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Title: Method and apparatus for measuring enrichment of UF6

Abstract

A system and method are disclosed for determining the enrichment of .sup.235U in Uranium Hexafluoride (UF6) utilizing synthesized X-rays which are directed at a container test zone containing a sample of UF6. A detector placed behind the container test zone then detects and counts the X-rays which pass through the container and the UF6. In order to determine the portion of the attenuation due to the UF6 gas alone, this count rate may then be compared to a calibration count rate of X-rays passing through a calibration test zone which contains a vacuum, the test zone having experienced substantially similar environmental conditions as the actual test zone. Alternatively, X-rays of two differing energy levels may be alternately directed at the container, where either the container or the UF6 has a high sensitivity to the difference in the energy levels, and the other having a low sensitivity.

Inventors:
 [1];  [2]
  1. Santa Fe, NM
  2. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1019111
Patent Number(s):
7957504
Application Number:
US Patent Application 12/582,641
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Hill, Thomas Roy, and Ianakiev, Kiril Dimitrov. Method and apparatus for measuring enrichment of UF6. United States: N. p., 2011. Web.
Hill, Thomas Roy, & Ianakiev, Kiril Dimitrov. Method and apparatus for measuring enrichment of UF6. United States.
Hill, Thomas Roy, and Ianakiev, Kiril Dimitrov. Tue . "Method and apparatus for measuring enrichment of UF6". United States. https://www.osti.gov/servlets/purl/1019111.
@article{osti_1019111,
title = {Method and apparatus for measuring enrichment of UF6},
author = {Hill, Thomas Roy and Ianakiev, Kiril Dimitrov},
abstractNote = {A system and method are disclosed for determining the enrichment of .sup.235U in Uranium Hexafluoride (UF6) utilizing synthesized X-rays which are directed at a container test zone containing a sample of UF6. A detector placed behind the container test zone then detects and counts the X-rays which pass through the container and the UF6. In order to determine the portion of the attenuation due to the UF6 gas alone, this count rate may then be compared to a calibration count rate of X-rays passing through a calibration test zone which contains a vacuum, the test zone having experienced substantially similar environmental conditions as the actual test zone. Alternatively, X-rays of two differing energy levels may be alternately directed at the container, where either the container or the UF6 has a high sensitivity to the difference in the energy levels, and the other having a low sensitivity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {6}
}

Works referenced in this record:

Effect of Temperature on Counting Measurements in a Uranium Enrichment Monitor Based on a NaI(Tl) Spectrometer and Transmission Source
conference, October 2006


A Gas-Phase UF 6 Enrichment Monitor
journal, November 1982