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Title: In-line assay monitor for uranium hexafluoride

Abstract

An in-line assay monitor for determining the content of uranium-235 in a uranium hexafluoride gas isotopic separation system is provided which removes the necessity of complete access to the operating parameters of the system for determining the uranium-235 content. The method and monitor for carrying out the method involve cooling of a radiation pervious chamber connected in fluid communication with the selected point in the system to withdraw a specimen and solidify the specimen in the chamber. The specimen is irradiated by means of an ionizing radiation source of energy different from that of the 185 keV gamma emissions from uranium-235. The uranium-235 content of the specimen is determined from comparison of the accumulated 185 keV energy counts and reference energy counts. The latter is used to measure the total uranium isotopic content of the specimen.

Inventors:
Issue Date:
OSTI Identifier:
7018037
Assignee:
Dept. of Energy TIC; ERA-06-007072; EDB-81-015676
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; NUCLEAR MATERIALS MANAGEMENT; ON-LINE MEASUREMENT SYSTEMS; URANIUM 235; ISOTOPE RATIO; URANIUM HEXAFLUORIDE; RADIATION MONITORING; SAFEGUARDS; ACTINIDE COMPOUNDS; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; EVEN-ODD NUCLEI; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HEAVY NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MANAGEMENT; MINUTES LIVING RADIOISOTOPES; MONITORING; NUCLEI; ON-LINE SYSTEMS; RADIOISOTOPES; URANIUM COMPOUNDS; URANIUM FLUORIDES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES; 055001* - Nuclear Fuels- Safeguards, Inspection, & Accountability- Technical Aspects; 400103 - Radiometric & Radiochemical Procedures- (-1987)

Citation Formats

Wallace, S.A. In-line assay monitor for uranium hexafluoride. United States: N. p., 1980. Web.
Wallace, S.A. In-line assay monitor for uranium hexafluoride. United States.
Wallace, S.A. Fri . "In-line assay monitor for uranium hexafluoride". United States.
@article{osti_7018037,
title = {In-line assay monitor for uranium hexafluoride},
author = {Wallace, S.A.},
abstractNote = {An in-line assay monitor for determining the content of uranium-235 in a uranium hexafluoride gas isotopic separation system is provided which removes the necessity of complete access to the operating parameters of the system for determining the uranium-235 content. The method and monitor for carrying out the method involve cooling of a radiation pervious chamber connected in fluid communication with the selected point in the system to withdraw a specimen and solidify the specimen in the chamber. The specimen is irradiated by means of an ionizing radiation source of energy different from that of the 185 keV gamma emissions from uranium-235. The uranium-235 content of the specimen is determined from comparison of the accumulated 185 keV energy counts and reference energy counts. The latter is used to measure the total uranium isotopic content of the specimen.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {3}
}