A time projection chamber for high accuracy and precision fission cross-section measurements

M Heffner,D M Asner, R G Baker,J B H Baker, Sean D Barrett,Carl Richard Brune,J Bundgaard,Eric Burgett, D A Carter,M J Cunningham, J M Deaven, D L Duke,U Greife,S M Grimes,U Hager,N E Hertel,T S Hill, D Isenhower,K Jewell,J King,J Klay, V Kleinrath,N Kornilov, Ryuho Kudo,A B Laptev,Mary B Leonard,W Loveland,T N Massey, Christopher A Mcgrath, R Meharchand,Leonel Arias Montoya, Nathan Pickle,H Qu,Vincent Riot,J Ruz,S Sangiorgio, B Seilhan,S Sharma,Lawrence Snyder,S Stave,G Tatishvili,R T Thornton,F Tovesson,D Towell,R S Towell, Stephen P Watson, B Wendt, L E Wood,Limin Yao

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2014）

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摘要

The fission Time Projection Chamber (fissionTPC) is a compact (15cm diameter) two-chamber MICROMEGAS TPC designed to make precision cross-section measurements of neutron-induced fission. The actinide targets are placed on the central cathode and irradiated with a neutron beam that passes axially through the TPC inducing fission in the target. The 4π acceptance for fission fragments and complete charged particle track reconstruction are powerful features of the fissionTPC which will be used to measure fission cross-sections and examine the associated systematic errors. This paper provides a detailed description of the design requirements, the design solutions, and the initial performance of the fissionTPC.

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关键词

TPC,Detectors,Fission,Time Projection Chamber

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