New measurements and quantitative analysis of electron backscattering in the energy range of neutron β-decay -: art. no. 015501

被引：19

作者：

Martin, JW ^{[1
]}

Yuan, J

Betancourt, MJ

Filippone, BW

Hoedl, SA

Ito, TM

Plaster, B

Young, AR

机构：

[1] CALTECH, WK Kellogg Radiat Lab, Pasadena, CA 91125 USA

[2] N Carolina State Univ, Raleigh, NC 27695 USA

[3] Univ Washington, CENPA, Seattle, WA 98195 USA

[4] Univ Winnipeg, Dept Phys, Winnipeg, MB R3B 2E9, Canada

来源：

PHYSICAL REVIEW C | 2006年 / 73卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.73.015501

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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.

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