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Publications and Presentations

This is a list of professional papers and talks at scientific meetings of which I've been an author or coauthor. It is divided as follows:

Doctoral Dissertation

Looper, M. D., "Energetic Protons in the Magnetosphere of Neptune," PhD dissertation in Physics advised by Prof. E. C. Stone, Department of Physics, Mathematics, and Astronomy, California Institute of Technology (abstract) (1993)

Refereed Papers

Mazur, J. E., T. P. O'Brien, M. D. Looper, and J. B. Blake, "Large Anisotropies of >60 MeV Protons Throughout the Inner Belt Observed with the Van Allen Probes Mission," Geophys. Res. Lett. 41, doi: 10.1002/2014GL060029 (2014)

Spence, Harlan E., Michael J. Golightly, Colin J. Joyce, Mark D. Looper, Nathan A. Schwadron, Sonya S. Smith, Lawrence W. Townsend, Jody Wilson, and Cary Zeitlin, "Relative Contributions of Galactic Cosmic Rays and Lunar Proton 'Albedo' to Dose and Dose Rates Near the Moon," Space Weather 11, 643-650, doi: 10.1002/2013SW000995 (2013)

Blake, J. B., P. A. Carranza, S. G. Claudepierre, J. H. Clemmons, W. R. Crain Jr., Y. Dotan, J. F. Fennell, F. H. Fuentes, R. M. Galvan, J. S. George, M. G. Henderson, M. Lalic, A. Y. Lin, M. D. Looper, D. J. Mabry, J. E. Mazur, B. McCarthy, C. Q. Nguyen, T. P. O'Brien, M. A. Perez, M. T. Redding, J. L. Roeder, D. J. Salvaggio, G. A. Sorensen, H. E. Spence, S. Yi, and M. P. Zakrzewski, "The Magnetic Electron Ion Spectrometer (MagEIS) Instruments Aboard the Radiation Belt Storm Probes (RBSP) Spacecraft," Space Sci. Rev. 179 (1-4), 383-421, doi: 10.1007/s11214-013-9991-8 (2013) (online open access)

DeIonno, Erica, Mark D. Looper, Jon V. Osborn, Hugh J. Barnaby, and William M. Tong, "Radiation Effects Studies on Thin Film TiO2 Memristor Devices," Proceedings of the 2013 IEEE Aerospace Conference, doi: 10.1109/AERO.2013.6497378 (2013)

Case, A. W., J. C. Kasper, H. E. Spence, C. J. Zeitlin, M. D. Looper, M. J. Golightly, N. A. Schwadron, L. W. Townsend, J. E. Mazur, J. B. Blake, and Y. Iwata, "The Deep-Space Galactic Cosmic Ray Lineal Energy Spectrum at Solar Minimum," Space Weather 11, 361-368, doi: 10.1002/swe.20051 (2013)

Zeitlin, C., A. W. Case, H. E. Spence, N. A. Schwadron, M. Golightly, J. K. Wilson, J. C. Kasper, J. B. Blake, M. D. Looper, J. E. Mazur, L. W. Townsend, and Y. Iwata, "Measurements of Galactic Cosmic Ray Shielding with the CRaTER Instrument," Space Weather 11, 284-296, doi: 10.1002/swe.20043 (2013)

Looper, M. D., J. E. Mazur, J. B. Blake, H. E. Spence, N. A. Schwadron, M. J. Golightly, A. W. Case, J. C. Kasper, and L. W. Townsend, "The Radiation Environment Near the Lunar Surface: CRaTER Observations and Geant4 Simulations," Space Weather 11 (4), 142-152, doi: 10.1002/swe.20034 (2013)

The above paper was selected for the AGU "Research Spotlight," which led to an article by Charles Q. Choi on Space.com (also carried by NBCnews.com).

Mazur, J., L. Friesen, A. Lin, D. Mabry, N. Katz, Y. Dotan, J. George, J. B. Blake, M. Looper, M. Redding, T. P. O'Brien, J. Cha, A. Birkitt, P. Carranza, M. Lalic, F. Fuentes, R. Galvan, and M. McNab, "The Relativistic Proton Spectrometer (RPS) for the Radiation Belt Storm Probes Mission," Space Sci. Rev. 179 (1-4), 221-261, doi: 10.1007/s11214-012-9926-9 (2013) (online open access 2012)

Chen, Yue, Geoffrey Reeves, Reiner H. W. Friedel, Michelle F. Thomsen, Mark Looper, David Evans, and Jean-Andre Sauvaud, "LEEM: A New Empirical Model of Radiation-Belt Electrons in the Low-Earth-Orbit Region," J. Geophys. Res. 117, A11205, doi: 10.1029/2012JA017941 (2012)

Cattell, C. A., A. Breneman, K. Goetz, P. J. Kellogg, K. Kersten, J. R. Wygant, L. B. Wilson III, M. D. Looper, J. B. Blake, and I. Roth, "Large-Amplitude Whistler Waves and Electron Acceleration in the Earth's Radiation Belts: A Review of STEREO and Wind Observations," in Summers, Danny, Ian R. Mann, Daniel N. Baker, and Michael Schulz, eds., "Dynamics of the Earth's Radiation Belt and Inner Magnetosphere" (proceedings of Chapman Conference, St. John's, Newfoundland and Labrador, Canada, July 2011; Washington, DC: American Geophysical Union, 2012), 41-52, doi: 10.1029/2012GM001322

Wilson, Jody K., Harlan E. Spence, Justin Kasper, Michael Golightly, J. Bern Blake, Joe E. Mazur, Lawrence W. Townsend, Anthony W. Case, Mark Dixon Looper, Cary Zeitlin, and Nathan A. Schwadron, "The First Cosmic Ray Albedo Proton Map of the Moon," J. Geophys. Res. 117, E00H23, doi: 10.1029/2011JE003921 (2012)

Mewaldt, R. A., M. D. Looper, C. M. S. Cohen, D. K. Haggerty, A. W. Labrador, R. A. Leske, G. M. Mason, J. E. Mazur, and T. T. von Rosenvinge, "Energy Spectra, Composition, and Other Properties of Ground-Level Events During Solar Cycle 23," Space Sci. Rev. 171, 97-120, doi: 10.1007/s11214-012-9884-2 (2012)

Kersten, K., C. A. Cattell, A. Breneman, K. Goetz, P. J. Kellogg, J. R. Wygant, L. B. Wilson III, J. B. Blake, M. D. Looper, and I. Roth, "Observations of Relativistic Electron Microbursts in Conjunction with Intense Radiation Belt Whistler-Mode Waves," Geophys. Res. Lett. 38, L08107, doi: 10.1029/2011GL046810 (2011)

Mazur, J. E., W. R. Crain, M. D. Looper, D. J. Mabry, J. B. Blake, A. W. Case, M. J. Golightly, J. C. Kasper, and H. E. Spence, "New Measurements of Total Ionizing Dose in the Lunar Environment," Space Weather 9, S07002, doi: 10.1029/2010SW000641 (2011)

Verkhoglyadova, O. P., G. Li, G. P. Zank, Q. Hu, C. M. S. Cohen, R. A. Mewaldt, G. M. Mason, D. K. Haggerty, T. T. von Rosenvinge, and M. D. Looper, "Understanding Large SEP Events With the PATH code: Modeling of the 13 December 2006 SEP Event," J. Geophys. Res. 115, A12103, doi: 10.1029/2010JA015615 (2010)

Tong, W. M., J. J. Yang, P. J. Kuekes, D. R. Stewart, R. S. Williams, E. DeIonno, E. E. King, S. C. Witczak, M. D. Looper, and J. V. Osborn, "Radiation Hardness of TiO2 Memristive Junctions," IEEE Trans. Nucl. Sci. 57 (3), 1640-1643, doi: 10.1109/TNS.2010.2045768 (2010)

Tu, Weichao, Richard Selesnick, Xinlin Li, and Mark Looper, "Quantification of the Precipitation Loss of Radiation Belt Electrons Observed by SAMPEX," J. Geophys. Res. 115, A07210, doi: 10.1029/2009JA014949 (2010)

