TY - GEN
T1 - Improvement of CdMnTe detector performance by MnTe purification
AU - Kim, K. H.
AU - Bolotnikov, A. E.
AU - Camarda, G. S.
AU - Tappero, R.
AU - Hossain, A.
AU - Cui, Y.
AU - Yang, G.
AU - Gul, R.
AU - James, R. B.
N1 - Funding Information:
This work was supported by by the U.S. Department of Energy, Office of Nonproliferation Research and Development, NA-22 and the Defense Threat Reduction Agency.
PY - 2012
Y1 - 2012
N2 - 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 that has a very high solubility. We confirmed the improved purity of the material by glow-discharge mass spectrometry (GDMS). We also found that CMT crystals from a multiple refined MnTe source, grown by the vertical Bridgman method, yielded better performing detectors.
AB - 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 that has a very high solubility. We confirmed the improved purity of the material by glow-discharge mass spectrometry (GDMS). We also found that CMT crystals from a multiple refined MnTe source, grown by the vertical Bridgman method, yielded better performing detectors.
UR - http://www.scopus.com/inward/record.url?scp=84863144368&partnerID=8YFLogxK
U2 - 10.1557/opl.2011.1272
DO - 10.1557/opl.2011.1272
M3 - Conference contribution
AN - SCOPUS:84863144368
SN - 9781605113180
T3 - Materials Research Society Symposium Proceedings
SP - 45
EP - 49
BT - Nuclear Radiation Detection Materials - 2011
T2 - 2011 MRS Spring Meeting
Y2 - 25 April 2011 through 29 April 2011
ER -