1 to 10 of 79 Results
Feb 1, 2004
Smith, S. J.; Cadez, I.; Chutjian, A.; Niimura, M., 2004, "Measurement of the metastable lifetime for the 2s^2 2p^2 ^1So level in O^2+", https://hdl.handle.net/2014/7995, Astrophysical journal, vol. 602, pp. 1075-1078, JPL Open Repository
The radiative lifetime of the 1S0 level was found to be 540 ± 27 ms. This is in good agreement with a previous measurement and with a number of theoretical calculations. Metastable lifetimes, when combined with collisional excitation rates, can provide a diagnostic for electron d... |
Jan 1, 2003
Smith, S. J.; Lozano, J. A.; Tayal, S.S.; Chutjian, A., 2003, "Electron excitation cross sections for the 2s^2 2p ^2p^o-2s2p^2 ^4p and 2s2p^2 ^2D transitions in O^3+", https://hdl.handle.net/2014/7886, Physical review A vol. 68, pp. 062708-062713, JPL Open Repository
Comparison is made with results of new calculations in a 25-state R-matrix theory and with results in a previous eight-state R-matrix calculation. The presence of rich resonance structure is confirmed in both experiment and theory. |
Sep 17, 2002
Chutjian, A.; Darrach, M.; Orient, O.; Holland, P., 2002, "Miniature quadrupole-array and paul trap mass spectrometers with miniature front-end gas chromatographs", https://hdl.handle.net/2014/10158, ['Environmental Sentinels 2002', 'Johnson SFC, TX, USA'], JPL Open Repository
No abstract provided |
Mar 11, 2002
Jurewicz, S. R.; Wilcox, J. Z.; George, T.; Chutjian, A.; Feldman, J.; Douglas, S.; Hanchar, J. M., 2002, "Electron-induced luminescence and x-ray spectrometer (ELXS) system for life", https://hdl.handle.net/2014/37077, ['33rd Lunar and Planetary Science Conference', 'League City, Texas, USA'], JPL Open Repository
The search for signatures of life/water on planetary bodies, like most planetary exploration, proceeds on a series of reducing scales from global to a few centimeters. Although planetary observing satellites can look at the big picture, it will be up to small roving vehicles carr... |
Jul 18, 2001
Chutjian, A.; Cadez, I.; Greenwood, J. B.; Smith, S. J.; Niimura, M., 2001, "Absolute cross sections for single electron capture IN***sup3***He***sup2+*** impact on CO", https://hdl.handle.net/2014/12424, ['International Conference on Photonic, Electronic, and Atomic Collisions', 'Santa Fe, New Mexico, USA'], JPL Open Repository
No abstract provided |
Jul 18, 2001
Chutjian, A.; Cadez, I.; Smith, S. J.; Niimura, M.; Greenwood, J. B., 2001, "Measurement of absolute electron capture cross sections for 7 X q KeV Fe***supq+*** ions in collisions with CO***sub2***", https://hdl.handle.net/2014/12446, ['International Conference on Photonic, Electronic, and Atomic Collisions', 'Santa Fe, New Mexico, USA'], JPL Open Repository
No abstract provided |
Jul 18, 2001
Chutjian, A.; Smith, S. J.; Cadez, I.; Niimura, M., 2001, "Measurement of the level lifetimes for 2s***sup2***2p***sup2***sup1***S***sub0*** MI trnasition of O***sup2+*** at 323 nm", https://hdl.handle.net/2014/12427, ['International Conference on Photonic, Electronic, and Atomic Collisions', 'Santa Fe, New Mexico, USA'], JPL Open Repository
No abstract provided |
Jul 18, 2001
Chutjian, A.; Orient, O. J.; Chutjian, A., 2001, "A compact, high-resolution Paul ion trap mass spectrometer with electron-impact ionization", https://hdl.handle.net/2014/12425, ['International Conference on Photonic, Electronic, and Atomic Collisions', 'Sante Fe, New Mexico, USA'], JPL Open Repository
No abstract provided |
Jul 18, 2001
Chutjian, A.; Smith, S. J.; Cadez, I.; Niimura, M., 2001, "Electron excitation cross sections for the 2s***sup2***sup2*** 3P***sub0,1,2 --> 2s***sup2***2p***sup2*** 1D***sub2*** transition in O***2+***", https://hdl.handle.net/2014/12447, ['International Conference on Photonic, Electronic, and Atomic Collisions', 'Santa Fe, New Mexico, USA'], JPL Open Repository
No abstract provided |
Jul 18, 2001
Chutjian, A.; Niimura, M.; Smith, S. J.; Cadez, I., 2001, "Electron excitation cross sections for the 3p***sup5***sup2***P***sup0***sub1/2*** fine structures transition in Fe***sup9+***", https://hdl.handle.net/2014/12444, ['International Conference on Photonic, Electronic, and Atomic Collisions', 'Santa Fe, New Mexico, USA'], JPL Open Repository
No abstract provided |