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Elsevier, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, (759), p. 50-64

DOI: 10.1016/j.nima.2014.05.057

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A Time Projection Chamber for High Accuracy and Precision Fission Cross Section Measurements

Journal article published in 2014 by Collaboration Niffte, M. Heffner, D. M. Asner, R. G. Baker, J. Baker, S. Barrett, C. Brune, J. Bundgaard, E. Burgett, D. Carter, M. Cunningham, J. Deaven, D. L. Duke, U. Greife, S. Grimes and other authors.
This paper is available in a repository.
This paper is available in a repository.

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Abstract

The fission Time Projection Chamber (fissionTPC) is a compact (15 cm 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 4$π$ 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.