The measured electron response nonproportionality of CaF{sub 2}, BGO, LSO, and GSO

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:512996

Taulbee, T D; Rooney, B D; Mengesha, W; Valentine, J D ^[1]

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1. Univ. of Cincinnati, OH (United States)

To study the light yield nonproportionality and intrinsic energy resolution of inorganic scintillators, a Compton coincidence technique was previously designed, implemented and benchmarked. This technique provides the ability to accurately measure the electron response of scintillation materials and thus provides an accurate means of studying light yield nonproportionality. In this study, the electron responses of two {open_quotes}classic{close_quotes} scintillators (CaF{sub 2}(Eu) and Bi{sub 4}Ge{sub 3}O{sub 12} (BGO)) and two newer scintillators (Lu{sub 2}SiO{sub 5}:Ce{sup 3+} (LSO) and Gd{sub 2}SiO{sub 5}:Ce{sup 3+} (GSO)) have been measured over the energy range of about 5 keV to approximately 450 keV using this technique. Electron responses for all four scintillators are observed to increase monotonically with electron energy. BGO is observed to have the least nonproportionality, with its electron response varying about 20% over this energy range. Conversely the LSO electron response is observed to vary about 50% over this energy range and thus exhibits the largest nonproportionality.

• OSTI ID: 512996
• Report Number(s): CONF-961123--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
BISMUTH GERMANATES
CALCIUM FLUORIDES
ELECTRON EMISSION
GADOLINIUM SULFATES
LUTETIUM SILICATES
RESPONSE FUNCTIONS
SCINTILLATIONS