Spence, H. E., A. W. Case, M. J. Golightly, T. Heine, B. A. Larsen, J. B. Blake, P. Caranza, W. R. Crain, J. George, M. Lalic, A. Lin, M. D. Looper, J. E. Mazur, D. Salvaggio, J. C. Kasper, T. J. Stubbs, M. Doucette, P. Ford, R. Foster, R. Goeke, D. Gordon, B. Klatt, J. O'Connor, M. Smith, T. Onsager, C. Zeitlin, L. W. Townsend, and Y. Charara, "CRaTER: The Cosmic Ray Telescope for the Effects of Radiation Experiment on the Lunar Reconnaissance Orbiter Mission," Space Sci. Rev. 150, 243-284, doi: 10.1007/s11214-009-9584-8 (2010)

Selesnick, R. S., M. D. Looper, and R. A. Mewaldt, "A Model of the Secondary Radiation Belt," J. Geophys. Res. 113, A11221, doi: 10.1029/2008JA013593 (2008)

Kress, B. T., M. K. Hudson, M. D. Looper, J. G. Lyon, and C. C. Goodrich, "Global MHD Test Particle Simulations of Solar Energetic Electron Trapping in the Earth's Radiation Belts," J. Atmos. Solar-Terr. Phys. 70 (14), 1727-1737, doi: 10.1016/j.jastp.2008.05.018 (2008)

Selesnick, R. S., M. D. Looper, R. A. Mewaldt, and A. W. Labrador, "Geomagnetically Trapped Antiprotons," Geophys. Res. Lett. 34, L20104, doi: 10.1029/2007GL031475 (2007)

Kress, B. T., M. K. Hudson, M. D. Looper, J. Albert, J. G. Lyon, and C. C. Goodrich, "Global MHD Test Particle Simulations of >10 MeV Radiation Belt Electrons During Storm Sudden Commencement," J. Geophys. Res. 112, A09215, doi: 10.1029/2006JA012218 (2007)

Selesnick, R. S., M. D. Looper, and R. A. Mewaldt, "A Theoretical Model of the Inner Proton Radiation Belt," Space Weather 5, S04003, doi: 10.1029/2006SW000275 (2007)

Mewaldt, R. A., C. M. S. Cohen, G. M. Mason, A. W. Labrador, M. L. Looper, D. E. Haggerty, C. G. Maclennan, A. C. Cummings, M. I. Desai, R. A. Leske, G. Li, J. E. Mazur, E. C. Stone, and M. E. Wiedenbeck, "Solar Energetic Particle Spectral Breaks," in Li, G. Y., G. P. Zank, and C. T. Russell, eds., "The Physics of Collisionless Shocks" (proceedings of 4th Annual IGPP International Astrophysics Conference, Palm Springs, CA, February/March 2005; Melville, NY: American Institute of Physics, 2005), 227-232

Blake, J. B., P. L. Slocum, J. E. Mazur, M. D. Looper, and R. S. Selesnick, "Geoeffectiveness of Shocks in Populating the Radiation Belts," in Lui, A. T. Y., Y. Kamide, and G. Consolini, eds., "Multiscale Coupling of Sun-Earth Processes" (proceedings of Conference on Sun-Earth Connections, Kailua-Kona, HI, February 2004; Amsterdam: Elsevier B. V., 2005), 125-133

Mewaldt, R. A., C. M. S. Cohen, A. W. Labrador, R. A. Leske, G. M. Mason, M. I. Desai, M. D. Looper, J. E. Mazur, R. S. Selesnick, and D. K. Haggerty, "Proton, Helium, and Electron Spectra During the Large Solar Particle Events of October-November 2003," J. Geophys. Res. 110, A09S18, doi: 10.1029/2005JA011038 (2005)

Looper, M. D., J. B. Blake, and R. A. Mewaldt, "Response of the Inner Radiation Belt to the Violent Sun-Earth Connection Events of October-November 2003," Geophys. Res. Lett. 32, L03S06, doi: 10.1029/2004GL021502 (2005)

Selesnick, R. S., M. D. Looper, and J. M. Albert, "Low-Altitude Distribution of Radiation Belt Electrons," J. Geophys. Res. 109, A11209, doi: 10.1029/2004JA010611 (2004)

O'Brien, T. P., M. D. Looper, and J. B. Blake, "Quantification of Relativistic Electron Microburst Losses During the GEM Storms," Geophys. Res. Lett. 31, L04802, doi: 10.1029/2003GL018621 (2004)

Kanekal, S. G., D. N. Baker, J. B. Blake, M. D. Looper, R. A. Mewaldt, and C. A. Lopate, "Modulation of Jovian Electrons at 1 AU During Solar Cycles 22-23," Geophys. Res. Lett. 30, 1795, doi: 10.1029/2003GL017502 (2003)

O'Brien, T. P., K.R. Lorentzen, I. R. Mann, N. P. Meredith, J. B. Blake, J. F. Fennell, M. D. Looper, D. K. Milling, and R. R. Anderson, "Energization of Relativistic Electrons in the Presence of ULF Power and MeV Microbursts: Evidence for Dual ULF and VLF Acceleration," J. Geophys. Res. 108, 1329, doi: 10.1029/2002JA009784 (2003)

Lorentzen, K. R., J. E. Mazur, M. D. Looper, J. F. Fennell, and J. B. Blake, "Multi-Satellite Observations of MeV Ion Injections During Storms," J. Geophys. Res. 107, 1231, doi: 10.1029/2001JA000276 (2002)

Crain, S. H., J. E. Mazur, R. B. Katz, R. Koga, M. D. Looper, and K. R. Lorentzen, "Analog and Digital Single-Event Effects Experiments in Space," IEEE Trans. on Nucl. Sci. 48 (6), 1841-1848, doi: 10.1109/23.983140 (2001)

Li, X., D. N. Baker, S. G. Kanekal, M. Looper, and M. Temerin, "Long Term Measurements of Radiation Belts by SAMPEX and Their Variations," Geophys. Res. Lett. 28 (20), 3827-3830, doi: 10.1029/2001GL013586 (2001)

Lorentzen, K. R., M. D. Looper, and J. B. Blake, "Relativistic Electron Microbursts During the GEM Storms," Geophys. Res. Lett. 28 (13), 2573-2576, doi: 10.1029/2001GL012926 (2001)

Mazur, J. E., G. M. Mason, J. B. Blake, B. Klecker, R. A. Leske, M. D. Looper, and R. A. Mewaldt, "Anomalous Cosmic Ray Argon and Other Rare Elements at 1-4 MeV/nucleon Trapped Within the Earth's Magnetosphere," J. Geophys. Res. 105 (A9), 21015-21023, doi: 10.1029/1999JA000272 (2000)

Pierrard, V., J. Lemaire, D. Heynderickx, M. Kruglanski, M. D. Looper, J. B. Blake, and R. A. Mewaldt, "Statistical Analysis of SAMPEX PET Proton Measurements," Nucl. Inst. and Meth. A 449 (1-2), 378-382, doi: 10.1016/S0168-9002(99)01454-0 (2000)

Nakamura, R., M. Isowa, Y. Kamide, D. N. Baker, J. B. Blake, and M. Looper, "SAMPEX Observations of Precipitation Bursts in the Outer Radiation Belt," J. Geophys. Res. 105 (A7), 15875-15885, doi: 10.1029/2000JA900018 (2000)

Heynderickx, D., M. Kruglanski, V. Pierrard, J. Lemaire, M. D. Looper, and J. B. Blake, "A Low Altitude Trapped Proton Model for Solar Minimum Conditions Based on SAMPEX/PET Data," IEEE Trans. on Nucl. Sci. 46 (6), 1475-1480, doi: 10.1109/23.819110 (1999)

