Efficiency calibration of low-energy electron detectors by means of beta-ray emitters

Authors
Spalek, A Dragoun, O Rysavy, M Dragounova, N
Citation
A. Spalek et al., Efficiency calibration of low-energy electron detectors by means of beta-ray emitters, NUCL INST A, 438(2-3), 1999, pp. 433-438
Citations number
13
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
438
Issue
2-3
Year of publication
1999
Pages
433 - 438
Database
ISI
SICI code
0168-9002(199912)438:2-3<433:ECOLED>2.0.ZU;2-2
Abstract
The relative efficiency of a channel electron multiplier for 2-9 keV electr ons was determined using the beta-spectra of vacuum evaporated Pu-241 and N i-63 sources. The results agreed within +/- 0.8% (1 sigma). Conversion elec tron measurements of Co-57 and Yb-169 supported the result. The electron sc attering and energy losses within the sources were taken into account by me ans of Monte Carlo simulations of individual elastic and inelastic collisio ns. The detector was calibrated in the same geometry as it works inside the cylindrical mirror analyzer. (C) 1999 Elsevier Science B.V. All rights res erved.