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 Planetary Ices: People
Paul Johnson's Picture
Address:
Jet Propulsion Laboratory
M/S 183-601
4800 Oak Grove Drive
Pasadena, CA 91109
Phone:
818.393.4749
Fax:
818.354.5148
Email:

Paul Johnson
Group Supervisor

Education
  • B.Sc.(honors), Physics, University of Manitoba, Winnipeg MB, Canada (1994)
  • Ph. D., Physics, University of Manitoba, Winnipeg MB, Canada (1999)
Research Interests
  • Physics and chemistry of planetary ices
  • Electron energy loss spectroscopy and electron impact induced emission spectroscopy involving atomic and molecular species relevant to planetary atmospheres and astrophysical environments.
  • Development of instrumentation for in situ detection and analysis of inorganic and organic compounds on planetary bodies
Professional Experience
  • Jet Propulsion Laboratory, California Institute of Technology, Science Division (2000-Present)
    • Supervisor, Planetary Ices Group (2008-present)
    • Research Scientist: Advanced Instrumentation and Spectroscopy Group (2005-present)
    • Scientist: Advanced Instrumentation and Spectroscopy Group (2003-2005)
    • National Research Council Postdoctoral Research Associate at JPL (2000-2003)
    • Caltech Postdoctoral Scholar at JPL (2000)
  • University of Manitoba, Postdoctoral Scholar (1999-2000)
Selected Awards
  • NASA Group Achievement Award Electron Collisions Team (2011)
  • JPL Lew Allen Award for Excellence "in scientific research of atomic and molecular physics, the physics and chemistry of planetary ices, and in situ instrument development" (2007)
  • National Research Council, Resident Research Fellowship (January 2001-April 2003)
  • University of Manitoba Students Union (UMSU) Scholarship (1997)
  • University of Manitoba Graduate Fellowship, Ph.D. (1995-1999)
  • University of Manitoba Graduate Fellowship, M.Sc. (1994-1995)
  • Natural Sciences and Engineering Research Council (NSERC) Summer Research Award (1992, 1993, 1994)
  • Harold R. Coish Memorial Scholarship (1991)
  • Canada Scholarship (1990-1994)
Selected Publications
  1. R. Hodyss, H. R. Howard, P. V. Johnson, J. D. Goguen, and I. Kanik, Formation of Radical Species in Photolyzed CH4:N2 Ices, Icarus, 214, 748-753 (2011).
  2. P. V. Johnson, R. Hodyss, D. K. Bolser, R. Bhartia, A. L. Lane, and I. Kanik, Ultraviolet-Stimulated Fluorescence and Phosphorescence of Aromatic Hydrocarbons in Water Ice, Astrobiology, 11, 151-156 (2011), DOI: 10.1089/ast.2010.0568
  3. P. V. Johnson, R. Hodyss, K. Tang, W. B. Brinckerhoff, R. D. Smith, The laser ablation ion funnel: Sampling for in situ mass spectrometry on Mars, Planetary and Space Science, 59, 387-393 (2011), doi:10.1016/j.pss.2011.01.004
  4. J. A. Young, C. P. Malone, P. V. Johnson, J. M. Ajello, X. Liu, and I. Kanik, Lyman-Birge-Hopfield emissions from electron impact excited N2, Journal of Physics B: Atomic, Molecular and Optical Physics, 43(13): 135201 (16pp) (2010).
  5. X. Liu, P. V. Johnson, C. P. Malone, J. A. Young, and I. Kanik, Kinetic Energy Distribution of H(1s) from H2 X 1Σ +g 3Σ+g Excitation and Lifetimes and Transition Probabilities of a 3Σ +gAstrophysical Journal, 716, 701-711 .(2010).
  6. P. V. Johnson, J. A. Young, C. P. Malone, M. A. Khakoo, X Liu and I. Kanik, Electron impact processes in nitrogen rich atmospheres of the outer solar system, Journal of Physics: Conference Series, 204(1): 012003 (5pp) (2010).