Mazur, J. E., G. M. Mason, M. D. Looper, R. A. Leske, and R. A. Mewaldt, "Charge States of Solar Energetic Particles Using the Geomagnetic Cutoff Technique: SAMPEX Measurements in the 6 November 1997 Solar Particle Event," Geophys. Res. Lett. 26 (2), 173-176, doi: 10.1029/1998GL900075 (1999)

Nakamura, R., K. Kamei, Y. Kamide, D. N. Baker, J. B. Blake, and M. Looper, "SAMPEX Observations of Storm-Associated Electron Flux Variations in the Outer Radiation Belt," J. Geophys. Res. 103 (A11), 26261-26269, doi: 10.1029/97JA02873 (1998)

Looper, M. D., J. B. Blake, and R. A. Mewaldt, "Maps of Hydrogen Isotopes at Low Altitudes in the Inner Zone from SAMPEX Observations," Adv. in Space Res. 21 (12), 1679-1682, doi: 10.1016/S0273-1177(98)00014-3 (1998)

Mason, G. M., D. N. Baker, J. B. Blake, R. E. Boughner, L. B. Callis, A. C. Cummings, J. R. Cummings, M. E. Greenspan, D. C. Hamilton, D. Hovestadt, S. G. Kanekal, B. Klecker, R. L. Leske, X. Li, M. D. Looper, J. E. Mazur, R. A. Mewaldt, M. Oetliker, M. Scholer, R. S. Selesnick, E. C. Stone, T. T. von Rosenvinge, and D. L. Williams, "SAMPEX: NASA's First Small Explorer Satellite," Proceedings of the 1998 IEEE Aerospace Conference 5, 389-412, doi: 10.1109/AERO.1998.685848 (1998)

Li, Xinlin, D. N. Baker, M. Temerin, T. E. Cayton, E. G. D. Reeves, R. A. Christensen, J. B. Blake, M. D. Looper, R. Nakamura, and S. G. Kanekal, "Multisatellite Observations of the Outer Zone Electron Variation During the November 3-4, 1993, Magnetic Storm," J. Geophys. Res. 102 (A7), 14123-14140, doi: 10.1029/97JA01101 (1997)

Li, Xinlin, D. N. Baker, M. Temerin, D. Larson, R. P. Lin, G. D. Reeves, M. Looper, S. G. Kanekal, and D. A. Mewaldt, "Are Energetic Electrons in the Solar Wind the Source of the Outer Radiation Belt?", Geophys. Res. Lett. 24 (8), 923-926, doi: 10.1029/97GL00543 (1997)

Blake, J. B., M. D. Looper, E. Keppler, B. Heber, H. Kunow, and J. J. Quenby, "Ulysses Observations of Short-Period (≤30 days) Modulation of the Galactic Cosmic Rays," Geophys. Res. Lett. 24 (6), 671-674, doi: 10.1029/97GL00129 (1997)

Anderson, P. C., I. W. McCrea, D. J. Strickland, J. B. Blake, and M. D. Looper, "Coordinated EISCAT/DMSP Measurements of Electron Density and Energetic Electron Precipitation," J. Geophys. Res. 102 (A4), 7421-7430, doi: 10.1029/96JA03824 (1997)

Oetliker, M., B. Klecker, D. Hovestadt, G. M. Mason, J. E. Mazur, R. A. Leske, R. A. Mewaldt, J. B. Blake, and M. D. Looper, "The Ionic Charge of Solar Energetic Particles with Energies of 0.3-70 MeV per Nucleon," Astrophys. J. 477, 495-501, doi: 10.1086/303679 (1997)

Koga, R., M. D. Looper, S. D. Pinkerton, W. J. Stapor, and P. T. McDonald, "Low Dose Rate Proton Irradiation of Quartz Crystal Resonators," IEEE Trans. on Nucl. Sci. 43 (6), 3174-3181, doi: 10.1109/23.556922 (1996)

Looper, M. D., J. B. Blake, J. R. Cummings, and R. A. Mewaldt, "SAMPEX Observations of Energetic Hydrogen Isotopes in the Inner Zone," Radiation Measurements 26 (6), 967-978, doi: 10.1016/S1350-4487(96)00098-4 (1996)

Looper, M. D., J. B. Blake, B. Klecker, and D. Hovestadt, "Trapped Anomalous Cosmic Rays Near the Geomagnetic Cutoff," J. Geophys. Res. 101 (A11), 24747-24753, doi: 10.1029/96JA02252 (1996)

Baker, D. N., S. G. Kanekal, M. D. Looper, J. B. Blake, and R. A. Mewaldt, "Jovian, Solar, and Other Possible Sources of Radiation Belt Particles," in Lemaire, J. F., D. Heynderickx, and D. N. Baker, eds., "Radiation Belts: Models and Standards" (Geophysical Monograph 97; Washington, DC: American Geophysical Union, 1996), 49-55, doi: 10.1029/GM097p0049

Blake, J. B., M. D. Looper, D. N. Baker, R. Nakamura, B. Klecker, and D. Hovestadt, "New High Temporal and Spatial Resolution Measurements by SAMPEX of the Precipitation of Relativistic Electrons," Adv. in Space Res. 18 (8), 171-186 (1996)

Mason, G. M., J. E. Mazur, M. D. Looper, and R. A. Mewaldt, "Charge State Measurements of Solar Energetic Particles Observed with SAMPEX," Astrophys. J. 452, 901-911 (1995)

Klecker, B., M. C. McNab, J. B. Blake, D. C. Hamilton, D. Hovestadt, H. Kästle, M. D. Looper, G. M. Mason, J. E. Mazur, and M. Scholer, "Charge State of Anomalous Cosmic Ray Nitrogen, Oxygen, and Neon: SAMPEX Observations," Astrophys. J. (Lett.) 442, L69-L72 (1995)

Looper, M. D., J. B. Blake, R. A. Mewaldt, J. R. Cummings, and D. N. Baker, "Observations of the Remnants of the Ultrarelativistic Electrons Injected by the Strong SSC of 24 March 1991," Geophys. Res. Lett. 21 (19), 2079-2082, doi: 10.1029/94GL01586 (1994)

Stone, E. C., A. C. Cummings, M. D. Looper, R. S. Selesnick, N. Lal, F. B. McDonald, J. H. Trainor, and D. L. Chenette, "Energetic Charged Particles in the Magnetosphere of Neptune," Science 246, 1489-1494 (1989)

Unrefereed Papers in Conference Proceedings

26th Int'l. Cosmic Ray Conference, Salt Lake City, August 1999

Christian, E. R., W. R. Binns, J. B. Blake, C. M. S. Cohen, A. C. Cummings, J. R. Dwyer, D. C. Hamilton, M. E. Hill, P. L. Hink, E. Keppler, S. M. Krimigis, R. A. Leske, M. D. Looper, R. G. Marsden, G. M. Mason, J. E. Mazur, R. A. Mewaldt, T. R. Sanderson, E. C. Stone, T. T. von Rosenvinge, M. E. Wiedenbeck, and N. Yanasak, "Observations of the Solar Modulation of Galactic and Anomalous Cosmic Rays During Solar Minimum," Proceedings of the XXVI ICRC (Salt Lake City) 7, 519-522 (1999), poster SH 4.2.09

Looper, M. D., J. B. Blake, and R. A. Mewaldt, "Continuing SAMPEX Observations of Shock-Injected Ultrarelativistic Electrons," Proceedings of the XXVI ICRC (Salt Lake City) 6, 456-459 (1999), paper SH 2.1.13

Mazur, J. E., G. M. Mason, M. D. Looper, R. A. Leske, and R. A. Mewaldt, "Charge States of Energetic Particles Using the Geomagnetic Cutoff Technique: SAMPEX Measurements in the 6 November 1997 Solar Particle Events," Proceedings of the XXVI ICRC (Salt Lake City) 6, 79-82 (1999), paper SH 1.4.05

25th Int'l. Cosmic Ray Conference, Durban, July/August 1997

Oetliker, M., B. Klecker, D. Hovestadt, G. M. Mason, J. E. Mazur, J. B. Blake, M. D. Looper, R. A. Leske, and R. A. Mewaldt, "The Ionic Charge of Solar Energetic Particles with Energies of 0.3 - 70 MeV per Nucleon," Proceedings of the XXV ICRC (Durban) 1, 93-96 (1997), paper SH 1.5.10

