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Title: Lead iodide X-ray and gamma-ray spectrometers for room and high temperature operation

Abstract

In this study, we report on the results of the investigation of lead iodide material properties. The effectiveness of zone refining purification methods on the material purity is determined by ICP-MS and ICP-OES and correlated to the electrical and physical material properties. We show that this zone refining method is very efficient in removing impurities from lead iodide and we also determine the segregation coefficient for some of these impurities. Triple axis x- ray diffraction (TAD) analysis has been used to determine the crystalline perfection of the lead iodide after applying various cutting, etching, and fabrication methods. The soft lead iodide crystal was found to be damaged when cleaved by a razor blade, but by using a diamond wheel saw, followed by etching, the crystallinity of the material was improved, as observed by TAD. Low temperature photoluminescence also indicates an improvement in the material properties of the purified lead iodide. Electrical properties of lead iodide such as carrier mobility, were calculated based on carrier- phonon scattering. The results for the electrical properties were in good agreement with the experimental data.

Authors:
; ;  [1]
  1. and others
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Energy Research, Washington, DC (United States)
OSTI Identifier:
477612
Report Number(s):
SAND-97-8222
ON: DE97052192
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Feb 1997
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 36 MATERIALS SCIENCE; GAMMA SPECTROMETERS; SEMICONDUCTOR MATERIALS; X-RAY SPECTROMETERS; LEAD IODIDES; ZONE REFINING; CLEAVAGE; IMPURITIES; MICROANALYSIS; CUTTING; ETCHING; X-RAY DIFFRACTION; PIXE ANALYSIS

Citation Formats

Hermon, H, James, R B, and Cross, E. Lead iodide X-ray and gamma-ray spectrometers for room and high temperature operation. United States: N. p., 1997. Web. doi:10.2172/477612.
Hermon, H, James, R B, & Cross, E. Lead iodide X-ray and gamma-ray spectrometers for room and high temperature operation. United States. https://doi.org/10.2172/477612
Hermon, H, James, R B, and Cross, E. 1997. "Lead iodide X-ray and gamma-ray spectrometers for room and high temperature operation". United States. https://doi.org/10.2172/477612. https://www.osti.gov/servlets/purl/477612.
@article{osti_477612,
title = {Lead iodide X-ray and gamma-ray spectrometers for room and high temperature operation},
author = {Hermon, H and James, R B and Cross, E},
abstractNote = {In this study, we report on the results of the investigation of lead iodide material properties. The effectiveness of zone refining purification methods on the material purity is determined by ICP-MS and ICP-OES and correlated to the electrical and physical material properties. We show that this zone refining method is very efficient in removing impurities from lead iodide and we also determine the segregation coefficient for some of these impurities. Triple axis x- ray diffraction (TAD) analysis has been used to determine the crystalline perfection of the lead iodide after applying various cutting, etching, and fabrication methods. The soft lead iodide crystal was found to be damaged when cleaved by a razor blade, but by using a diamond wheel saw, followed by etching, the crystallinity of the material was improved, as observed by TAD. Low temperature photoluminescence also indicates an improvement in the material properties of the purified lead iodide. Electrical properties of lead iodide such as carrier mobility, were calculated based on carrier- phonon scattering. The results for the electrical properties were in good agreement with the experimental data.},
doi = {10.2172/477612},
url = {https://www.osti.gov/biblio/477612}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Feb 01 00:00:00 EST 1997},
month = {Sat Feb 01 00:00:00 EST 1997}
}