TY - JOUR
T1 - Liquid Xe homogeneous electro-magnetic calorimeter
AU - Okada, H.
AU - Doke, T.
AU - Kashiwagi, T.
AU - Kikuchi, J.
AU - Kobayashi, M.
AU - Masuda, K.
AU - Shibamura, E.
AU - Suzuki, S.
AU - Takashima, T.
AU - Terasawa, K.
N1 - Funding Information:
The authors would like to thank Dr. P. Picchi, Lab. Naz. di Frascati dell'INFN, for supporting our experiment and Dr. H. Hirayama, KEK, for valuable discussions. This work has been supported by a Grant-in aid for Scientific Research from the Ministry of Education.
PY - 2000/9/1
Y1 - 2000/9/1
N2 - We constructed a liquid xenon calorimeter with electrodes of multi-parallel plates. This calorimeter is regarded as homogeneous because of thin electrodes and is expected to have an excellent energy resolution of 0.34% for 70 GeV electrons by EGS4 simulation. We tested it for 10-70 GeV electrons at CERN. The measurements were made without signals from a readout channel at about 4 radiation length lost by failure. By simply summing other signals the energy resolution of 2% (r.m.s.), which includes the beam momentum spread of 0.65%, was obtained for 70 GeV electrons. The signal from the lost channel can be estimated by fitting a build-up curve to the obtained signals for each event. If the correction for the contribution from the lost channel is made by the fitting method, the energy resolution is 0.9%, which is close to the resolution of 0.71% obtained by the simulation.
AB - We constructed a liquid xenon calorimeter with electrodes of multi-parallel plates. This calorimeter is regarded as homogeneous because of thin electrodes and is expected to have an excellent energy resolution of 0.34% for 70 GeV electrons by EGS4 simulation. We tested it for 10-70 GeV electrons at CERN. The measurements were made without signals from a readout channel at about 4 radiation length lost by failure. By simply summing other signals the energy resolution of 2% (r.m.s.), which includes the beam momentum spread of 0.65%, was obtained for 70 GeV electrons. The signal from the lost channel can be estimated by fitting a build-up curve to the obtained signals for each event. If the correction for the contribution from the lost channel is made by the fitting method, the energy resolution is 0.9%, which is close to the resolution of 0.71% obtained by the simulation.
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U2 - 10.1016/S0168-9002(00)00327-2
DO - 10.1016/S0168-9002(00)00327-2
M3 - Article
AN - SCOPUS:0034272450
SN - 0168-9002
VL - 451
SP - 427
EP - 438
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 - 2
ER -