Abstract
Measurements of electron drift properties in liquid and gaseous xenon are reported. The electrons are generated by the photoelectric effect in a semi-transparent gold photocathode driven in transmission mode with a pulsed ultraviolet laser. The charges drift and diffuse in a small chamber at various electric fields and a fixed drift distance of 2.0 cm. At an electric field of 0.5 kV/cm, the measured drift velocities and corresponding temperature coefficients respectively are 1.97±0.04mm∕μs and (−0.69±0.05)%/K for liquid xenon, and 1.42±0.03mm∕μs and (+0.11±0.01)%/K for gaseous xenon at 1.5 bar. In addition, we measure longitudinal diffusion coefficients of 25.7±4.6 cm2/s and 149±23 cm2/s, for liquid and gas, respectively. The quantum efficiency of the gold photocathode is studied at the photon energy of 4.73 eV in liquid and gaseous xenon, and vacuum. These charge transport properties and the behavior of photocathodes in a xenon environment are important in designing and calibrating future large scale noble liquid detectors.
Original language | English |
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Article number | 163965 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 972 |
DOIs | |
State | Published - Aug 21 2020 |
Bibliographical note
Publisher Copyright:© 2020
Funding
This work has been supported by the Offices of Nuclear and High Energy Physics within the DOE Office of Science , and NSF in the United States , by NSERC , CFI , the A. McDonald Institute — CFREF, FRQNT, and NRC in Canada , by IBS in Korea , by RFBR (18-02-00550) in Russia, and by CAS and NSFC in China. This work was supported in part by Laboratory Directed Research and Development (LDRD) programs at Brookhaven National Laboratory (BNL) .
Funders | Funder number |
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A. McDonald Institute | |
National Science Foundation Arctic Social Science Program | |
Brookhaven National Laboratory (BNL) | |
Laboratory Directed Research and Development | |
Natural Sciences and Engineering Research Council of Canada | |
National Research Council Canada (NRCC) | |
Canada Foundation for Innovation | |
National Natural Science Foundation of China (NSFC) | |
Russian Foundation for Basic Research | 18-02-00550 |
Russian Foundation for Basic Research | |
Chinese Academy of Sciences | |
Fonds de Recherche du Québec - Nature et Technologies | |
Institute for Basic Science (IBS) | |
Canada First Research Excellence Fund |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation