Statistics – Applications
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1736...60b&link_type=abstract
Proc. SPIE Vol. 1736, p. 60-70, X-Ray Detector Physics and Applications, Richard B. Hoover; Ed.
Statistics
Applications
Scientific paper
Low temperature (4.2 K) photoluminescence spectroscopy (PL) measurements were performed on mercuric iodide (HgI(subscript 2)) crystals that were surface-doped with either iodine or mercury. Two methods of treatment were used to achieve the surface doping. The first is the direct immersion of HgI(subscript 2) samples into potassium iodide (KI) aqueous solution saturated with iodine or immersion into elemental mercury liquid. The second is the storage of HgI(subscript 2) crystals under either iodine or mercury vapor. Certain features in the PL spectra were correlated with the stoichiometry of the HgI(subscript 2/ crystals modified by the surface doping. It was also found that if HgI(subscript 2) was exposed to air, an iodine deficient surface layer would form within a one-day period due to the preferential loss of iodine. Finally, the behavior of a broad emission band in the PL spectra and its implication in the fabrication of high quality HgI(subscript 2) nuclear detector is discussed.
Bao Xue J.
Cheng Andrew Y.
Hung Chi-Yuan
James Ralph B.
Ortale Carol
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