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Träfflista för sökning "WFRF:(Shiromaru Haruo) srt2:(2014)"

Sökning: WFRF:(Shiromaru Haruo) > (2014)

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1.
  • Ito, Gen, et al. (författare)
  • Difference in cooling dynamics between photo-excited C6- and C6H-
  • 2014
  • Ingår i: Journal of Physics, Conference Series. - 1742-6588 .- 1742-6596. ; 488
  • Tidskriftsartikel (refereegranskat)abstract
    • Laser-induced electron detachment of C6- and C6H- stored in an ion storage ring was observed respectively, focusing attention onto the delayed processes with the time constants up to several milliseconds. We found the drastic difference in the decay profiles of photo-excited C6- and C6H- that is, C6- decayed much faster than C6H-. The unexpected fast decay of C6- indicates that it is governed by the radiative cooling with electronic transitions rather than vibrational nor depletion cooling.
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2.
  • Najafian, Kaveh, et al. (författare)
  • Radiative cooling of C7-
  • 2014
  • Ingår i: Journal of Chemical Physics. - : AIP Publishing. - 0021-9606 .- 1089-7690. ; 140:10
  • Tidskriftsartikel (refereegranskat)abstract
    • 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.
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