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Title: Characterization of uranium bearing material using x-ray fluorescence and direct gamma-rays measurement techniques

Uranium ore can be easily detected due to various gamma-ray energies emitted from uranium daughters particularly from {sup 238}U daughters such as {sup 214}Bi, {sup 214}Pb and {sup 226}Ra. After uranium is extracted from uranium ore, only low energy gamma-rays emitted from {sup 235}U may be detected if the detector is placed in close contact to the specimen. In this research, identification and characterization of uranium bearing materials is experimentally investigated using direct measurement of gamma-rays from {sup 235}U in combination with the x-ray fluorescence (XRF) technique. Measurement of gamma-rays can be conducted by using high purity germanium (HPGe) detector or cadmium telluride (CdTe) detector while a {sup 57}Coradioisotope-excited XRF spectrometer using CdTe detector is used for elemental analysis. The proposed technique was tested with various uranium bearing specimens containing natural, depleted and enriched uranium in both metallic and powder forms.
Authors:
;  [1] ; ;  [2]
  1. Faculty of Engineering, Chulalongkorn University Phyathai Rd., Wang Mai, Patumwan, Bangkok 10330 (Thailand)
  2. College of Engineering, Universiti Tenaga Nasional 43000 Kajang, Selangor (Malaysia)
Publication Date:
OSTI Identifier:
22494545
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1704; Journal Issue: 1; Conference: iNuSTEC2015: International muclear science, technology and engineering conference 2015, Negeri Sembilan (Malaysia), 17-19 Aug 2015; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; BISMUTH 214; CADMIUM; CDTE SEMICONDUCTOR DETECTORS; ENRICHED URANIUM; FLUORESCENCE; GAMMA RADIATION; HIGH-PURITY GE DETECTORS; LEAD 214; POWDERS; RADIUM 226; SPECTROMETERS; TELLURIDES; URANIUM 235; URANIUM 238; URANIUM ORES; X RADIATION; X-RAY FLUORESCENCE ANALYSIS