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University of Southern California


Publications
 
61. [html] [pdf] The Ultraviolet Absorption Spectrum of Co - Applicatons to Planetary Atmospheres; WHITE-H-P*; HUA-X-M; CALDWELL-J; CHEN-F-Z; JUDGE-D-L; WU-C-Y-R;JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, vol. 98, issue E3, (MAR 25, 1993) : pp. 5491-5497
60. [html] [pdf] Correction of SOHO CELIAS/SEM EUV Measurements Saturated by Extreme Solar Flare Events L.V. Didkovsky, D.L. Judge, A.R. Jones, S. Wieman, B.T. Tsurutani, and D. McMullin Astron. Nachr / AN , 328, 36-40, (2007)
59. [html] [pdf] [pdf]SDO EVE ESP Radiometric Calibration and Results, L. Didkovsky, D. Judge, S. Wieman, M. Harmon, T. Woods, A. Jones, P. Chamberlin, D. Woodraska, F. Eparvier, D. McMullin, M. Furst, and R. Vest, in SPIE Proc. 6689, submitted, (2007)
58. [html] [pdf] [pdf]A light-weight optics-free EUV spectrometer with substantially improved efficiency and spectral resolution, L. Didkovsky, D. Judge, S. Wieman, in SPIE Proc.6689, submitted, (2007)
57. [html] [pdf][pdf] Micro-Light Spectrometer: Design, Development, and Tests S. Wieman, L. Didkovsky, D. Judge, A. Jones, M. Harmon, in SPIE Proc., submitted, (2007)
56. [html] [pdf] SEP temporal fluctuations related to extreme solar flare events detected by SOHO/CELIAS/SEM, L.V. Didkovsky, D.L. Judge, A.R. Jones, S. Wieman, M. Harmon, and W.K. Tobiska. Bull of the 45th AIAA Aerospace Meeting, in print, (2007)
55. [html] [pdf] High-Energy Protons Associated with Lift off of a Coronal Mass Ejection L. Kocharov, O. Saloniemi, J. Torsti, E. Riihonen, J. Lehti, K.-L. Klein, L. Didkovsky, D.L. Judge, A.R. Jones, and R. Pyle. Ap.J., 659, 780-787, (2007)
54. [html] [pdf] Measuring Proton Energies and Fluxes Using EIT (SOHO) CCD Areas Outside the Solar Disk Images, L.V. Didkovsky, D.L. Judge, A.R. Jones, E.J. Rhodes, Jr., and J.B. Gurman. Astronomishe Nachrichten / AN, 327, 314-320, (2006)
53. [html] [pdf] An Extreme Ultraviolet Optics-Free Spectrometer with Improved Spectral Resolution and High Signal-to-Noise Ratio, Leonid V Didkovsky, Darrell L Judge, Andrew R Jones. in SPIE Proc. 5898, 1I1-1I8, (2005)
52.. [html] [pdf] Evaluation of the amplitude and restoring the temporal profile of the Bastille Day Solar Flare in the 19.5 nm from the saturated EIT images, Didkovsky, L. V, Jones, A. R., Judge, D. L.,Gurman, Tsurutani, B. T. AAS Bull. Vol 36, No. 5, p. 1411-1412, (2005)
51. [html] [pdf] An Extreme Ultraviolet Spectrometer, Leonid V Didkovsky, Darrell L Judge, Andrew R Jones. in SPIE Proc. 5677, 141-152, (2005)
50. [html] [pdf] A Search for Relativistic High-Energy Protons From the Extreme Solar Flares of 2000-03 Didkovsky, L. V, Jones, A. R., Judge, D. L., Gurman, J., Gangopadhyay, P., Rhodes, E., Tsurutani, B. T., Joint SPA Assembly, New Orleans, submitted, (2005)
49. [html] [pdf] The October 28, 2003 extreme EUV solar flare and resultant extreme ionospheric effects: Comparison to other Halloween events and the Bastille Day event. B. T. Tsurutani, D. L. Judge, F. L. Guarnieri, P. Gangopadhyay, A. R. Jones, J. Nuttall, G. A. Zambon, L. Didkovsky, A. J. Mannucci, B. Iijima, R. R. Meier, T. J. Immel, T. N. Woods, S. Prasad, L. Floyd, J. Huba, S. C. Solomon, P. Straus, and R. Viereck, GEOPHYSICAL RESEARCH LETTERS, VOL. 32, L03S09, (2005)
48. [html] [pdf] Comparison of Voyager 2 and Pioneer 10 Ly a data with model calculations and possible implications, The American Geophysical Union 2004 Spring Meeting, Montreal, Canada, June 17-21, 2004, with P. Gangopadhyay, V. Izmodenov, and M. Gruntman.
