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Title: Uranium and plutonium solution assays by transmission-corrected x-ray fluorescence

Abstract

We have refined and tested a previously developed x-ray fluorescence analysis technique for uranium and plutonium solutions that compensates for variations in the absorption of the exciting gamma rays and fluorescent x-rays. We use {sup 57}Co to efficiently excite the K lines of the elements, and a mixed {sup 57}Co plus {sup 153}Gd transmission source to correct for variations in absorption. The absorption correction is a unique feature of our technique. It is possible to accurately calibrate the system with a single solution standard. There does not need to be a close match in composition (i.e., absorption) between the standard(s) and solutions to be analyzed. Specially designed equipment incorporates a planar intrinsic germanium detector, excitation and transmission radioisotopes, and specimen holder. The apparatus can be inserted into a rubber glove of a glovebox, keeping the apparatus outside and the solutions inside the glovebox, thereby protecting the user and the equipment from possible contamination. An alternate design may be used in chemical reprocessing plants, providing continuous monitoring, by measuring the trans-actinides through stainless steel piping. This technique has been tested at the Bochvar Research Institute of Inorganic Materials in Moscow for possible use in the Russian complex of nuclear facilities. Thismore » is part of a cooperative program between laboratories in the United States and Russia to strengthen systems of nuclear materials protection, control, and accountability (MPC and A). A part of this program is to accurately measure and track inventories of materials, thus the need for good non-destructive analytical techniques such as the one described here.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
14872
Report Number(s):
UCRL-JC-130094-Rev-1; GJ0800000
Journal ID: ISSN 0049--8246; GJ0800000; TRN: US0106834
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Journal Volume: 28; Journal Issue: 4; Conference: 6th International Conference on Facility Operations - Safeguards Interface, Jackson Hole, WY (US), 09/20/1999--09/24/1999; Other Information: PBD: 8 Sep 1999
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; GE SEMICONDUCTOR DETECTORS; PLUTONIUM; URANIUM; X-RAY FLUORESCENCE ANALYSIS; COBALT 57; GADOLINIUM 153; DESIGN; NUCLEAR MATERIALS MANAGEMENT

Citation Formats

Ryon, R W, Ruhter, W D, Rudenko, V, Sirontinin, A, and Petrov, A A. Uranium and plutonium solution assays by transmission-corrected x-ray fluorescence. United States: N. p., 1999. Web. doi:10.1002/(SICI)1097-4539(199907/08)28:4<230::AID-XRS338>3.0.CO;2-C.
Ryon, R W, Ruhter, W D, Rudenko, V, Sirontinin, A, & Petrov, A A. Uranium and plutonium solution assays by transmission-corrected x-ray fluorescence. United States. doi:10.1002/(SICI)1097-4539(199907/08)28:4<230::AID-XRS338>3.0.CO;2-C.
Ryon, R W, Ruhter, W D, Rudenko, V, Sirontinin, A, and Petrov, A A. Wed . "Uranium and plutonium solution assays by transmission-corrected x-ray fluorescence". United States. doi:10.1002/(SICI)1097-4539(199907/08)28:4<230::AID-XRS338>3.0.CO;2-C. https://www.osti.gov/servlets/purl/14872.
@article{osti_14872,
title = {Uranium and plutonium solution assays by transmission-corrected x-ray fluorescence},
author = {Ryon, R W and Ruhter, W D and Rudenko, V and Sirontinin, A and Petrov, A A},
abstractNote = {We have refined and tested a previously developed x-ray fluorescence analysis technique for uranium and plutonium solutions that compensates for variations in the absorption of the exciting gamma rays and fluorescent x-rays. We use {sup 57}Co to efficiently excite the K lines of the elements, and a mixed {sup 57}Co plus {sup 153}Gd transmission source to correct for variations in absorption. The absorption correction is a unique feature of our technique. It is possible to accurately calibrate the system with a single solution standard. There does not need to be a close match in composition (i.e., absorption) between the standard(s) and solutions to be analyzed. Specially designed equipment incorporates a planar intrinsic germanium detector, excitation and transmission radioisotopes, and specimen holder. The apparatus can be inserted into a rubber glove of a glovebox, keeping the apparatus outside and the solutions inside the glovebox, thereby protecting the user and the equipment from possible contamination. An alternate design may be used in chemical reprocessing plants, providing continuous monitoring, by measuring the trans-actinides through stainless steel piping. This technique has been tested at the Bochvar Research Institute of Inorganic Materials in Moscow for possible use in the Russian complex of nuclear facilities. This is part of a cooperative program between laboratories in the United States and Russia to strengthen systems of nuclear materials protection, control, and accountability (MPC and A). A part of this program is to accurately measure and track inventories of materials, thus the need for good non-destructive analytical techniques such as the one described here.},
doi = {10.1002/(SICI)1097-4539(199907/08)28:4<230::AID-XRS338>3.0.CO;2-C},
journal = {},
issn = {0049--8246},
number = 4,
volume = 28,
place = {United States},
year = {1999},
month = {9}
}

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