Liquid Xe homogeneous electro-magnetic calorimeter

H. Okada, T. Doke, T. Kashiwagi, J. Kikuchi, M. Kobayashi, K. Masuda, E. Shibamura, S. Suzuki, T. Takashima, K. Terasawa

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)427-438
Number of pages12
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume451
Issue number2
DOIs
Publication statusPublished - 2000 Sep 1
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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