Title :
Scintillation material for detection of α-,β-radiation based on polymer-dispersed p-terphenyl
Author :
Grinyov, B.V. ; Andryushchenko, L.A. ; Budakovski, S.V. ; Raigorodski, I.M. ; Sotnikov, V.T.
Author_Institution :
Inst. for Single Crystals, Acad. of Sci., Kharkov, Ukraine
fDate :
30 Oct-5 Nov 1994
Abstract :
Two types of scintillators are described based on polyorgano-polysiloxane carbosil block co-polymers for detectors of α- and β-radiation. It is shown that scintillators of the first type, obtained by casting of a 2-4% solution of carbosil (in toluene, etc.) comprising p-terphenyl and a spectrum-shifting activator, have a conversion efficiency which, with a thickness of 0.1-0.5 mm, is 2.5 times higher than that of a standard polystyrene sample (for α-radiation). The second type, based on grinded crystals of p-terphenyl (size of particles 0.5-1 mm) in carbosil, have a scintillation efficiency 20% higher than that of anhracene single crystals
Keywords :
alpha-particle detection; beta-ray detection; solid scintillation detectors; α-radiation detector; β-radiation detector; 0.1 to 0.5 mm; conversion efficiency; polymer-dispersed p-terphenyl; polyorgano-polysiloxane carbosil block co-polymers; scintillators; spectrum-shifting activator; toluene; Casting; Crystallization; Crystals; Glass; Optical films; Polymers; Powders; Solid scintillation detectors; Surface morphology; Temperature sensors;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record
Conference_Location :
Norfolk, VA
Print_ISBN :
0-7803-2544-3
DOI :
10.1109/NSSMIC.1994.474384
