TY - JOUR
T1 - Detection of low-energy charged particles by channel electron multipliers
AU - Newson, D.
AU - Shipman, M.
AU - Brawley, S.
AU - Kadokura, R.
AU - Babij, T.
AU - Cooke, D.
AU - Leslie, D.
AU - Laricchia, G.
N1 - Publisher Copyright:
© 2022 The Author(s)
PY - 2022/11/1
Y1 - 2022/11/1
N2 - Experimental determinations of the detection efficiency for positrons impacting a channel electron multiplier with incident energies between 0-1400 eV are presented. A log-normal dependence with energy is established and used to compute the positron-to-positronium detection efficiency ratio as a function of positronium energy, as required for determining quantities involving the ratio of positron and positronium rates. A log-normal energy-dependence is also observed in results of previous work with electrons, protons and ions.
AB - Experimental determinations of the detection efficiency for positrons impacting a channel electron multiplier with incident energies between 0-1400 eV are presented. A log-normal dependence with energy is established and used to compute the positron-to-positronium detection efficiency ratio as a function of positronium energy, as required for determining quantities involving the ratio of positron and positronium rates. A log-normal energy-dependence is also observed in results of previous work with electrons, protons and ions.
KW - Analysis and statistical methods
KW - Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)
KW - Detector modelling and simulations II (electric fields, charge transport, multiplication and induction, pulse formation, electron emission, etc)
KW - Electron multipliers (vacuum)
UR - http://www.scopus.com/inward/record.url?scp=85142689372&partnerID=8YFLogxK
U2 - 10.1088/1748-0221/17/11/P11026
DO - 10.1088/1748-0221/17/11/P11026
M3 - Article
SN - 1748-0221
VL - 17
JO - Journal of Instrumentation
JF - Journal of Instrumentation
IS - 11
M1 - P11026
ER -