Apparatus complex based on liquid xenon detector for gamma spectrometry in the intervals between pulses of intense radiation

International Conference on Particle Physics and Astrophysics

物理学;天文学

Kirsanov, M.A.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

关键词: Accelerator beams;    Gamma spectrometry;    Irradiation pulse;    Mode of operations;    Passive protection;    Pulse irradiation;    Scintillation monitors;    Thermoluminescent dosimeters;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012212/pdf
DOI  :  10.1088/1742-6596/798/1/012212

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

To investigate the effects of intense radiation on the operation of the liquid xenon spectrometer we have created apparatus complex on the basis of the liquid xenon detector. The experimental setup consists of a multifunctional chamber, gas system, cooling system, temperature control system, X-ray generator, a special preamp, passive protection, scintillation monitor of the accelerator beam, thermoluminescent dosimeters, copper monitor bremsstrahlung, Ge(Li) detector. Multifunctional chamber includes a detecting unit (flat or cylindrical ionization chamber), the cleaning unit of the xenon, control unit of the purity of liquid xenon. The liquid xenon detector was irradiated by bremsstrahlung pulses of the microtron. The frequency of irradiation pulses was 400 Hz. The absorbed dose was varied from 10-7to 0.1 Gy per pulse. The electronic and ionic processes in liquid xenon at different radiation doses were investigated. The recovery time of the spectrometric mode of operation of the liquid xenon detector after intense pulse irradiation has been studied. Stable operation of the liquid xenon spectrometer in the intervals between the pulses of the accelerator shown for a long time.