Comparison of CeBr3 with LaBr3:Ce, LaCl3:Ce, and NaI:Tl Detectors
Energy resolution and detection efficiency were compared between two sizes of cerium bromide (CeBr3) scintillators, three sizes of lanthanum bromide (LaBr3:Ce) scintillators, three sizes of sodium iodide (NaI:Tl) scintillators, and a lanthanum chloride (LaCl3:Ce) scintillator. Comparisons are made of key parameters such as energy resolution, detection efficiency, linearity, and self-activity of CeBr3, LaBr3:Ce, LaCl3:Ce, and NaI:Tl scintillator detectors. The scintillator detectors are tested by comparing the peak separation and identification in the energy range up to 3.0 MeV using 133Ba, 152Eu, and naturally occurring radioactive materials [1]. The study has shown that CeBr3 scintillator detectors provided by Saint-Gobain offer better resolution than NaI:Tl scintillator detectors. CeBr3 detectors could resolve some closely spaced peaks from 133Ba and 152Eu, which NaI:Tl could not. LaBr3:Ce has slightly better resolution, and a slightly higher efficiency than CeBr3. In this work, “self-activity” of each of these four detector types was measured by operating the detectors themselves. A comparison of the intrinsic activity for all of the detectors in this study is demonstrated. For CeBr3, the self-activity present may be reduced, or even eliminated in the future, through improved processes for growing the material. It will be discussed if, and under what conditions, CeBr3 may be better than LaBr3:Ce and LaCl3:Ce for detection of certain special nuclear material γ-rays [2]. An overall advantage of CeBr3 detectors over lanthanum halide and NaI:Tl detectors will be discussed.
- Research Organization:
- Nevada Test Site/National Security Technologies, LLC (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-06NA25946
- OSTI ID:
- 1055235
- Report Number(s):
- DOE/NV/25946--1023
- Journal Information:
- Proceedings of the SPIE, Journal Name: Proceedings of the SPIE Vol. 7805
- Country of Publication:
- United States
- Language:
- English
Similar Records
Size Effect on Nuclear Gamma-Ray Energy Spectra Acquired by Different Sized CeBr3, LaBr3:Ce, and NaI:Tl Gamma-Ray Detectors
CeBr3 as a Room-Temperature, High-Resolution Gamma-Ray Detector
CeBr3 as a High-Resolution Gamma-Ray Detector
Journal Article
·
Fri Feb 28 23:00:00 EST 2014
· Nuclear Technology
·
OSTI ID:1136765
CeBr3 as a Room-Temperature, High-Resolution Gamma-Ray Detector
Journal Article
·
Tue Sep 01 00:00:00 EDT 2009
· Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
·
OSTI ID:977816
CeBr3 as a High-Resolution Gamma-Ray Detector
Conference
·
Wed Nov 12 23:00:00 EST 2008
·
OSTI ID:948005