47. [html] [pdf] Interpretation of Pioneer 10 and Voyager 2 Ly Alpha Data: First Results, Presented in World Space Congress, Houston, USC October 14 – 18, 2002, with P. Gangopadhyay, V. Izmodenov, E. Quemerais, and M. Gruntman.
46. [html] [pdf] EUV Photolysis of CH4 + H2O Mixed Ice Systems at 10 K, The 34th Annual Meeting of Division of Planetary Sciences, Birmingham, Alabama, October 6 - 10, 2002, with C.Y.R. Wu, B. M. Cheng.
45. [html] [pdf] Atmospheric Pressure-Induced Effects in the VUV Absorption Spectrum of C2H2, The 34th Annual Meeting of Division of Planetary Sciences, Birmingham, Alabama, October 6 - 10, 2002, with F.Z. Cen, and C.Y.R. Wu.
44. [html] [pdf] Interstellar Pioneer 10 EUV Data: Possible Constraints on the Local Interstellar Parameters, Presented in SOLAR WIND 10, X Congresso Internazionale sul Vento Solare, Palazzo dei Congressi, Pisa, Italy, June 16 – 21, 2002, with V. Izmodenov, P. Gangopadhyay, and M. Gruntman.
43. [html] [pdf] EUV Photolysis in Ice Analogs, The American Geophysical Union 2002 Spring Meeting, Washington, DC., May 28 - 31, 2002, EOS Trans. AGU, 83 (19), Spring Meet. Suppl.., Abstract P52A-05, 2002, with C.Y.R. Wu, B.M. Cheng, T.S. Yih, C.S. Lee, and W.H. Ip.
42. [html] [pdf] Variations In Solar Euv Flux As Measured By SOHO/CELIAS/SEM, Proc. of the SOHO 11 Workshop, ed A. Wilson, ESA SP-508 (2002), with J.M. Pap, D. McMullin and L. Floyd.
41. [html] [pdf] Measuring The Ionization Rate Of In-Flowing Interstellar Helium With The SOHO/CELIAS/SEM, Proc. of the SOHO 11 Workshop, ed A. Wilson, ESA SP-508, 489. (2002), with D.R. McMullin, E. Phillips, E. Moebius, P. Bochsler, P. Wurz, M. Hilchenbach and F. Ipavich.
40. [html] [pdf] Extreme Ultraviolet Photon-Induced Chemical Reactions in the C2H2 - H2O Mixed Ices at 10 K, Icarus,. 156, 456-473 (2002), with C.Y.R. Wu, B-M. Cheng, W-H. Shih, T-S. Yih, and W.H. Ip.
39. [html] [pdf] The SOHO CELIAS/SEM EUV Database From SC23 Minimum to the Present, Adv. Space Res., 29, 1963 (2002), with H.S. Ogawa, D.R. McMullin, P. Gangopadhyay, and J.M. Pap.
38. [html] [pdf] Ionospheric and Dayglow Responses to the Radiative Phase of the Bastille Day Flare, Geo. Res. Lett., 29, 10, 99-1 – 99-4  (2002), with R.R. Meier, H.P. Warren, A.C. Nicholas, J. Bishop, J.D. Huba, D.P. Drob, J.L. Lean, J.M. Picone, J.T. Mariska, G. Joyce, S.E. Thonnard, K.F. Dymond, and S.A. Budzien
37. [html] [pdf] Solar Extreme Ultraviolet and X-ray Irradiance Variations, accepted ISCS 2001 (AGU Monograph), (2001), with T. Woods, L.W. Acton, S. Bailey F. Eparvier. H. Garcia, J. Lean, J.T. Mariska, D. McMullin, G. Schmidtke, S.C. Solomon, W.K. Tobiska, H.P. Warren, and R. Viereck.