24th Int'l. Cosmic Ray Conference, Rome, August 1995

Klecker, B., M. C. McNab, J. B. Blake, D. C. Hamilton, D. Hovestadt, H. Kästle, M. D. Looper, G. M. Mason, J. E. Mazur, and M. Scholer, "Charge States of Anomalous Cosmic Rays: SAMPEX Observations," Proceedings of the XXIV ICRC (Rome) 4, 489-492 (1995), paper SH 5.1.12

Looper, M. D., J. B. Blake, B. Klecker, and D. Hovestadt, "A Search for Molecular Ions in the Anomalous Cosmic Rays," Proceedings of the XXIV ICRC (Rome) 4, 501-504 (1995), paper SH 5.1.15

Oetliker, M., B. Klecker, D. Hovestadt, M. Scholer, J. B. Blake, M. Looper, and R. A. Mewaldt, "Charge States of Heavy Solar Energetic Particles: Observations with the HILT Sensor on SAMPEX," Proceedings of the XXIV ICRC (Rome) 4, 470-473 (1995), paper SH 5.1.5

R. S. Selesnick, J. R. Cummings, R. A. Mewaldt, E. C. Stone, G. M. Mason, J. E. Mazur, J. B. Blake, M. D. Looper, B. Klecker, and D. Hovestadt, "Observations of the Geomagnetically Trapped Anomalous Cosmic Rays," Proceedings of the XXIV ICRC (Rome) 4, 1013-1016 (1995), paper SH 8.1.9

Talks at Conferences

AGU 2014 Fall Meeting, San Francisco, CA, December 2014

Claudepierre, Seth, Thomas O'Brien, J. Blake, Joseph Fennell, Mark Looper, James Clemmons, James Roeder, Joseph Mazur and Tamitha Mulligan, "Van Allen Probes ECT/MagEIS Background Corrected Electron Flux Measurements: Methods and Initial Findings," paper SM21A-02

Jones, Ashley, Shrikanth Kanekal, Berndt Klecker, Mark Looper, and Joseph Mazur, "Spatial Drift of SAA Over Solar Cycles 22-24," poster SM31C-4220

Looper, Mark, Joseph Mazur, J. Blake, Harlan Spence, Nathan Schwadron, Michael Golightly, Anthony Case, Justin Kasper, Lawrence Townsend, and Jody Wilson, "Galactic Cosmic Rays and Lunar Secondary Particles from Solar Minimum to Maximum: CRaTER Observations and Geant4 Modeling," paper SH24A-07

Mazur, Joseph, Thomas O'Brien, Mark Looper, J. Blake, and Jeffrey George, "An Observational Test of the Stability of Inner Belt Protons Above 60 MeV Using Measurements Separated By 41 Years," paper SM22A-02

Townsend, Lawrence, Jamie Porter, Harlan Spence, Michael Golightly, Sonya Smith, Nathan Schwadron, Justin Kasper, Anthony Case, J. Blake, Joseph Mazur, Mark Looper, and Cary Zeitlin, "Benchmarking Space Radiation Transport Codes Using Measured LET Spectra from the CRaTER Instrument on LRO," paper SH24A-06 (invited)

Wilson, Jody, Nathan Schwadron, Harlan Spence, Anthony Case, Michael Golightly, Andrew Jordan, Mark Looper, Noah Petro, Mark Robinson, Timothy Stubbs, Cary Zeitlin, J. Blake, Justin Kasper, Joseph Mazur, Sonya Smith, and Lawrence Townsend, "Lunar Proton Albedo Anomalies: Soil, Surveyors, and Statistics," poster P13D-3853

AGU 2013 Fall Meeting, San Francisco, CA, December 2013

Blake, J. B., J. F. Fennell, Seth G. Claudepierre, Mark D. Looper, Joseph E. Mazur, Thomas P. O'Brien, James H. Clemmons, Daniel N. Baker, Geoffrey D. Reeves, Harlan Spence, and Herbert O. Funsten, "Relativistic Electrons in the Inner Zone and Slot -- Quiet Time Observations by the Van Allen Probes," paper SM24B-03

Guild, Timothy B., Joseph E. Mazur, Mark D. Looper, and J. B. Blake, "New Observations of the Low Energy Proton Inner Belt," poster SM33A-2157

Li, Xinlin, Quintin Schiller, Lauren W. Blum, Sam Califf, Hong Zhao, Allison N. Jaynes, Weichao Tu, Drew L. Turner, David Gerhardt, Scott E. Palo, Richard Selesnick, Shrikanth G. Kanekal, Daniel N. Baker, J. F. Fennell, J. B. Blake, Mark D. Looper, Geoffrey D. Reeves, and Harlan Spence, "Update on Science Results from CubeSat: Colorado Student Space Weather Experiment (CSSWE)," paper SM31B-08

Looper, Mark D., Joseph E. Mazur, Thomas P. O'Brien, Jeffrey S. George, and J. Bernard Blake, "Galactic Cosmic Ray Access to the Inner Magnetosphere Measured by the Relativistic Proton Spectrometer aboard the Van Allen Probes," paper SM24B-02

Mazur, Joseph E., Thomas P. O'Brien, Mark D. Looper, Jeffrey S. George, and J. Bernard Blake, "New Measurements of Inner Belt Proton Flux Gradients from the Van Allen Probes Mission," paper SM34A-01

Wilson, Jody K., Nathan Schwadron, Harlan Spence, Sonya S. Smith, Michael J. Golightly, Anthony W. Case, Timothy J. Stubbs, J. B. Blake, Justin C. Kasper, Mark D. Looper, Joseph E. Mazur, Lawrence W. Townsend, and Cary J. Zeitlin, "Detecting Low-Contrast Features in the Cosmic Ray Albedo Proton Yield Map of the Moon," poster P51E-1778

AGU 2012 Fall Meeting, San Francisco, CA, December 2012

Davis, Andrew, Shrikanth Kanekal, Mark D. Looper, and Joseph E. Mazur, "The SAMPEX Data Center and User Interface for the Heliophysics Community," poster SH33C-2248

Guild, Timothy B., Paul P. O'Brien, and Mark D. Looper, "Inner Radiation Belt Dynamics and Climatology," paper SM44A-04

Jordan, Andrew, Timothy J. Stubbs, Nathan A. Schwadron, Harlan E. Spence, Jody K. Wilson, Mark D. Looper, and Cary Zeitlin, "Deep Dielectric Charging of the Moon," poster P53A-2054

Looper, Mark D., Joseph E. Mazur, Bern Blake, Harlan E. Spence, Michael J. Golightly, Anthony W. Case, Justin C. Kasper, and Lawrence W. Townsend, "Energy and Angular Distribution of GCR Secondary Particles from the Lunar Surface: CRaTER Observations and Geant4 Simulations," poster P53A-2043

Mazur, Joseph E., L. Friesen, A. Lin, D. Mabry, N. Katz, Y. Dotan, Jeffrey S. George, J. B. Blake, Mark D. Looper, M. Redding, Paul P. O'Brien, J. Cha, A. Birkitt, P. Carranza, M. Lalic, F. Fuentes, R. Galvan, and Michael C. McNab, "The Relativistic Proton Spectrometer (RPS) for the Radiation Belt Storm Probes Mission," paper SM24A-01 (invited)

Tu, Weichao, Geoffrey D. Reeves, Gregory Cunningham, Richard S. Selesnick, Xinlin Li, and Mark D. Looper, "From Low Altitude to High Altitude: Assimilating SAMPEX Data in Global Radiation Belt Models by Quantifying Precipitation and Loss," poster SH33C-2247

