Cooling dynamics of photo-excited negative carbon cluster ions stored in an ion storage ring

• A newly found fast radiative cooling process of C-6(-) is studied by simulation based on statistical sharing of the internal energy by the vibrational modes both in the electronic ground and excited states. For comparison, a contrasting slow cooling of C6H- is simulated by the same procedure. The simulation demonstrates a distinct difference in the time evolution of energy distributions between C-6(-) and C6H-, and well reproduces the observed fast cooling of C-6(-) by recurrent electronic transitions and the slow cooling of C6H- by vibrational de-excitation. (C) 2014 Elsevier B.V. All rights reserved.

Subject headings

NATURVETENSKAP  -- Kemi -- Teoretisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)

Keyword

Carbon cluster anion

Radiative cooling

Depletion cooling

Inverse internal conversion

Recurrent

THERMIONIC EMISSION

SPECTRA

SPECTROSCOPY

ANIONS

Instruments & Instrumentation

Nuclear Science & Technology

Physics

Atomic

Molecular & Chemical

Physics

Nuclear

Publication and Content Type

ref (subject category)

art (subject category)