36. [html] [pdf] Pioneer 10 Lyman Alpha Data and Very Local Interstellar Medium (VLISM) Neutral Hydrogen Density, The American Geophysical Union 2001 Fall Meeting, San Francisco, CA., December 10 - 14, 2001, with P. Gangopadhyay, V. Izmodenov, M. Gruntman, and J. Holberg.
35. [html] [pdf] Analysis of the Rovibronic Structure of N2 in the 91.6 nm Region, The American Geophysical Union 2001 Fall Meeting, San Francisco, CA., December 10 - 14, 2001, AGU Trans. Eos, 82, No. 19, S293 (2001), with C.Y.R. Wu.
34. [html] [pdf] EUV-VUV Photon-Induced Chemical Reactions in Mixed Ices at 10 K, The 33rd Annual Meeting of Division of Planetary Sciences, New Orleans, Louisiana, November 26 - December 1, 2001, with C.Y.R. Wu, B.-M. Cheng, W.-H. Shih, T.-S. Yih, and W.H. Ip.
33. [html] [pdf] Infrared Absorbance Study in the C2H2 - H2O Mixed Ices Under the High Flux Synchrotron Radiation Irradiation, The SRRC Seventh Users’ Meeting and Workshop, Hsinchu, Taiwan, October 31 - November 2, 2001, with W.-H. Shih, T.-S. Yih, W. H. Ip. B.-M. Cheng, and C.Y.R. Wu.
32.. [html] [pdf] Space Weather Observations Using the SoHO CELIAS Complement of Instruments, J. Geophys. Res., 106, 29,963 (2001), with D.R. McMullin, P. Gangopadhyay, H.S. Ogawa, F.M. Ipavich, A.B. Galvin, E. Möbius, P. Bochsler, P. Wurtz, M. Hilchenbach, H. Grünwaldt, D. Hovestadt, B. Klecker, and F. Gliem.
31.. [html] [pdf] The Mg II Index: A Proxy for Solar EUV, Geo. Res. Lett., 28, 1343 (2001), with R. Viereck, L. Puga, D. McMullin, M. Weber, and W.K. Tobiska.
30. [html] [pdf] High-Temperature, High-Resolution Photoabsorption Cross Sections of O2 in the 108.5 nm Region, J. Geophys. Res., 106, 5599 (2001), with C.Y.R. Wu, T. Hung, and T. Matsui.
29. [html] [pdf] Measurements of Temperature-Dependent Absorption Cross Sections of C2H2 in the VUV-UV Region, J. Geophys. Res., 106, 7629 (2001), with C.R.Y. Wu, and F.Z. Chen
28.. [html] [pdf] Calibration of An Extreme-Ultraviolet Transmission Grating Spectrometer with Synchrotron Radiation, Applied Optics, 40, 1623 (2001), with J.F. Seely, C.M. Brown, G.E. Holland, F. Hanser, J. Wise, J.L. Weaver, R. Korde, R.A. Viereck, and R. Grubb
27. [html] [pdf] High-temperature, high-resolution photoabsorption cross sections of O/sub 2/ in the 108.5-nm region; Wu, C.Y.R.; Hung, T.; Judge, D.L.; Matsui, T; Journal of Geophysical Research (April 1, 2001), vol.106, no.A4 p. 5599-603
26. [html] [pdf] Temperature dependent photoabsorption cross sections of allene and methylacetylene in the VUV-UV region; Chen, F.Z.; Judge, D.L.; Wu, C.Y.R.; Chemical Physics(October 1, 2000), vol.260, no.1-2 p. 215-23
25. [html] [pdf] Direct evidence of the interstellar gas flow velocity in the pickup ion cut-off as observed with SOHO CELIAS CTOF; Mobius, E.; Litvinenko, Y.; Grunwaldt, H.; Aellig, M.R.; Bogdanov, A.; Ipavich, F.M.; Bochsler, P.; Hilchenbach, M.; Judge, D.; Klecker, B.; Lee, M.A.; Ogawa, H.; Geophysical Research Letters (October 15, 1999), vol.26, no.20 p. 3181-4
