Laser-driven polarized H/D sources and targets

被引：0
|
作者：
Clasie, B
Crawford, C
Dutta, D
Gao, H
Seely, J
Xu, W
机构：
[1] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA
[2] Duke Univ, Triangle Univ Nucl Lab, Durham, NC 27708 USA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2005年 / 536卷 / 03期
关键词：
polarized hydrogen/deuterium gas target; spin-exchange optical pumping;
D O I：
10.1016/j.nima.2004.08.082
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Traditionally, Atomic Beam Sources are used to produce targets of nuclear polarized hydrogen (H) or deuterium (D) for experiments using storage rings. Laser-Driven Sources (LDSs) offer a factor of 20-30 gain in the target thickness (however, with lower polarization) and may produce a higher overall figure of merit. The LDS is based on the technique of spin-exchange optical pumping where alkali vapor is polarized by absorbing circularly polarized laser photons. The H or D atoms are nuclear-polarized through spin-exchange collisions with the polarized alkali vapor and through subsequent hyperfine interactions during frequent H-H or D-D collisions. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：260 / 265
页数：6
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