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Temperature dependence of decay time and intensity of alpha pulses in pure and thallium-activated cesium iodide

January 1, 1962

The intensity and decay time of Po210 alpha particle scintillations produced in pure and thallium‐activated cesium iodide have been measured with a fast electronic system as a function of temperature down to 77°K. Three modes of decay due to alpha excitation have been observed for CsI(Tl), and two for CsI. Other than the 7‐ and 0.55‐μsec modes (at room temperature) reported in the literature for CsI(Tl), an additional temperature‐independent mode of about 1.3 μsec has been detected between 77 and 150°K. In CsI a fast temperature‐dependent mode of decay (≈100 nsec) was observed between 100–200°K in addition to the known principal mode.

Citation Information

Publication Year 1962
Title Temperature dependence of decay time and intensity of alpha pulses in pure and thallium-activated cesium iodide
DOI 10.1063/1.1717979
Authors F. E. Senftle, P. Martinez, V. P. Alekna
Publication Type Article
Publication Subtype Journal Article
Series Title Review of Scientific Instruments
Series Number
Index ID 70010571
Record Source USGS Publications Warehouse
USGS Organization