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SUMMARY:Absolute experimental primary scintillation yield in Xe for electr
 ons and alpha particles
DTSTART;VALUE=DATE-TIME:20210915T140000Z
DTEND;VALUE=DATE-TIME:20210915T141500Z
DTSTAMP;VALUE=DATE-TIME:20260306T122737Z
UID:indico-contribution-39@indico.physics.ucsd.edu
DESCRIPTION:Speakers: C. M. B. Monteiro (Departament of Physics\, Universi
 ty of Coimbra)\nXenon scintillation has been widely used in recent particl
 e physics experiments. However\, information on primary scintillation yiel
 d in the absence of recombination is still scarce and dispersed. The mean 
 energy required to produce a VUV scintillation photon (Wsc) in gaseous Xe 
 has been measured to be in the range of 30-120 eV. Lower Wsc-values are of
 ten reported for alpha particles when compared to those for electrons prod
 uced by gamma or x-rays\, being this difference still not fully understood
 .\nWe performed a systematic experimental study of the absolute primary sc
 intillation yield in Xe at 1.2 bar\, using a Gas Proportional Scintillatio
 n Counter. The simulation model of the detector's geometric efficiency was
  benchmarked through the primary and secondary scintillation produced at d
 ifferent distances from the photosensor. Wsc-values were obtained for gamm
 a- and x-rays with energies in the range of 5.9-60 keV\, and for 2-MeV alp
 ha particles. No significant differences were found in the values for alph
 a particles and for electrons.\n\nAcknowledgment\nThis work is funded by F
 EDER\, through the Programa Operacional Factores de Competitividade — CO
 MPETE and by National funds through FCT - Fundação para a Ciência e Tec
 nologia\, Lisbon\, Portugal\,  in the frame of project UID/FIS/04559/2020 
 (LIBPhys).\n\nhttps://indico.physics.ucsd.edu/event/1/contributions/39/
LOCATION:
URL:https://indico.physics.ucsd.edu/event/1/contributions/39/
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