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Title: Fiscal Year (FY) 2017 Activities for the Spent Fuel Nondestructive Assay Project

Abstract

The main focus of research in the NA-241 spent fuel nondestructive assay (NDA) project in FY17 has been completing the fabrication and testing of two prototype instruments for upcoming spent fuel measurements at the Clab interim storage facility in Sweden. One is a passive instrument: Differential Die-away Self Interrogation-Passive Neutron Albedo Reactivity (DDSI), and one is an active instrument: Differential Die-Away-Californium Interrogation with Prompt Neutron (DDA). DDSI was fabricated and tested with fresh fuel at Los Alamos National Laboratory in FY15 and FY16, then shipped to Sweden at the beginning of FY17. Research was performed in FY17 to simplify results from the data acquisition system, which is complex because signals from 56 different 3He detectors must be processed using list mode data. The DDA instrument was fabricated at the end of FY16. New high count rate electronics better suited for a spent fuel environment (i.e., KM-200 preamplifiers) were built specifically for this instrument in FY17, and new Tygon tubing to house electrical cables was purchased and installed. Fresh fuel tests using the DDA instrument with numerous configurations of fuel rods containing depleted uranium (DU), low enriched uranium (LEU), and LEU with burnable poisons (Gd) were successfully performed and compared tomore » simulations.1 Additionally, members of the spent fuel NDA project team travelled to Sweden for a “spent fuel characterization and decay heat” workshop involving simulations of spent fuel and analysis of uncertainties in decay heat calculations.« less

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [2];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
OSTI Identifier:
1392821
Report Number(s):
LA-UR-17-28157
DOE Contract Number:
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS

Citation Formats

Trellue, Holly Renee, Trahan, Alexis Chanel, McMath, Garrett Earl, Swinhoe, Martyn Thomas, Hu, Jianwei, Worrall, Andrew, Ilas, Germina, and Grogan, Brandon. Fiscal Year (FY) 2017 Activities for the Spent Fuel Nondestructive Assay Project. United States: N. p., 2017. Web. doi:10.2172/1392821.
Trellue, Holly Renee, Trahan, Alexis Chanel, McMath, Garrett Earl, Swinhoe, Martyn Thomas, Hu, Jianwei, Worrall, Andrew, Ilas, Germina, & Grogan, Brandon. Fiscal Year (FY) 2017 Activities for the Spent Fuel Nondestructive Assay Project. United States. doi:10.2172/1392821.
Trellue, Holly Renee, Trahan, Alexis Chanel, McMath, Garrett Earl, Swinhoe, Martyn Thomas, Hu, Jianwei, Worrall, Andrew, Ilas, Germina, and Grogan, Brandon. Mon . "Fiscal Year (FY) 2017 Activities for the Spent Fuel Nondestructive Assay Project". United States. doi:10.2172/1392821. https://www.osti.gov/servlets/purl/1392821.
@article{osti_1392821,
title = {Fiscal Year (FY) 2017 Activities for the Spent Fuel Nondestructive Assay Project},
author = {Trellue, Holly Renee and Trahan, Alexis Chanel and McMath, Garrett Earl and Swinhoe, Martyn Thomas and Hu, Jianwei and Worrall, Andrew and Ilas, Germina and Grogan, Brandon},
abstractNote = {The main focus of research in the NA-241 spent fuel nondestructive assay (NDA) project in FY17 has been completing the fabrication and testing of two prototype instruments for upcoming spent fuel measurements at the Clab interim storage facility in Sweden. One is a passive instrument: Differential Die-away Self Interrogation-Passive Neutron Albedo Reactivity (DDSI), and one is an active instrument: Differential Die-Away-Californium Interrogation with Prompt Neutron (DDA). DDSI was fabricated and tested with fresh fuel at Los Alamos National Laboratory in FY15 and FY16, then shipped to Sweden at the beginning of FY17. Research was performed in FY17 to simplify results from the data acquisition system, which is complex because signals from 56 different 3He detectors must be processed using list mode data. The DDA instrument was fabricated at the end of FY16. New high count rate electronics better suited for a spent fuel environment (i.e., KM-200 preamplifiers) were built specifically for this instrument in FY17, and new Tygon tubing to house electrical cables was purchased and installed. Fresh fuel tests using the DDA instrument with numerous configurations of fuel rods containing depleted uranium (DU), low enriched uranium (LEU), and LEU with burnable poisons (Gd) were successfully performed and compared to simulations.1 Additionally, members of the spent fuel NDA project team travelled to Sweden for a “spent fuel characterization and decay heat” workshop involving simulations of spent fuel and analysis of uncertainties in decay heat calculations.},
doi = {10.2172/1392821},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 11 00:00:00 EDT 2017},
month = {Mon Sep 11 00:00:00 EDT 2017}
}

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