TY - JOUR
T1 - Intensity and time profile of recombination luminescence produced by an α -particle in dense xenon gas
AU - Mimura, M.
AU - Kobayashi, S.
AU - Ishikawa, T.
AU - Miyajima, M.
AU - Hasebe, Nobuyuki
PY - 2010/1/21
Y1 - 2010/1/21
N2 - The time profile of recombination luminescence of dense xenon gas irradiated by an α -particle was absolutely measured in the density range of 0.027 - 0.112 g / cm3 with the aim to investigate the intensities of recombination luminescence at zero electric field. It was found that the number of scintillation photons due to the recombination luminescence increases with xenon density up to around 0.05 g / cm3, and then becomes nearly constant (= 2.32 × 105 photons for an α -particle with 5.49 MeV). The probability of recombination between electrons and ions at zero electric field is about 88% in the density range of 0.05 - 0.112 g / cm3. It was also found that the percentage of slow component (∼ sub-milliseconds) in the recombination luminescence decreases with density from 73% to 33% in the density range from 0.027 to 0.112 g / cm3.
AB - The time profile of recombination luminescence of dense xenon gas irradiated by an α -particle was absolutely measured in the density range of 0.027 - 0.112 g / cm3 with the aim to investigate the intensities of recombination luminescence at zero electric field. It was found that the number of scintillation photons due to the recombination luminescence increases with xenon density up to around 0.05 g / cm3, and then becomes nearly constant (= 2.32 × 105 photons for an α -particle with 5.49 MeV). The probability of recombination between electrons and ions at zero electric field is about 88% in the density range of 0.05 - 0.112 g / cm3. It was also found that the percentage of slow component (∼ sub-milliseconds) in the recombination luminescence decreases with density from 73% to 33% in the density range from 0.027 to 0.112 g / cm3.
KW - High-density xenon
KW - Recombination luminescence
KW - Recombination probability
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U2 - 10.1016/j.nima.2009.11.041
DO - 10.1016/j.nima.2009.11.041
M3 - Article
AN - SCOPUS:77949287540
SN - 0168-9002
VL - 613
SP - 106
EP - 111
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
ER -