  7. R. Hodyss, C. D. Parkinson, P. V. Johnson, J. V. Stern, J. D. Goguen, Y. L. Yung, and I. Kanik, Methanol on Enceladus, Geophysical Research Letters, 36, L17103 (3pp) (2009).
  8. A. S. Weber, R. Hodyss, P. V. Johnson, K. Willacy, and I. Kanik, Hydrogen-deuterium exchange in photolyzed methane-water ices, The Astrophysical Journal, 703 1030-1033 (2009).
  9. X. Liu, P. V. Johnson, C. P. Malone, J. A. Young, D. E. Shemansky and I. Kanik, Electron impact excitation and emission cross section of the H2 B' 1Σ+u, and D 1Πu states and rotational dependence of photodissociation cross sections of the B' 1Σ+uand D 1Πu continua, Journal of Physics B: Atomic, Molecular and Optical Physics, 42, 185203 (13pp) (2009).
  10. J. A. Young, C. P. Malone, P. V. Johnson, X. Liu and I. Kanik, Dissociative Excitation of NO2 by Electron Impact, Journal of Physics B: Atomic, Molecular and Optical Physics, 42, 185201 (10pp) (2009).
  11. C. P. Malone, P. V. Johnson, I. Kanik, B. Ajdari, S. S. Rahman, S. S. Bata, A. Emigh, and M. A. Khakoo, Electron Impact Excitation of Molecular Nitrogen. II. Vibrationally-Resolved Excitation of the C3Πu (v') State, Physical Review A: Atomic, Molecular, and Optical Physics, 79, 032705, 1-9 (2009).
  12. C. P. Malone, P. V. Johnson, I. Kanik, B. Ajdari, and M. A. Khakoo, Electron-Impact Excitation of Molecular Nitrogen. I. Excitation of the C 3Πu, E' 3Σ+g, and a" 1Σ+g States, Physical Review A: Atomic, Molecular, and Optical Physics, 79, 032704, 1-16 (2009).
  13. R. Hodyss, P. V. Johnson, J. V. Stern, J. D. Goguen, and I. Kanik, Photochemistry of Methane-Water Ices, Icarus, 200, 338-342 (2009).
  14. *J. W. McConkey, C. P. Malone, P. V. Johnson, C. Winstead, V. McKoy, and I. Kanik, Electron Impact Dissociation of Oxygen-Containing Molecules - A Critical Review, Physics Reports, 466, 1-103 (2008).
  15. R. P. Hodyss, J. D. Goguen, P. V. Johnson, C. Campbell, and I. Kanik, Release of N2, CH4, CO2, and H2O from surface ices on Enceladus, Icarus, 197, 152-156 (2008).
  16. C. P. Malone, P. V. Johnson, J. W. McConkey and I. Kanik Cross sections for the O II (83.4 nm) emission from electron impact on O2, Journal of Geophysical Research: Space Physics. 113, A06309, doi:10.1029/2008JA013160 (2008).
  17. C. P. Malone, P. V. Johnson, J. W. McConkey, J. M. Ajello, and I. Kanik, Dissocitative Excitation of N2O by Electron-Impact, Journal of Physics B: Atomic, Molecular, and Optical Physics, 41 095201 (9pp) (2008) .
  18. H. Kim, H. I. Kim, P. V. Johnson, L. W. Beegle, J. L. Beauchamp ,W. A. Goddard, and I. Kanik, Ion Mobility Study of Choline and Other Ammonium Cations in N2: Experimental and Theoretical Investigations of Mass-Mobility Correlation, Analytical Chemistry, 80, 1928-1936 (2008).
  19. R. Hodyss, P. V. Johnson, G. E. Orzechowska, and I. Kanik, Carbon dioxide segregation in mixed CO2:H2O ices, Icarus, 194, 836-842 (2008).
  20. X. Liu, D. E. Shemansky, C. P. Malone, P. V. Johnson, J. M. Ajello, I. Kanik, A. N. Heays, B. R. Lewis, S. T. Gibson, and G. Stark, Experimental and Coupled-Channels Investigation of the Radiative Properties of the N2c'4 1Σ+u-X1Σ+g Band System, Journal of Geophysical Research-Space Physics 113, A02304 (2008).

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