Wilson, Jody K., Harlan E. Spence, Anthony W. Case, J. B. Blake, Michael J. Golightly, Justin C. Kasper, Mark D. Looper, Joseph E. Mazur, Nathan A. Schwadron, Lawrence W. Townsend, and Cary J. Zeitlin, "Cosmic Ray Albedo Proton Yield Correlated with Lunar Elemental Abundances," poster P53A-2052

AGU 2011 Fall Meeting, San Francisco, CA, December 2011

Case, A. W., J. C. Kasper, H. E. Spence, M. J. Golightly, N. A. Schwadron, J. E. Mazur, J. B. Blake, M. D. Looper, L. Townsend, and C. J. Zeitlin, "Evolution of the Deep-Space Galactic Cosmic Ray Lineal Energy Transfer Spectrum Through Tissue Equivalent Plastic," poster SH21B-1920

Golightly, M. J., N. A. Schwadron, H. E. Spence, J. K. Wilson, A. W. Case, L. Townsend, J. C. Kasper, J. B. Blake, M. D. Looper, and J. E. Mazur, "Galactic Cosmic Ray Dose Rate at 1 A.U. During Solar Activity Cycle 24 Minimum," poster SH21B-1921

Looper, M. D., J. E. Mazur, J. B. Blake, H. E. Spence, M. J. Golightly, A. W. Case, J. C. Kasper, and L. Townsend, "The Radiation Environment Near the Moon at Solar Minimum: CRaTER Observations and Geant4 Modeling," poster SH21B-1924

Mazur, J., M. D. Looper, J. B. Blake, A. W. Case, J. C. Kasper, H. E. Spence, M. J. Golightly, and L. Townsend, "Galactic and Solar Particle Anisotropies Observed in a Polar Lunar Orbit," poster SH41A-1910

Wilson, J. K., H. E. Spence, J. C. Kasper, M. J. Golightly, J. B. Blake, J. E. Mazur, L. Townsend, A. W. Case, M. D. Looper, C. J. Zeitlin, and N. A. Schwadron, "The First Cosmic Ray Proton Albedo Map of the Moon," paper P43F-07

AGU 2010 Fall Meeting, San Francisco, CA, December 2010

Golightly, M. J., N. A. Schwadron, H. E. Spence, J. K. Wilson, A. Case, L. Townsend, J. C. Kasper, J. Blake, M. D. Looper, and J. Mazur, "GCR Dose Rate Observed in Lunar Orbit During the Transition from Solar Cycle 23 to Cycle 24," poster SH51E-1729

Kersten, K., C. A. Catell, A. W. Breneman, K. Goetz, P. J. Kellogg, L. B. Wilson, J. R. Wygant, J. Blake, M. D. Looper, and I. Roth, "Observation of Relativistic Electron Microbursts in Conjunction with Intense Radiation Belt Whistlers," poster SM33C-1910

Looper, M. D., J. Mazur, J. B. Blake, H. E. Spence, M. Golightly, and A. W. Case, "The Lunar Radiation Environment: LRO/CRaTER Observations and Geant4 Modeling," poster SH51E-1727

Spence, H E., M. Golightly, N. A. Schwadron, J. K. Wilson, A. Case, J. C. Kasper, J. Blake, M. D. Looper, J. Mazur, L. Townsend, C. Zeitlin, and T. J. Stubbs (The CRaTER Science Team), "An Overview of First-Year Results from the Lunar Reconnaissance Orbiter (LRO) Cosmic Ray Telescope for the Effects of Radiation (CRaTER)," paper SH53C-04 (invited)

Tu, W., X. Li, R. S. Selesnick, and M. D. Looper, "Quantification of the Precipitation Loss of Radiation Belt Electrons Observed by SAMPEX," paper SM13C-03 (invited)

Wilson, J. K., H. Spence, J. Kasper, M. Golightly, J. Blake, J. E. Mazur, L. Townsend, A. Case, and M. D. Looper, "First Cosmic Ray Proton Albedo Map of the Moon," poster SH51B-1671

The Meeting of the Americas, Foz do Iguaçu, Brazil, August 2010

Li, X., W. Tu, D. L. Turner, R. S. Selesnick, and M. D. Looper, "Determining the Loss of Radiation Belt Electrons: What Measurements and Models Are Required?," paper SM32A-07

AGU 2010 Western Pacific Geophysics Meeting, Taipei, Taiwan, June 2010

Spence, H. E., C. Huang, J. Kasper, M. Golightly, J. Blake, J. Mazur, L. Townsend, A. Case, M. Looper, B. Larsen, T. J. Stubbs, C. Zeitlin, E. Semones, T. Onsager, and A. Jordan, "Early Results from the LRO Cosmic Ray Telescope for the Effects of Radiation (CRaTER): Spatial Variability of Galactic Cosmic Rays at Moon's Orbit," paper P22A-02 (invited)

Mewaldt, R. A., M. D. Looper, D. K. Haggerty, C. M. Cohen, A. W. Labrador, R. A. Leske, G. M. Mason, and J. E. Mazur, "Spectra and Properties of Ground-Level Events During Solar Cycle 23," poster SH33A-01

AGU 2009 Fall Meeting, San Francisco, CA, December 2009

Blake, J. B., J. E. Mazur, M. D. Looper, H. E. Spence, G. De Angelis, T. Dachev, B. Tomov, Y. Matviichuk, P. Dimitrov, and F. Spurny, "The Radiation Environment in Low Lunar Orbit," poster U31B-0026

Kasper, J. C., H. E. Spence, M. J. Golightly, A. W. Case, J. B. Blake, J. E. Mazur, M. D. Looper, and L. W. Townsend, "Effects of the Moon on Galactic Cosmic Rays as Seen by the CRaTER Instrument on LRO," paper U21C-08

Looper, M. D., J. B. Blake, J. E. Mazur, and H. E. Spence, "Secondary-Particle Production in Organic Material by Cosmic Rays: Simulations and CRaTER Observations," poster U31B-0025

Spence, H. E., J. C. Kasper, M. J. Golightly, J. B. Blake, J. E. Mazur, L. W. Townsend, A. W. Case, M. D. Looper, B. A. Larsen, T. J. Stubbs, C. J. Zeitlin, E. Semones, T. G. Onsager, C. Huang, and A. Jordan, "Early Results from the LRO Cosmic Ray Telescope for the Effects of Radiation (CRaTER) During This Historic Solar Minimum," paper U21C-07 (invited)

Tu, W., R. S. Selesnick, X. Li, and M. D. Looper, "Quantification of the Precipitation Loss of Radiation Belt Electrons Observed by SAMPEX," poster SM23A-1594

Verkhoglyadova, O. P., G. Li, G. P. Zank, Q. Hu, C. M. Cohen, R. A. Mewaldt, G. M. Mason, D. K. Haggerty, T. T. von Rosenvinge, and M. D. Looper, "Understanding Near-Earth Energetic Particle Environment During Large SEP Events with the PATH Code," poster SH33A-1489

AGU 2008 Fall Meeting, San Francisco, CA, December 2008

Guild, T. B., T. P. O'Brien, R. Selesnick, and M. Looper, "Inner Radiation Belt Data / Model Comparisons," poster SM11A-1581

Kress, B. T., M. K. Hudson, M. D. Looper, J. M. Albert, J. G. Lyon, and C. C. Goodrich, "Radiation Belt Energy and Pitch Angle Distributions Resulting from Shock-Drift Injections," paper SM41C-05 (invited)

Looper, M. D., J. B. Blake, and R. A. Mewaldt, "A Search for Heavy Hydrogen Isotopes in Cosmic-Ray Atmospheric Albedo with SAMPEX/PET," poster SM13A-1669

AGU 2007 Fall Meeting, San Francisco, CA, December 2007

Mazur, J. E., J. B. Blake, W. A. Kolasinski, N. Katz, A. Vampola, and M. D. Looper, "A New Perspective on Inner Zone Proton Data from 1971," poster SM31A-0241

AGU 2007 Joint Assembly, Acapulco, Mexico, May 2007

Li, X., Q. Zong, R. Selesnick, J. Fennell, M. Looper, R. Friedel, and G. Reeves, "Enhancements of Relativistic Electrons in the Inner Magnetosphere Associated with an Interplanetary Shock on November 7, 2004," paper SM53A-02

