IMPROVEMENT OF CdMnTe DETECTOR PERFORMANCE BY MnTe PURIFICATION
Conference
·
OSTI ID:1020941
Residual impurities in manganese (Mn) are a big obstacle to obtaining high-performance CdMnTe (CMT) X-ray and gamma-ray detectors. Generally, the zone-refining method is an effective way to improve the material's purity. In this work, we purified the MnTe compounds combining the zone-refining method with molten Te, which has a very high solubility for most impurities. We confirmed the improved purity of the material by glow-discharge mass spectrometry (GDMS). We also found that CMT crystals from a multiply-refined MnTe source, grown by the vertical Bridgman method, yielded better performing detectors.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
- Sponsoring Organization:
- DOE - NATIONAL NUCLEAR SECURITY ADMINISTRATION
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 1020941
- Report Number(s):
- BNL-95038-2011-CP; R&D Project: 10406; 10406; NN2001000; TRN: US201116%%966
- Resource Relation:
- Conference: 2011 MRS Spring Meeting and Exhibit; San Francisco, CA; 20110425 through 20110429
- Country of Publication:
- United States
- Language:
- English
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