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New measurements and quantitative analysis of electron backscattering in the energy range of neutron beta-decay

Martin, J. W. and Yuan, J. and Betancourt, M. J. and Filippone, B. W. and Hoedl, S. A. and Ito, T. M. and Plaster, B. and Young, A. R. (2006) New measurements and quantitative analysis of electron backscattering in the energy range of neutron beta-decay. Physical Review C, 73 (1). Art. No. 015501. ISSN 0556-2813. doi:10.1103/PhysRevC.73.015501.

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We report on the first detailed measurements of electron backscattering from plastic scintillator targets, extending our previous work on beryllium and silicon targets. The scintillator experiment posed several additional experimental challenges associated with charging of the scintillator target, and those challenges are addressed in detail. In addition, we quantitatively compare the energy and angular distributions of this data, and our previous data, with electron transport simulations based on the GEANT4 and PENELOPE Monte Carlo simulation codes. The PENELOPE simulation is found globally to give a superior description of the data. Such information is crucial for a broad array of weak-interaction physics experiments, where electron backscattering can give rise to the dominant detector-related systematic uncertainty.

Item Type:Article
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Filippone, B. W.0000-0002-2618-2688
Ito, T. M.0000-0003-3494-6796
Additional Information:©2006 The American Physical Society (Received 5 August 2005; published 25 January 2006) We gratefully acknowledge the technical support of Robert Carr at the California Institute of Technology. This work was supported by the National Science Foundation. One of us (J.W. M) is supported by the Natural Sciences and Engineering Research Council of Canada.
Subject Keywords:Monte Carlo methods; electron-nucleus reactions; beta-decay
Issue or Number:1
Record Number:CaltechAUTHORS:MARprc06
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3562
Deposited By: Archive Administrator
Deposited On:15 Jun 2006
Last Modified:08 Nov 2021 19:57

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