Alpha pulse height distributions with ZnS(Ag) scintillator.
A flask coated with ZnS(Ag) scintillator is one of the most accurate detectors available for measuring 222Rn. To maintain this accuracy, the counting system consisting of a photomultiplier tube and associated electronics must be checked on a regular basis. A combination of an alpha source and a ZnS(Ag) scintillator is commonly used for these purposes. This paper compares the pulse height distributions of 4 alpha sources with the pulse height distribution from a 100 cm3 scintillation flask containing 222Rn. The source that most closely reproduced the distribution from an actual 222Rn sample in a 100 cm3 scintillation flask consisted of a sealed flask, of the same type, which contains a small piece of uranium-ore.
Department of Radiological Health Sciences, Colorado State University, Fort Collins 80523.
M S
MS
Gadd
T B
TB
Borak
D000512:Alpha Particles; D004581:Electronics; D011886:Radon / Q000032:analysis*; D012588:Scintillation Counting / Q000295:instrumentation / Q000379:methods*; D012680:Sensitivity and Specificity; D012834:Silver; D013440:Sulfides; D017967:Zinc Compounds
D013440:Sulfides; D017967:Zinc Compounds; D012834:Silver; C031238:zinc sulfide; D011886:Radon