Title :
Comparison of a LaBr3 (Ce) Scintillation Detector With a Large Volume CdZnTe Detector
Author :
Syntfeld, Agnieszka ; Arlt, Rolf ; Gostilo, Vladimir ; Loupilov, Alexander ; Moszynski, M. ; Nassalski, Antoni ; Swoboda, Martha ; Wolski, Dariusz
Author_Institution :
Soltan Inst. for Nucl. Studies, Swierk-Otwock
Abstract :
The performance of hand-held radioisotope identification devices (RIDs) is still hampered by the performance of the NaI(Tl) detectors, which are commonly used in such instruments. In this paper, we continue the search for better detector options. One of the largest single elements ever made, a coplanar CdZnTe (CZT) detector (30times15times12.1 mm3 volume 5.45 cm3 designed by University of Michigan) is compared with a commercially available LaBr3(Ce) detector (ominus1´´times1´´ volume 12.9 cm3.) Parameters that are relevant to the performance of isotope identification devices, such as resolution and efficiency as function of the gamma-ray energy, temperature shift, linearity and others are measured and compared. According to measurement results, it seems that for this application LaBr3(Ce) detectors are a viable alternative to CZT detectors; even more so if one bears in mind that LaBr3(Ce) became commercially available only recently and detectors with larger volumes are likely to appear in the near future
Keywords :
gamma-ray detection; radioisotopes; semiconductor counters; solid scintillation detectors; 12.1 mm; 15 mm; 30 mm; LaBr3(Ce) scintillation detector; NaI(Tl) detectors; border monitoring; coplanar CdZnTe detector; gamma-ray energy; hand-held radioisotope identification devices; linearity measurement; room temperature semiconductor detectors; temperature shift measurement; Energy measurement; Energy resolution; Gamma ray detection; Gamma ray detectors; Instruments; Isotopes; Linearity; Radioactive materials; Temperature; Volume measurement; Border monitoring; CdZnTe; LaBr$_{3}$(Ce); room temperature semiconductor detectors; scintillators;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2006.885385
