TY - JOUR
T1 - Study of the stand-alone performance of a tile-scintillator shower maximum detector for separating γ-ray/π0 showers
AU - Grunhaus, J.
AU - Kananov, S.
AU - Milsténe, C.
PY - 1993/10/15
Y1 - 1993/10/15
N2 - It is shown that π0 initiated e.m. showers can be separated, with high efficiency, from γ-ray initiated e.m. showers over the incident energy range, 10 to 80 GeV, using a shower maximum detector embedded in an e.m. calorimeter at depths of 5 to 7 X0. Studies of the dependence of the separation efficiency on segmentation, lead to the interesting and important conclusion that the ideal maximum separation is attained with relatively crude segmentation. An algorithm based on two judiciously chosen parameters, the energy weighted radius of the shower, 〈R〉 and the "dispersion measure" of the shower, ER2, has been devised. The separation efficiency is found to have a strong dependence on the incident energy and a weak dependence on the shower incident polar angle.
AB - It is shown that π0 initiated e.m. showers can be separated, with high efficiency, from γ-ray initiated e.m. showers over the incident energy range, 10 to 80 GeV, using a shower maximum detector embedded in an e.m. calorimeter at depths of 5 to 7 X0. Studies of the dependence of the separation efficiency on segmentation, lead to the interesting and important conclusion that the ideal maximum separation is attained with relatively crude segmentation. An algorithm based on two judiciously chosen parameters, the energy weighted radius of the shower, 〈R〉 and the "dispersion measure" of the shower, ER2, has been devised. The separation efficiency is found to have a strong dependence on the incident energy and a weak dependence on the shower incident polar angle.
UR - http://www.scopus.com/inward/record.url?scp=0027684983&partnerID=8YFLogxK
U2 - 10.1016/0168-9002(93)90264-I
DO - 10.1016/0168-9002(93)90264-I
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AN - SCOPUS:0027684983
SN - 0168-9002
VL - 335
SP - 129
EP - 135
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 -