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Title: Thermal radiation of laser heated niobium clusters Nb{sub N}{sup +}, 8 ⩽ N ⩽ 22

The thermal radiation from small, laser heated, positively charged niobium clusters has been measured. The emitted power was determined by the quenching effect on the metastable decay, employing two different experimental protocols. The radiative power decreases slightly with cluster size and shows no strong size-to-size variations. The magnitude is 40–50 keV/s at the timescale of several microseconds, which is the measured crossover time from evaporative to radiative cooling.
Authors:
 [1] ; ; ;  [2]
  1. Department of Physics, University of Gothenburg, 41296 Gothenburg (Sweden)
  2. Laboratory of Solid State Physics and Magnetism, KU Leuven, B-3001 Leuven (Belgium)
Publication Date:
OSTI Identifier:
22308773
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 141; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; DECAY; EMISSION; LASERS; NIOBIUM; NITROGEN IONS; QUENCHING; RADIATIVE COOLING; THERMAL RADIATION