Post-Irradiation Examination of Array Targets - Part I
Abstract
During FY 2001, two arrays, each containing seven neptunium-loaded targets, were irradiated at the Advanced Test Reactor in Idaho to examine the influence of multi-target self-shielding on {sup 236}Pu content and to evaluate fission product release data. One array consisted of seven targets that contained 10 vol% NpO{sub 2} pellets, while the other array consisted of seven targets that contained 20 vol % NpO{sub 2} pellets. The arrays were located in the same irradiation facility but were axially separated to minimize the influence of one array on the other. Each target also contained a dosimeter package, which consisted of a small NpO{sub 2} wire that was inside a vanadium container. After completion of irradiation and shipment back to the Oak Ridge National Laboratory, nine of the targets (four from the 10 vol% array and five from the 20 vol% array) were punctured for pressure measurement and measurement of {sup 85}Kr. These nine targets and the associated dosimeters were then chemically processed to measure the residual neptunium, total plutonium production, {sup 238}Pu production, and {sup 236}Pu concentration at discharge. The amount and isotopic composition of fission products were also measured. This report provides the results of the processing and analysis ofmore »
- Authors:
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 885872
- Report Number(s):
- ORNL/TM-2003/220
TRN: US0604110
- DOE Contract Number:
- DE-AC05-00OR22725
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; DOSEMETERS; FISSION PRODUCT RELEASE; FISSION PRODUCTS; IRRADIATION; NEPTUNIUM; PELLETS; PLUTONIUM; POST-IRRADIATION EXAMINATION; PRESSURE MEASUREMENT; PROCESSING; PRODUCTION; SELF-SHIELDING; TARGETS; TEST REACTORS; VANADIUM; NESDPS Office of Nuclear Energy Space and Defense Power Systems
Citation Formats
Icenhour, A S. Post-Irradiation Examination of Array Targets - Part I. United States: N. p., 2004.
Web. doi:10.2172/885872.
Icenhour, A S. Post-Irradiation Examination of Array Targets - Part I. United States. https://doi.org/10.2172/885872
Icenhour, A S. 2004.
"Post-Irradiation Examination of Array Targets - Part I". United States. https://doi.org/10.2172/885872. https://www.osti.gov/servlets/purl/885872.
@article{osti_885872,
title = {Post-Irradiation Examination of Array Targets - Part I},
author = {Icenhour, A S},
abstractNote = {During FY 2001, two arrays, each containing seven neptunium-loaded targets, were irradiated at the Advanced Test Reactor in Idaho to examine the influence of multi-target self-shielding on {sup 236}Pu content and to evaluate fission product release data. One array consisted of seven targets that contained 10 vol% NpO{sub 2} pellets, while the other array consisted of seven targets that contained 20 vol % NpO{sub 2} pellets. The arrays were located in the same irradiation facility but were axially separated to minimize the influence of one array on the other. Each target also contained a dosimeter package, which consisted of a small NpO{sub 2} wire that was inside a vanadium container. After completion of irradiation and shipment back to the Oak Ridge National Laboratory, nine of the targets (four from the 10 vol% array and five from the 20 vol% array) were punctured for pressure measurement and measurement of {sup 85}Kr. These nine targets and the associated dosimeters were then chemically processed to measure the residual neptunium, total plutonium production, {sup 238}Pu production, and {sup 236}Pu concentration at discharge. The amount and isotopic composition of fission products were also measured. This report provides the results of the processing and analysis of the nine targets.},
doi = {10.2172/885872},
url = {https://www.osti.gov/biblio/885872},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 23 00:00:00 EST 2004},
month = {Fri Jan 23 00:00:00 EST 2004}
}