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Determining the Contribution of the Energy Systems During Exercise
Published on: March 20, 2012
Long-Term Monitoring of the Internal Energy Distribution of Isolated Cluster Systems
Christian Breitenfeldt1,2, Klaus Blaum2, Sebastian George2
1Institut für Physik, Universität Greifswald, 17487 Greifswald, Germany.
Abstract:
A method is presented to monitor the internal energy distribution of cluster anions via delayed electron detachment by pulsed photoexcitation and demonstrated on Co_{4}^{-} in an electrostatic ion beam trap. In a cryogenic operation, we calibrate the detachment delay to internal energy. By laser frequency scans, at room temperature, we reconstruct the time-dependent internal energy distribution of the clusters. The mean energies of ensembles from a cold and a hot ion source both approach thermal equilibrium. Our data yield a radiative emission law and the absorptivity of the cluster for thermal radiation.
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