24. [html] [pdf] Low and room temperature photoabsorption cross sections of NH/sub 3/ in the UV region; Chen, F.Z.; Judge, D.L.; Wu, C.Y.R.; Caldwell, J. ; Planetary and Space Science (Jan.-Feb. 1999), vol.47, no.1-2 p. 261-6
23. [html] [pdf] First solar EUV irradiances obtained from SOHO by the CELIAS/SEM; Judge, D.L.; McMullin, D.R.; Ogawa, H.S.; Hovestadt, D.; Klecker, B.; Hilchenbach, M.; Mobius, E.; Canfield, L.R.; Vest, R.E.; Watts, R.; Tarrio, C.; Kuhne, M.; Wurz, P.; Sol. Phys. (Netherlands), Solar Physics (Jan. 1998), vol.177, no.1-2 p. 161-73
22. [html] [pdf] Direct measurements of the helium photoionization rate from sounding rockets; Ogawa, H.S.; Phillips, E.; Judge, D.L.; Journal of Geophysical Research (June 1, 1997), vol.102, no.A6 p. 11557-66
21. [html] [pdf] Studies of Fluorescence from Photoexcitation of N2 and CO2 in the 28-100 eV Region; WU-C-Y-R; CHEN-F-Z; HUNG-T; JUDGE-D-L; Journal of Electron Spectroscopy and Related Phenomena, 80, (1996): pp.13-16
20. [html] [pdf] High, Room and Low Temperature Photoabsorption Cross-Sections of CS2 in the 1800-2300 Angstrom Region; CHEN-F-Z*; WU-C-Y-R; GEOPHYSICAL RESEARCH LETTERS, vol. 22, issue 16, (AUG 15, 1995) : pp. 2131-2134
19. [html] [pdf] Fluorolescence Excitation-Function of N11200-Angstrom A and Cross-Sections for Fluorescence Photon-Photoion Coincidence Produced Through Photoexcitation of N2; WU-C-Y-R; JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, vol. 99, issue A5, (MAY 1, 1994) : pp. 8971-897
18. [html] [pdf] Observation of Multiphoton Generated Violet Emissions in Sodium Vapor; WU-C-Y-R*; CHEN-F-Z; JUDGE-D-L; JOURNAL OF CHEMICAL PHYSICS, vol. 99, issue 3, (AUG 1, 1993) : pp. 1530-1536
17. [html] [pdf] Velocity Distributions of Hydrogen Atoms andHydroxil Radicals Produced Through Photodissociation of Water; WU-C-Y-R*; CHEN-F-Z; JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, vol. 98, issue E4, (APR 25, 1993) : pp. 7415-7435
16. [html] [pdf] High-Order Stimulated Electronic Raman Scattering From Lithium Vapor; FAHR-H-J*; RUCINSKI-D; JUDGE-D-L; ASTRONOMY AND ASTROPHYSICS, vol. 268, issue 2, (FEB, 1993) : pp. 792-804
15. [html] [pdf] Solar Photoionization as a Loss Mechanism of Neutral Interstellar Hydrogen in Interplanetary Space; WU-F-M; GANGOPADHYAY-P; JUDGE-D-L; JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, vol. 100, issue A3, (MAR 1, 1995) : pp. 3481-3493
14. [html] [pdf] An Optics Free Spectrometer for the Extreme - Ultraviolet; JUDGE-D-L; DAYBELL-M-D; HOFFMAN-J-R; GRUNTMAN-M-A; OGAWA-H-S; SAMSON-J-A-R; NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, vol. 347, issue 1-3, (AUG 11, 1994) : pp. 472-474
13. [html] [pdf] Normal Incidence Spectrophotometer With High-Density Transmission Grating Technology High-Efficiency Silicon Photodiodes for Absolute SolarExtreme-Ultraviolet Irradiance Measurements; OGAWA-H-S; MCMULLIN-D-R; JUDGE-D-L; KORDE-R; OPTICAL ENGINEERING, vol. 32, issue 12, (DEC, 1993) : pp. 3121-3125
