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Murray Darrach's Picture
Address:
Jet Propulsion Laboratory
M/S 121-104
4800 Oak Grove Drive
Pasadena, CA 91109
Phone:
818.393.2689
Fax:
818.393.1899
Email:

Murray Darrach

Education
  • B.Sc., Physics, University of Windsor (1984)
  • M.Sc., Physics, University of Windsor (1986)
  • Ph.D., Physics, University of Windsor (1990)
Research Interests
  • Miniaturization of mass spectrometers, electron and ion optics, and electron sources
  • Trace chemical detection (sub parts-per-trillion)
  • Electron-ion and electron-atom collision physics, specifically negative mode ionization and cross-section measurements
Professional Experience
  • Jet Propulsion Laboratory, Senior Technical Staff Atomic and Molecular Collisions Group: Astrophysics and Space Sciences Section (1993 - Present)
Selected Awards
  • NASA Space Act Award (Major Award), Design and Implementation of a Miniature Mass Spectrometer (2003)
  • NASA Space Act Award (Exceptional Award), Reversal Electron Attachment Detection Technology (2002)
  • JPL Technical Excellence Award, Trace Gas Analyzer (2000)
  • JPL Technology and Applications Programs Award, Mobile Underwater Debris Survey System (1998)
Selected Publications
  1. "Low-Energy Dissociative Electron Attachment to H2, CO, O2, and NO: Experimental Results in a Trochoidal Ion Monochromator and Comparisons With Electron and Ion Trajectory Calculations," O. J. Orient, M. R. Darrach, and A. Chutjian, Phys. Rev. A (submitted, 6/04).
  2. "Miniaturized GC/MS Instrumentation for In Situ Measurements: Micro Gas Chromatography Coupled with Miniature Quadrupole Array and Paul Ion Trap Mass Spectrometers", P. M. Holland, A. Chutjian, M. R. Darrach, and O. J. Orient, Proc. SPIE 4878, 1 (2003) (ed G. H. Bearman and P. M. Beauchamp, Bellingham, WA).
  3. "Parts-per-Billion PCB Detection in Complex Matrices," M.R. Darrach, B. Shortt, and A. Chutjian, Anal. Chem. (06/2004, in preparation)
  4. "Miniaturized system of a gas chromatograph coupled with a Paul ion trap mass spectrometer," B. J. Shortt, M. R. Darrach, P. M. Holland, and A. Chutjian, J. Mass Spectrom. (submitted 4/04).
  5. "Miniaturized Gas Chromatograph-Paul Ion Trap System: Applications To Environmental Monitoring," B. J. Shortt, M. R. Darrach, Paul M. Holland, and A. Chutjian, SAE Technical Paper Series 2005-00-0000 (SAE, Warrendale, PA, in press).
  6. "Trace Gas Analyzer for Extra-Vehicular Activity," T. Abbasi, M. Christensen, M. Villemarette, M. Darrach, and A. Chutjian, SAE Technical Paper Series 2001-10-2405 (SAE, Warrendale, PA 2001).
  7. "Low Energy Electron Attachment to SF6 at sub-meV Resolution using a New, Tunable Laser Photoelectron Method," P-T. Howe, A. Kortyna, M. R. Darrach, and A. Chutjian, Phys. Rev. A 63, 042706 (2001).
  8. "A Miniature Quadrupole Mass Spectrometer Array and GC for Space Flight: Astronaut EVA and Cabin-Air Monitoring," A. Chutjian, M. R. Darrach, V. Garkanian, S. P. Jackson, T. D. Molsberry, O. J. Orient, D. Karmon, P. M. Holland, and D. Aalami, SAE Technical Paper Series 2000-01-2300 (SAE, Warrendale, PA 2000).
  9. "High Resolution Study of Xenon Autoionization Using Direct Vacuum-Ultraviolet Laser Excitation," A. Kortyna, M. R. Darrach, P-T. Howe, and A. Chutjian, J. Opt. Soc. Am. B 17, 1934 (2000).
  10. "Trace Explosives Signatures from World War II Unexploded Undersea Ordnance," M. R. Darrach, A. Chutjian and G. A. Plett, Env. Sci. Techn. 32, 1354 (1998).

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