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Long-Term Monitoring of the Internal Energy Distribution of Isolated Cluster Systems

MPG-Autoren
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Breitenfeldt,  Christian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Institut für Physik, Universität Greifswald, 17487 Greifswald, Germany;

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Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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George,  Sebastian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Göck,  Jürgen
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Karthein,  Jonas
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Lange,  Michael
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Menk,  Sebastian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Meyer,  Christian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Schwalm,  Dirk
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel;

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Wolf,  Andreas
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Zitation

Breitenfeldt, C., Blaum, K., George, S., Göck, J., Guzmán-Ramírez, G., Karthein, J., et al. (2018). Long-Term Monitoring of the Internal Energy Distribution of Isolated Cluster Systems. Physical Review Letters, 120(25): 253001. doi:10.1103/PhysRevLett.120.253001.


Zitierlink: http://hdl.handle.net/21.11116/0000-0001-B52D-1
Zusammenfassung
A method is presented to monitor the internal energy distribution of cluster anions via delayed electron detachment by pulsed photoexcitation and demonstrated on Co4 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.