TY - JOUR
T1 - Origins of the residual pulse height deficit in propane-filled gas ionization detectors
AU - Weijers-Dall, T. D.M.
AU - Timmers, H.
AU - Elliman, R. G.
PY - 2005/9/11
Y1 - 2005/9/11
N2 - This work investigates the origins of the residual pulse height deficit in gas ionization detectors. It is motivated by the recent observation that the species dependence of gas detector response cannot be accounted for solely by considering the energy loss of the ions in the detector window and non-ionizing energy loss processes in the detector gas. It was found that the residual pulse height deficit is approximately proportional to the square of the ionization density. However, only a weak dependence of the residual deficit on gas pressure (in the range 70-120mbar) was observed. It is hypothesized that the residual pulse height deficit in gas ionization detectors results from the effect of multiple ionization of individual gas molecules at high ionization densities on the energy required to create an electron-ion pair.
AB - This work investigates the origins of the residual pulse height deficit in gas ionization detectors. It is motivated by the recent observation that the species dependence of gas detector response cannot be accounted for solely by considering the energy loss of the ions in the detector window and non-ionizing energy loss processes in the detector gas. It was found that the residual pulse height deficit is approximately proportional to the square of the ionization density. However, only a weak dependence of the residual deficit on gas pressure (in the range 70-120mbar) was observed. It is hypothesized that the residual pulse height deficit in gas ionization detectors results from the effect of multiple ionization of individual gas molecules at high ionization densities on the energy required to create an electron-ion pair.
KW - Detector response
KW - Elastic recoil detection
KW - Gas ionization detector
KW - Ion beam analysis
KW - Pulse height deficit
UR - http://www.scopus.com/inward/record.url?scp=24644453181&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2005.04.078
DO - 10.1016/j.nima.2005.04.078
M3 - Article
SN - 0168-9002
VL - 550
SP - 139
EP - 144
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1-2
ER -