Electric discharge of helium-filled proportional counter at liquid helium temperature

Authors
Masaoka, S Katano, R Isozumi, Y
Citation
S. Masaoka et al., Electric discharge of helium-filled proportional counter at liquid helium temperature, NUCL INST B, 160(1), 2000, pp. 172-181
Citations number
17
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
160
Issue
1
Year of publication
2000
Pages
172 - 181
Database
ISI
SICI code
0168-583X(200001)160:1<172:EDOHPC>2.0.ZU;2-2
Abstract
In the present work the electric discharge of the helium-filled proportiona l counter (HFPC) at liquid helium temperature (4.2 IC). which is used as an electron detector in the cryogenic resonance-electron Mossbauer spectrosco py has been studied both experimentally and theoretically. The analysis for observed discharge current has revealed that non-resonance radiations from excited helium atoms, which are created in electron avalanches near the an ode, play a dominant role to initiate the electric discharge. A theoretical treatment for the current multiplication in discharge is also described. ( C) 2000 Elsevier Science B.V. All rights reserved.