Radiative cooling of C7-
Journal article, 2014

The spontaneous and photo-induced neutralization of C_7- 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.

Carbon clusters

radiative cooling


Kaveh Najafian

University of Gothenburg

Maria Susanne Pettersson

University of Gothenburg

Bertil Dynefors

Chalmers, Applied Physics

Haruo Shiromaru

Tokyo Metropolitan University

Jun Matsumoto

Tokyo Metropolitan University

H Tanuma

Tokyo Metropolitan University

T Furukawa

Tokyo Metropolitan University

Toshiyoki Azuma


Klavs Hansen

University of Gothenburg

Journal of Chemical Physics

0021-9606 (ISSN) 1089-7690 (eISSN)

Vol. 140 10 artikel nr 104311- 104311

Subject Categories

Physical Chemistry

Atom and Molecular Physics and Optics





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