QUANTUM EVAPORATION OF HE-4 - ANGULAR-DEPENDENCE AND EFFICIENCY

Authors
ENSS C BANDLER SR LANOU RE MARIS HJ MORE T PORTER FS SEIDEL GM
Citation
C. Enss et al., QUANTUM EVAPORATION OF HE-4 - ANGULAR-DEPENDENCE AND EFFICIENCY, Physica. B, Condensed matter, 194, 1994, pp. 515-516
Citations number
4
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
194
Year of publication
1994
Part
1
Pages
515 - 516
Database
ISI
SICI code
0921-4526(1994)194:<515:QEOH-A>2.0.ZU;2-3
Abstract
Investigations of quantum evaporation from the surface of superfluid H e-4 at 20 mK have been carried out using both an electrical heater and a 5.5 MeV alpha source as generators of quasiparticles. The angular d ependence of the evaporation signals for these two sources is found to be similar. The angular dependence and the total efficiency of the pr ocess are discussed in terms of models of quantum evaporation.