uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Experimental and Analytical Plans for the Non-destructive Assay System of the Swedish Encapsulation and Repository Facilities
Los Alamos National Laboratory.
Svensk Kärnbränslehantering AB.
Los Alamos National Laboratory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Show others and affiliations
2014 (English)Conference paper (Other academic)
Abstract [en]

The Swedish Nuclear Fuel and Waste Management Company (SKB), European Atomic Energy Community (Euratom), two universities and several U.S. Department of Energy Laboratories have joined in a collaborative research effort to determine the capability of non-destructive assay (NDA) techniques to meet the combined needs of the safeguards community and the Swedish encapsulation and repository facilities operator SKB. These needs include partial defect detection, heat quantification, assembly identification (initial enrichment, burnup and cooling time), and Pu mass and reactivity determination. The experimental component of this research effort involves the measurement of 50 assemblies at the Central Storage of Spent Nuclear Fuel (Clab) facility in Sweden, 25 of which were irradiated in Pressurized Water Reactors and 25 in Boiling Water Reactors. The experimental signatures being measured for all assemblies include spectral resolved gammas (HPGe and LaBr3), time correlated neutrons (Differential Die-away Self Interrogation), time-varying and continuous active neutron interrogation (Differential Die-away and an approximation of Californium Interrogation Prompt Neutron), total neutron and total gamma fluxes (Fork Detector), total heat (assembly length calorimeter) and possibly the Cerenkov light emission (Digital Cerenkov Viewing Device). This paper fits into the IAEA’s Department of Safeguards Long-Term R&D Plan in the context of developing “more sensitive and less intrusive alternatives to existing NDA instruments to perform partial defect test on spent fuel assembly prior to transfer to difficult to access storage,” as well as potentially supporting pyrochemical processing. The work describes the specific measured signatures, the uniqueness of the information contained in these signatures and why a data mining approach is being used to combine the various signatures to optimally satisfy the various needs of the collaboration. This paper will address efficient and effective verification strategies particularly in the context of encapsulation and repository facilities.

Place, publisher, year, edition, pages
National Category
Subatomic Physics
URN: urn:nbn:se:uu:diva-257190OAI: oai:DiVA.org:uu-257190DiVA: diva2:838685
IAEA Symposium on International Safeguards: Linking Strategy, Implementation and People
Available from: 2015-07-01 Created: 2015-07-01 Last updated: 2015-08-27

Open Access in DiVA

No full text

Other links

Paper at IAEA

Search in DiVA

By author/editor
Grape, SophieJacobsson Svärd, StaffanJansson, Peter
By organisation
Applied Nuclear Physics
Subatomic Physics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 518 hits
ReferencesLink to record
Permanent link

Direct link