A compact 3H(p,γ)4He 19.8-MeV gamma-ray source for energy calibration at the Sudbury Neutrino Observatory

被引：29

作者：

Poon, AWP

Komar, RJ

Waltham, CE

Browne, MC

Robertson, RGH

Kherani, NP

Mak, HB

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci,Dept Phys & Astron, Inst Nucl & Particle Astrophys, Berkeley, CA 94720 USA

[2] Univ Washington, Phys Nucl Lab, Seattle, WA 98195 USA

[3] Ontario Hydro Technol, Div Res, Toronto, ON M8Z 5S4, Canada

[4] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 452卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0168-9002(00)00424-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Sudbury Neutrino Observatory (SNO) is a new 1000-t D2O Cherenkov solar neutrino detector. A high-energy gamma-ray source is needed to calibrate SNO beyond the B-8 solar neutrino endpoint of 15 MeV. This paper describes the design and construction of a source that generates 19.8-MeV gamma rays using the H-3(p,gamma)He-4 reaction ("pT"), and demonstrates that the source meets all the physical, operational and lifetime requirements for calibrating SNO. An ion source was built into this unit to generate and to accelerate protons up to 30 keV, and a high-purity scandium tritide target with a scandium-tritium atomic ratio of 1:2.0 +/- 0.2 was included. This pT source is the first self-contained, compact, and portable high-energy gamma-ray source(E-gamma > 10 MeV). (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：115 / 129

页数：15