Selesnick, R. S., M. D. Looper, R. A. Mewaldt, and A. W. Labrador, "Antiprotons in the Radiation Belt," paper SH54A-03

AGU 2006 Fall Meeting, San Francisco, CA, December 2006

Charara, Y., L. Townsend, H. Spence, J. B. Blake, M. Golightly, E. Kepko, J. Kasper, M. Looper, and J. Mazur, "LRO Cosmic Ray Telescope for the Effects of Radiation (CRaTER): Instrument Overview and Computer Simulations of Detector Response to SEPs and GCRs," poster U41C-0829

Davis, A. J., S. G. Kanekal, M. D. Looper, G. M. Mason, and R. A. Mewaldt, "Integrating a Data Center and Resident Archive into the Emerging Virtual Observatory System: Practical Experience and Perspectives," paper SM11C-04 (invited)

Groves, C., R. S. Selesnick, J. E. Mazur, J. B. Blake, J. H. Clemmons, T. P. O'Brien, L. M. Friesen, N. Katz, W. A. Kolasinski, and M. D. Looper, "Proton Spectrometer Belt Research (PSBR)," poster SM33A-0334

Looper, M. D., J. B. Blake, and T. L. Mulligan, "A Search for Energetic-Electron Precursors to SEP Ions in SAMPEX Observations," paper SH42A-06

AGU 2006 Joint Assembly, Baltimore, MD, May 2006

Kress, B. T., M. K. Hudson, C. C. Goodrich, and M. D. Looper, "3D Test Particle Simulations of the Injections of Ultra-Relativistic Radiation Belt Electrons During the 29 Oct 2003 (Halloween) SSC," paper SM43B-03

O'Brien, T. P., C. L. Lemon, R. B. Horne, J. C. Green, J. E. Mazur, and M. D. Looper, "Electron Precipitation Bands and Electrostatic Waves," paper SM34A-04

Selesnick, R., and M. Looper, "Modeling the CRAND Protons," paper SM52A-06

Spence, H. E., J. B. Blake, M. J. Golightly, E. L. Kepko, J. C. Kasper, M. D. Looper, J. E. Mazur, and L. Townsend, "The Cosmic Ray Telescope for the Effects of Radiation (CRaTER): Lunar Science Goals," paper P41A-04

AGU 2005 Fall Meeting, San Francisco, CA, December 2005

Kanekal, S. G., M. D. Looper, D. N. Baker, and J. B. Blake, "Study of Proton Cutoffs During Geomagnetically Disturbed Times," poster SA21A-0284

Looper, M. D., J. B. Blake, J. E. Mazur, and R. A. Mewaldt, "Response of Low-Altitude Energetic Particles to Strong Geomagnetic Events: SAMPEX Observations 1992-2005," paper SM41D-04

Mewaldt, R. A., C. M. Cohen, R. A. Leske, A. W. Labrador, G. M. Mason, D. K. Haggerty, M. D. Looper, J. E. Mazur, R. S. Selesnick, and M. I. Desai, "Solar Energetic Particle Composition, Energy Spectra and Timing in the January 20, 2005 Event," poster SH23A-0320

Miyasaka, H., R. A. Mewaldt, E. C. Stone, M. D. Looper, G. M. Mason, and D. K. Haggerty, "Comparison Between Ground-Based and Direct Spacecraft Observations of Solar Energetic Particle Spectra During the January 20, 2005 Solar Flare," poster SH23A-0321

AGU 2005 Joint Assembly, New Orleans, LA, May 2005

Davis, A. J., G. M. Mason, P. Walpole, T. T. von Rosenvinge, M. D. Looper, J. B. Blake, J. E. Mazur, E. C. Stone, R. A. Leske, A. W. Labrador, R. A. Mewaldt, S. G. Kanekal, D. N. Baker, X. Li, and B. Klecker, "The SAMPEX Data Center and User Interface for the SEC Community," poster SH51B-01

Labrador, A. W., C. M. Cohen, R. A. Leske, R. A. Mewaldt, E. C. Stone, M. E. Wiedenbeck, G. M. Mason, M. I. Desai, T. T. von Rosenvinge, M. D. Looper, J. E. Mazur, R. S. Selesnick, and D. K Haggerty, "Composition and Ionic Charge State Measurements of the Large Solar Particle Event of 20 January 2005," paper SH33A-04

Lin, R. P., A. Y. Shih, S. Krucker, D. M. Smith, R. Murphy, G. Share, R. Mewaldt, C. M. Cohen, M. D. Looper, G. M. Mason, and D. K. Haggerty, "Relationship of Solar Flare Accelerated Particles to Solar Energetic Particles (SEPs) Observed in the Interplanetary Medium," paper SH33A-02

Mewaldt, R. A., M. D. Looper, C. M. Cohen, G. M. Mason, M. I. Desai, D. K. Haggerty, A. W. Labrador, R. A. Leske, J. E. Mazur, E. C. Stone, T. T. von Rosenvinge, and M. E. Wiedenbeck, "Space Weather Implications of the 20 January 2005 Solar Energetic Particle Event," paper SH32A-05

O'Brien, T. P., J. C. Green, J. E. Mazur, and M. D. Looper, "Electron Precipitation Bands: Possible Causes, Expectations, and Observations," poster SM23C-01

AGU 2004 Fall Meeting, San Francisco, CA, December 2004

Leske, R. A., C. M. S. Cohen, A. W. Labrador, R. A. Mewaldt, M. D. Looper, J. E. Mazur, R. S. Selesnick, M. I. Desai, and G. M. Mason, "The Relative Abundances of H, He, and Heavy Ions in Large Solar Energetic Particle Events," poster SH51A-0268

Selesnick, R. S., M. D. Looper, and R. A. Mewaldt, "Modeling the Inner Radiation Belt Protons," paper SM33B-05

AGU 2004 Western Pacific Geophysics Meeting, Honolulu, HI, August 2004

Blake, J. B., P. L. Slocum, J. E. Mazur, M. D. Looper, R. S. Selesnick, and K. Shiokawa, "Extreme Events During Solar Cycle 23 - Energetic Magnetospheric Particles," paper SM22A-05

AGU 2004 Joint Assembly, Montreal, Canada, May 2004

Looper, Mark D., J. B. Blake, Richard S. Selesnick, and Richard A. Mewaldt, "A Survey of Multi-MeV Electrons in Solar Energetic Particle Events Over a Complete Solar Cycle," paper SH22A-01

Mewaldt, R. A., G. M. Mason, C. M. S. Cohen, M. I. Desai, A. L. Labrador, M. D. Looper, R. A. Leske, J. E. Mazur, E. C. Stone, T. T. von Rosenvinge, and M. E. Wiedenbeck, "The Q/M Dependence of Spectral Breaks in the Large Solar-Particle Events of October 28 and 29, 2003," paper SH23B-05

O'Brien, Thomas Paul, Janet C. Green, Terrance G. Onsager, Reiner H. W. Friedel, Joseph F. Fennell, and Mark D. Looper, "Comprehensive Investigation of Dramatic MeV Electron Loss Events," poster SM41A-04

AGU 2003 Fall Meeting, San Francisco, CA, December 2003

Labrador, Allan W., R. Leske, S. Kanekal, B. Klecker, M. Looper, and R. Mewaldt, "Measurements of the Geomagnetic Cutoff Rigidity-Dependence for Solar Energetic Particle Events," poster SM31B-1115

Looper, Mark D., J. B. Blake, and Richard A. Mewaldt, "SAMPEX Observations of the Inner Radiation Belt Over a Complete Solar Cycle," paper SM51E-01

Mazur, Joseph E., J. Bernard Blake, Mark D. Looper, Glenn M. Mason, Richard A. Mewaldt, Berndt Klecker, and Shri Kanekal, "Non-Uniform Precipitation of Solar Energetic Particles Across the Earth's Polar Caps," paper SM42D-05

