Target operational experience at the spallation neutron source

B. W. Riemer, J. G. Janney, S. Kaminskas, D. A. McClintock, P. M. Rosenblad

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

The Spallation Neutron Source (SNS) at the Oak Ridge National Laboratory (ORNL) has operated at unprecedented power levels for a short-pulse spallation source. Target operations have been successful but not without difficulties. Three targets out of the eight used to date have ended life unexpectedly causing interruptions to the neutron science users. The first of a kind mercury target design experiences beam-pulse induced cavitation damage that is suspected in one of the target leaks. The two other targets suffered early failures due to defective welds. Diagnosing the causes of target leaks and understanding of the progression of cavitation erosion and radiation damage effects has made use of post-irradiation examination (PIE) capabilities. As a result of PIE, review of quality assurance practices and related investigations, design changes are being implemented and manufacturing oversight improved. This paper describes SNS target operating experience, including the more important observations and lessons learned.

Original languageEnglish
Title of host publication11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013
PublisherBelgian Nuclear Research Center
Pages359-365
Number of pages7
ISBN (Print)9781629938288
StatePublished - 2013
Externally publishedYes
Event11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013 - Bruges, Belgium
Duration: Aug 5 2013Aug 8 2013

Publication series

Name11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013

Conference

Conference11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013
Country/TerritoryBelgium
CityBruges
Period08/5/1308/8/13

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