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8156887 
Journal Article 
A RUGGEDIZED ZNS(AG)/EPOXY ALPHA-SCINTILLATION DETECTOR 
Mcelhaney, SA; Ramsey, JA; Bauer, ML; Chiles, MM 
1990 
1 
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ISSN: 0168-9002 
ELSEVIER SCIENCE BV 
AMSTERDAM 
299 
1-3 
111-114 
WOS:A1990EV52800023 
An alpha scintillation survey instrument has been developed which is more rugged and efficient than conventional alpha scintillation detectors that use aluminized Mylar ** radiation entrance windows. This new detector consists of a mixture of ZnS(Ag) phosphor and optically transparent epoxy. The scintillator mixture is poured into a preformed mold to provide a thin layer of phosphor after the particles settle to the clear epoxy surface. After partial curing, an optically transparent light pipe is coupled to the ZnS(Ag)/epoxy film by using an additional thin epoxy layer, forming a monolithic scintillator assembly. Experimental results indicate that the new probe is 44% efficient (2-pi) for a large-area Pu-239 alpha source; resistant to scratches, tears, and corrosives; watertight; and temperature independent between -20-degrees-C and 54-degrees-C. 
7TH SYMP ON X-RAY AND GAMMA-RAY SOURCES AND APPLICATIONS : RADIATION MEASUREMENTS AND APPLICATIONS 
ANN ARBOR, MI