Mewaldt, R. A., C. M. S. Cohen, A. W. Labrador, R. A. Leske, G. M. Mason, M. L. Looper, J. E. Mazur, and E. C. Roelof, "Variable Contributions of Solar Energetic Protons, Helium, Heavy-Ions and Electrons to the Ionization of the Upper Atmosphere," poster SM31B-1116

O'Brien, Thomas Paul, Mark D. Looper, and Bern Blake, "Quantification of Relativistic Electron Microburst Losses During the GEM Storms," poster SM41C-0586

AGU 2002 Fall Meeting, San Francisco, CA, December 2002

Cohen, C. M. S., R. A. Mewaldt, G. M. Mason, M. D. Looper, J. R. Dwyer, R. A. Leske, J. E. Mazur, and T. von Rosenvinge, "Composition and Spectra of Solar Energetic Particles From ˜0.1 to >100 MeV / nucleon During the April, 2002 Storms Period," paper SA12A-03

Labrador, A., R. A. Leske, S. Kanekal, B. Klecker, M. Looper, J. Mazur, and R. Mewaldt, "SAMPEX Measurements of Geomagnetic-Cutoff Variations During the 4/21/02 Solar Energetic Particle Event," poster SA21B-0434

Li, G., G. P. Zank, W. K. Rice, G. M. Mason, M. I. Desai, R. Mewaldt, C. M. Cohen, and M. D. Looper, "On Modeling the April 21, 2002 SEP Event," poster SA21B-0433

Slocum, P. L., J. B. Blake, J. F. Fennell, M. K. Hudson, M. D. Looper, K. R. Lorentzen, and J. E. Mazur, "Observations of Ion Injections During Large Solar Energetic Particle Events," poster SM51A-0501

AGU 2002 Western Pacific Geophysics Meeting, Wellington, New Zealand, July 2002

Li, X., D. N. Baker, S. G. Kanekal, M. Looper, and M. Temerin, "Long Term and Short Term Forecast of Radiation Belt Electrons," paper SP31D-02 (invited)

AGU 2002 Spring Meeting, Washington, DC, May 2002

Kanekal, S. G., D. N. Baker, J. B. Blake, and M. D. Looper, "Observations of Jovian Electrons over the Earth's Polar Regions: 1992-2001," paper SM52A-11

AGU 2001 Fall Meeting, San Francisco, CA, December 2001

Lorentzen, K. R., M. D. Looper, J. B. Blake, R. M. Millan, D. M. Smith, and R. P. Lin, "Precipitation of Relativistic Electrons from the Drift Loss Cone," paper SM52A-09

AGU 2000 Fall Meeting, San Francisco, CA, December 2000

Lorentzen, K. R., M. D. Looper, and J. B. Blake, "Stormtime Variations in Energetic Protons Seen by SAMPEX and POLAR," poster SH52B-21

AGU 2000 Spring Meeting, Washington, DC, May/June 2000

Nakamura, R., D. N. Baker, S. R. Elkington, M. Hudson, J. B. Blake, M. Looper, and T. Nagai, "ULF Oscillations at the Dawnside Magnetosphere During March 10, 1998 Storm," poster SM41A-04

AGU 1999 Fall Meeting, San Francisco, CA, December 1999

Blake, J. B., R. S. Selesnick, M. D. Looper, J. E. Mazur, M. K. Hudson, X. Li, D. N. Baker, and R. A. Mewaldt, "Observations of Trapped MeV Protons Subsequent to the Arrival of Interplanetary Shocks," poster SM21A-01

Looper, M. D., J. B. Blake, J. F. Fennell, J. E. Mazur, and R. S. Selesnick, "Multi-Spacecraft Observations of Magnetospheric Response to Weakened Solar Wind," paper SM22C-10

AGU 1999 Spring Meeting, Boston, MA, May/June 1999

Blake, J. B., J. E. Mazur, M. D. Looper, R. S. Selesnick, R. A. Mewaldt, Ian McCrea, K. Shiokawa, and K. Yumoto, "Observations of Early Effects of the Large Shock of 4 May 1998 Upon the Earth's Magnetosphere", paper SM41B-07

Kanekal, S. G., G. M. Mason, J. E. Mazur, M. D. Looper, R. A. Leske, and R. A. Mewaldt, "Geomagnetic Cutoffs During Solar Energetic Particle Events: SAMPEX Observations", paper SM51B-07

Looper, Mark D., J. B. Blake, and Richard A. Mewaldt, "Continuing SAMPEX Observations of Shock-Injected Ultrarelativistic Electrons", poster SM52A-11

AGU 1998 Fall Meeting, San Francisco, CA, December 1998

Christian, E. R., T. T. von Rosenvinge, M. D. Looper, J. E. Mazur, C. M. S. Cohen, A. C. Cummings, R. A. Leske, R. A. Mewaldt, E. C. Stone, S. M. Krimigis, M. E. Wiedenbeck, N. Yanasak, J. R. Dwyer, D. C. Hamilton, G. M. Mason, W. R. Binns, and P. L. Hink, "Galactic Cosmic Ray and Anomalous Cosmic Ray Intensity Gradients in the Heliosphere", poster SH41A-11

Blake, J. B., M. D. Looper, J. E. Mazur, D. N. Baker, X. Li, M. K. Hudson, S. G. Kanekal, and R. A. Mewaldt, "Multi-Satellite Observations of the Injections of Energetic Radiation-Belt Particles During May 1998", paper SM11C-01

Looper, M. D., and J. B. Blake, "Near-Equatorial Observations of High-Energy Geomagnetically Trapped Helium Ions", poster SM72A-13

AGU 1998 Western Pacific Geophysics Meeting, Taipei, Taiwan, July 1998

Nakamura, R., M. Isowa, Y. Kamide, D. N. Baker, J. B. Blake, and M. Looper, "Precipitation of Electrons of the Outer Radiation Belt During Geomagnetic Storm", paper SP51C-05 (invited)

AGU 1998 Spring Meeting, Boston, MA, May 1998

Kanekal, S. G., D. N. Baker, X. Li, R. A. Mewaldt, J. B. Blake, M. Looper, R. Selesnick, and J. R. Cummings, "Jovian Electrons Over Earth's Polar Regions", poster SM42B-11

Looper, M. D., J. B. Blake, and R. A. Mewaldt, "SAMPEX Observations of Energetic-Particle Albedo Over the Polar Caps", poster SH31B-02

Mazur, J. E., G. M. Mason, M. D. Looper, and R. A. Mewaldt, "Charge States of Solar Energetic Particles Using the Geomagnetic Cutoff Technique: SAMPEX Measurements in the 1997 November Solar Particle Event", paper SH21D-05

AGU 1997 Fall Meeting, San Francisco, CA, December 1997

Looper, M. D., J. B. Blake, and H. E. Spence, "Observations of Energetic Protons Injected by the January 1997 Magnetic Cloud Event", poster SM31B-02

Nakamura, R., K. Kamei, Y. Kamide, M. Isowa, D. N. Baker, J. B. Blake, and M. Looper, "Storm-Associated Electron Flux Changes Observed by SAMPEX", poster SM31B-10

Thayer, M. R., A. C. Cummings, R. A. Leske, R. A. Mewaldt, E. C. Stone, and M. D. Looper, "A Search for Anomalous Hydrogen at 1 AU with SAMPEX", poster SH11A-16

IAGA 1997 Scientific Assembly, Uppsala, Sweden, August 1997

Li, X., D. N. Baker, M. Temerin, D. Larson, R. P. Lin, E. G. D. Reeves, J. B. Blake, M. Looper, R. Selesnick, and R. A. Mewaldt, "Source of Relativistic Electrons in the Magnetosphere: Present Knowledge and Remaining Questions"

Looper, M. D., J. B. Blake, and H. E. Spence, "Observations of the Response of Radiation-Belt Protons to the January 1997 Magnetic Cloud Event"

