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Radiative cooling of C7-

Kaveh Najafian ; Maria Susanne Pettersson ; Bertil Dynefors (Institutionen för teknisk fysik) ; Haruo Shiromaru ; Jun Matsumoto ; H Tanuma ; T Furukawa ; Toshiyoki Azuma ; Klavs Hansen
Journal of Chemical Physics (0021-9606). Vol. 140 (2014), 10, p. artikel nr 104311.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: Carbon clusters, radiative cooling



Denna post skapades 2014-03-13. Senast ändrad 2015-03-13.
CPL Pubid: 194946

 

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Institutioner (Chalmers)

Institutionen för fysik (GU) (GU)
Institutionen för teknisk fysik (1900-2015)

Ämnesområden

Atom- och molekylfysik och optik
Fysikalisk kemi

Chalmers infrastruktur