Comparative gamma spectroscopy with SrI2(Eu), GYGAG(Ce) and Bi-loaded plastic scintillators

• Published in: IEEE Nuclear Science Symposuim & Medical Imaging Conference pp. 1288 - 1291
• Main Authors: Cherepy, N J, Payne, S A, Sturm, B W, Kuntz, J D, Seeley, Z M, Rupert, B L, Sanner, R D, Drury, O B, Hurst, T A, Fisher, S E, Groza, M, Matei, L, Burger, A, Hawrami, R, Shah, K S, Boatner, L A
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-10-2010
• Subjects: ceramic scintillators; Ceramics; Crystals; Detectors; Energy resolution; gamma ray spectrometers; plastic scintillators; Plastics; Scintillators; Spectroscopy; strontium iodide; transparent ceramics
• ISBN: 9781424491063; 1424491061
• ISSN: 1082-3654; 2577-0829
• DOI: 10.1109/NSSMIC.2010.5873975

We are developing new scintillator materials that offer potential for high resolution gamma ray spectroscopy at low cost. Single crystal SrI 2 (Eu) offers ~3% resolution at 662 keV, in sizes of ~1 in 3 . We have developed ceramics processing technology allowing us to achieve cubic inch scale transparent ceramic scintillators offering gamma spectroscopy performance superior to NaI(Tl). Our bismuth-loaded plastic scintillator demonstrates energy resolution of ~8% at 662 keV, for samples of ~0.5 cm 3 .