12. [html] [pdf] Solar-Driven Neutral Density Waves; BLUM-P; GANGOPADHYAY-P; OGAWA-H-S; JUDGE-D-L; ASTRONOMY AND ASTROPHYSICS, vol. 272, issue 2, (MAY, 1993) : pp. 549-554
11. [html] [pdf] SoURCE - The Solar Ultraviolet-Radiation and Correlative Emission Mission; SMITH-P-L; LEAN-J-L; CHRISTENSEN-A-B; HARVEY-K-L; JUDGE-D-L; MOORE-R-L; TORR-M-R; WOODS-T-N; METROLOGIA, vol. 30, issue 4, (OCT, 1993) : pp. 275-277
10. [html] [pdf] Time-Variable and Space-Variable Structures of Interstellar Gas Passing Over the Heliosphere - Consequences for the Interplanetary UV ResonanceGlow; FAHR-H-J*; RUCINSKI-D; JUDGE-D-L; ASTRONOMY AND ASTROPHYSICS, vol. 268, issue 2, (FEB, 1993) : pp. 792-804
9. [html] [pdf] Solar Photoionization as a Loss Mechanism of Neutral Interstellar Hydrogen in Interplanetary Space; OGAWA-H-S*; WU-C-Y-R; GANGOPADHYAY-P; JUDGE-D-L; JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, vol. 100, issue A3, (MAR 1, 1995) : pp. 3455-3462
8. [html] [pdf] Pioneer-10 Ultraviolet Photometer Observations of Jovian UV Emission in 1973; WU-F-M; GANGOPADHYAY-P; JUDGE-D-L; JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, vol. 100, issue A3, (MAR 1, 1995) : pp. 3481-3493
7. [html] [pdf] An Optics Free Spectrometer For The Extreme-Ultraviolet; JUDGE-D-L; DAYBELL-M-D; HOFFMAN-J-R; GRUNTMAN-M-A; OGAWA-H-S*; SAMSON-J-A-R; NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, vol. 347, issue 1-3, (AUG 11, 1994) : pp. 472-474
6. [html] [pdf] Total Ion Desorption Yields of H2O, D2O, CH3OH, CD3OD and Water-Methanol Mixed Ices Irradiated at 584 Angstrom; WU-C-Y-R; YANG-B-W; JUDGE-D-L; PLANETARY AND SPACE SCIENCE, vol. 42, issue 4, (APR, 1994) : pp. 273-277
5. [html] [pdf] Rare-Gas Optics-Free Stable Extreme-Ultraviolet Photon Spectrometer for Solar-System Studies; DAYBELL-M-D*; GRUNTMAN-M-A; JUDGE-D-L; SAMSON-J-A-R; OPTICAL ENGINEERING, vol. 33, issue 2, (FEB, 1994) : pp. 445-450
4. [html] [pdf] Normal Incidence Spectrophotometer WithHigh-Density Transmission Grating Technology and High-Efficiency Silicon Photodiodes for Absolute SolarExtreme-Ultraviolet Irradiance Measurements; OGAWA-H-S; MCMULLIN-D-R; JUDGE-D-L; KORDE-R; OPTICAL ENGINEERING, vol. 32, issue 12, (DEC, 1993) : pp. 3121-3125
3. [html] [pdf] Heliospheric Hydrogen Beyond 15 AU - Evidence for a Termination Shock; HALL-D-T*; SHEMANSKY-D-E; JUDGE-D-L; GANGOPADHYAY-P; GRUNTMAN-M-A; JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, vol. 98, issue A9, (SEP 1, 1993) : pp. 15185-15192
2. [html] [pdf] Photoabsorption and Photoionization Cross-Sections of Gas-Phase GEH-4 and Rydberg Structures of GEH-4 and SIH-4; WU-C-Y-R*; CHEN-F-Z; JUDGE-D-L; JOURNAL OF CHEMICAL PHYSICS, vol. 99, issue 3, (AUG 1, 1993) : pp. 1530-1536
1. [html] [pdf] Solar Driven Neutral Intensity Waves; BLUM-P; GANGOPADHYAY-P; OGAWA-H-S; JUDGE-D-L;ASTRONOMY AND ASTROPHYSICS, vol. 272, issue 2, (MAY, 1993) : pp. 549-554
 
 
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