Radiative cooling of C{sub 7}{sup −}
- Department of Physics, University of Gothenburg, 41296 Gothenburg (Sweden)
- Applied Physics, Chalmers Technical University, Gothenburg (Sweden)
- Department of Chemistry, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachiouji-shi, Tokyo 192-0397 (Japan)
- Department of Physics, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachiouji-shi, Tokyo 192-0397 (Japan)
- Atomic, Molecular and Optical Physics Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198 (Japan)
The spontaneous and photo-induced neutralization of C{sub 7}{sup −} produced in a laser ablation source was measured in an electrostatic storage ring. The measurements provide three independent determinations of the radiative cooling of the ions, based on the short time spontaneous decay and on the integrated amplitude and the shape of the photo-induced neutralization signal. The amplitude of the photo-induced signal was measured between 0.5 ms and 35 ms and found to depend on photon wavelength and ion storage time. All three signals can be reproduced with identical thermal IR radiative cooling rates with oscillator strengths equal to theoretical predictions. In addition, the measurements provide the excitation energy distribution.
- OSTI ID:
- 22253440
- Journal Information:
- Journal of Chemical Physics, Vol. 140, Issue 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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