AGU 1997 Spring Meeting, Baltimore, MD, May 1997

Li, X., D. N. Baker, M. Temerin, D. Larson, R. P. Lin, E. G. D. Reeves, J. B. Blake, M. Looper, R. Selesnick, and R. A. Mewaldt, "Simultaneous Observations by Multi-Spacecraft of Solar Wind and Outer Radiation Belt Electrons", poster SM31A-11

AGU 1996 Fall Meeting, San Francisco, CA, December 1996

Baker, D. N., X. Li, T. I. Pulkkinen, S. G. Kanekal, M. D. Looper, J. B. Blake, and R. A. Mewaldt, "Detection of Jovian Electrons at High Terrestrial Latitudes: SAMPEX, HEO, and POLAR Results", paper SM72C-10

Leske, R. A., R. A. Mewaldt, D. N. Baker, M. D. Looper, G. M. Mason, J. E. Mazur, and T. T. von Rosenvinge, "Monitoring Changes in the Geomagnetic Cutoff During Large Solar Energetic Particle Events", paper SA72B-03

Li, X., D. N. Baker, M. Temerin, D. Larson, E. G. D. Reeves, J. B. Blake, M. Looper, and S. G. Kanekal,"Effects of Solar Wind Conditions on the Relativistic Electrons in the Magnetosphere", paper SM32D-08

Looper, M. D., J. B. Blake, and R. A. Mewaldt, "SAMPEX Observations of Upgoing Energetic Protons Over the Polar Caps", paper SH41C-08

AGU 1996 Spring Meeting, Baltimore, MD, May 1996

Blake, J. B., M. D. Looper, J. J. Quenby, B. Drolias, E. Keppler, A. C. Cummings, and R. A. Mewaldt, "Ulysses EPAC and Sampex PET Observations of Short-Period Modulation of the GCR", paper SH42B-04

Klecker, B., D. Hovestadt, M. Scholer, J. B. Blake, M. C. McNab, M. D. Looper, and G. M. Mason, "Search for an Energy Dependence of the ACR Ionic Charge State Composition", paper SH42C-03

AGU 1995 Fall Meeting, San Francisco, CA, December 1995

Cummings, J. R., R. A. Mewaldt, R. S. Selesnick, E. C. Stone, J. B. Blake, and M. D. Looper, "MAST Observations of High Energy Trapped Helium Nuclei", paper SM22C-08

Looper, M. D., J. B. Blake, J. R. Cummings, R. A. Mewaldt, and R. S. Selesnick, "Maps of Hydrogen Isotopes at Low Altitudes in the Inner Zone of the Earth's Magnetosphere", paper SM22C-07

Selesnick, R. S., R. A. Mewaldt, J. R. Cummings, M. D. Looper, and J. B. Blake, "Atmospheric Production of Radiation Belt H and He Isotopes," poster SM12A-18

24th. International Cosmic Ray Conference, Rome, Italy, August 1995

Mason, G. M., J. E. Mazur, M. D. Looper, and R. A. Mewaldt, "Charge State Measurements of Solar Energetic Particles Observed with SAMPEX", Proceedings of the XXIV ICRC (Rome), 4, 474 (1995, abstract only), paper SH 5.1.6

IUGG XXI General Assembly, Boulder, CO, July 1995

Kanekal, S., D. N. Baker, J. B. Blake, R. E. Boughner, L. B. Callis, A. C. Cummings, J. R. Cummings, T. L. Garrard, D. C. Hamilton, D. Hovestadt, B. Klecker, M. D. Looper, G. M. Mason, J. E. Mazur, R. A. Mewaldt, M. Scholer, E. C. Stone, and T. T. von Rosenvinge (SAMPEX Collaboration), "The SAMPEX World Wide Web Data and Information System," poster GAA51K-02

AGU 1995 Spring Meeting, Baltimore, MD, May 1995

Cummings, J. R., A. C. Cummings, R. A. Mewaldt, R. S. Selesnick, E. C. Stone, T. T. von Rosenvinge, B. Blake, and M. Looper, "MAST Observations of High Energy Trapped Helium Nuclei," paper SM41B-10

Blake, J. B., M. D. Looper, B. Klecker, and D. Hovestadt, "A Search for Molecular Ions in the Anomalous Cosmic Rays", paper SH32C-07

Kanekal, S. G., D. N. Baker, J. B. Blake, R. E. Boughner, L. B. Callis, A. C. Cummings, J. R. Cummings, T. L. Garrard, D. C. Hamilton, D. Hovestadt, B. Klecker, M. D. Looper, G. M. Mason, J. E. Mazur, R. A. Mewaldt, M. Scholer, E. C. Stone, and T. T. von Rosenvinge, "The SAMPEX World Wide Web Data and Information System", poster SA41A-08

Looper, M. D., J. B. Blake, B. Klecker, and D. Hovestadt, "Trapped Anomalous Cosmic Rays Near the Geomagnetic Cutoff", paper SH42C-10

McCrea, I. W., D. M. Willis, M. D. Looper, J. B. Blake, P. C. Anderson, and B. Klecker, "Correlated Observations of Relativistic Electron Precipitation by EISCAT and SAMPEX", paper SM41B-11

McNab, M., J. B. Blake, M. D. Looper, B. Klecker, and D. Hovestadt, "Calculations of the Stable Trapping of Anomalous Cosmic Rays in Earth's Radiation Belts", poster SM21A-13

AGU 1994 Fall Meeting, San Francisco, CA, December 1994

Blake, J. B., M. D. Looper, D. N. Baker, R. Nakamura, and B. Klecker, "Very High Temporal and Spatial Resolution Measurements of the Precipitation of Relativistic Electrons", paper SM12C-03

Cummings, J. R., R. A. Mewaldt, R. S. Selesnick, E. C. Stone, B. Blake, M. Looper, and T. T. von Rosenvinge, "Further Observations of Trapped High-Energy Helium Isotopes," paper SM12C-10

Looper, M. D., J. B. Blake, B. Klecker, and D. Hovestadt, "SAMPEX HILT Observations of Geomagnetically Trapped Anomalous Cosmic Rays", paper SM12C-12

McCrea, I. W., D. M. Willis, M. D. Looper, J. B. Blake, and B. Klecker, "Correlated Observations of Relativistic Electron Precipitation by EISCAT and SAMPEX", paper SM12C-04

Mason, G. M., J. E. Mazur, M. Looper, and J. R. Cummings, "Charge State Measurements of Solar Energetic Particles Observed with SAMPEX", poster SH21A-22

Selesnick, R. S., J. R. Cummings, R. A. Mewaldt, E. C. Stone, J. B. Blake, and M. D. Looper, "Modeling the Production of Geomagnetically Trapped Helium and Hydrogen Isotopes", paper SM12C-11

AGU 1994 Spring Meeting, Baltimore, MD, May 1994

Blake, J. B., M. Looper, D. N. Baker, B. Klecker, and D. Hovestadt, "Observations of Relativistic Electron Precipitation Bursts by SAMPEX", paper SM12A-02

Looper, M. D., R. A. Mewaldt, J. R. Cummings, R. S. Selesnick, D. N. Baker, and J. B. Blake, "SAMPEX Observations of Deuterium in the Inner Magnetosphere", paper SM12A-05

AGU 1993 Fall Meeting, San Francisco, CA, December 1993

Looper, M. D., R. A. Mewaldt, J. R. Cummings, R. S. Selesnick, D. N. Baker, and J. B. Blake, "Continuing Observations of the Ultrarelativistic Electrons Injected into the Magnetosphere by the SSC of 24 March 1991", paper SM22C-05

AGU 1991 Spring Meeting, Baltimore, MD, May 1991

Looper, M. D., R. S. Selesnick, and E. C. Stone, "Energetic Protons in the Magnetosphere of Neptune", paper SM32F-04

Fred Scarf Memorial Symposium "Magnetospheres of the Outer Planets", Annapolis, MD, August 1990

Looper, M. D., R. S. Selesnick, and E. C. Stone, "Energetic Protons in the Magnetosphere of Neptune"

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