The aCORN backscatter-suppressed beta spectrometer

被引：6

作者：

Hassan, M. T. ^{[1
]}

Bateman, F. ^{[2
]}

Collett, B. ^{[3
]}

Darius, G. ^{[1
]}

DeAngelis, C. ^{[1
]}

Dewey, M. S. ^{[2
]}

Jones, G. L. ^{[3
]}

Komives, A. ^{[4
,6
]}

Laptev, A. ^{[1
]}

Mendenhall, M. P. ^{[2
]}

Nico, J. S. ^{[2
]}

Noid, G. ^{[5
]}

Stephenson, E. J. ^{[5
]}

Stern, I. ^{[1
]}

Trull, C. ^{[1
]}

Wietfeldt, F. E. ^{[1
]}

机构：

[1] Tulane Univ, Dept Phys & Engn Phys, New Orleans, LA 70118 USA

[2] NIST, Gaithersburg, MD 20899 USA

[3] Hamilton Coll, Phys Dept, Clinton, NY 13323 USA

[4] DePauw Univ, Dept Phys & Astron, Greencastle, IN 46135 USA

[5] Indiana Univ, CEEM, Bloomington, IN 47408 USA

[6] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2017年 / 867卷

基金：

美国国家科学基金会;

关键词：

Electron spectroscopy; Scintillation detectors; Conversion electrons; Neutron decay; Electron backscatter; NEUTRON; DECAY; SPECTRUM; ENERGY; MODEL;

D O I：

10.1016/j.nima.2017.05.029

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Backscatter of electrons from a beta detector, with incomplete energy deposition, can lead to undesirable effects in many types of experiments. We present and discuss the design and operation of a backscatter-suppressed beta spectrometer that was developed as part of a program to measure the electron-antineutrino correlation coefficient in neutron beta decay (aCORN). An array of backscatter veto detectors surrounds a plastic scintillator beta energy detector. The spectrometer contains an axial magnetic field gradient, so electrons are efficiently admitted but have a low probability for escaping back through the entrance after backscattering. The design, construction, calibration, and performance of the spectrometer are discussed. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：51 / 57

页数：7

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