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Absolute light yield measurements on BaF[sub 2] crystals and the quantum efficiency of several photomultiplier tubes

Conference · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:5858958
; ; ; ;  [1]
  1. Delft Univ. of Technology (Netherlands)
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The quantum efficiency (QE) curves of five Philips XP2020Q photomultiplier tubes (PMTs), one Hamamatsu R2059 PMT, and a Na-Salicylate coated glass window were determined using a calibrated Thorn EMI 9426 PMT as a reference. The QE of XP2020Q PMTs at wavelengths smaller than 230 nm appears much better than the values specified by the manufacturer. Consequently, the often reported photon yield of 2,000 photons/MeV for the fast component of the scintillation pulses from pure BaF[sub 2] crystals determined with this tube is overestimated. Their results, obtained by means of calibrated equipment and using 662 keV [gamma]-rays, yield a value of 1,400 photons/MeV.
OSTI ID:
5858958
Report Number(s):
CONF-921005--
Conference Information:
Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 40:4 part 1
Country of Publication:
United States
Language:
English

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Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM FLUORIDES
DATA
EFFICIENCY
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
GAMMA RADIATION
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IONIZING RADIATIONS
LUMINESCENCE
MEASURING INSTRUMENTS
NUMERICAL DATA
PHOTOMULTIPLIERS
PHOTOTUBES
QUANTUM EFFICIENCY
RADIATION DETECTORS
RADIATIONS
SCINTILLATION COUNTERS