An atomic beam polarimeter to measure the nuclear polarization in the HERMES gaseous polarized hydrogen and deuterium target

被引：52

作者：

Baumgarten, C

Braun, B

Court, G

Ciullo, G

Ferretti, P

Golendukhin, A

Graw, G

Haeberli, W

Henoch, M

Hertenberger, R

Koch, N

Kolster, H

Lenisa, P

Nass, A

Pod'yachev, SP

Reggiani, D

Rith, K

Simani, MC

Steffens, E

Stewart, J

Wise, T

机构：

[1] Univ Munich, Sekt Phys, D-85748 Garching, Germany

[2] Univ Erlangen Nurnberg, Inst Phys, D-91058 Erlangen, Germany

[3] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[4] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England

[5] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy

[6] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

[7] Vrije Univ Amsterdam, Dept Phys & Astron, NL-1081 Amsterdam, Netherlands

[8] RAS, SB, Inst Automat & Electrometry, Moscow, Russia

[9] DESY Zeuthen, D-15738 Zeuthen, Germany

[10] Yerevan Inst, Yerevan 375036, Armenia

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2002年 / 482卷 / 03期

基金：

美国国家科学基金会;

关键词：

polarized targets; polarimeters; detection of atomic beams; spin-polarized hydrogen; hyperfine interactions;

D O I：

10.1016/S0168-9002(01)01738-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An atomic beam polarimeter for measurement of the hyperfine population numbers and the absolute polarization of thermal atomic hydrogen (H) and deuterium (D) beams is described. The principle of measurement and the method of calibration are given. The polarimeter measures the 4 (6) relative hyperfine population numbers of a thermal H (D) beam in the region of 10(13) atoms s(-1) to an absolute error of less than 0.01. The polarimeter has been in continuous operation with the internal polarized hydrogen and deuterium gas target used in the HERMES experiment at DESY since 1996. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：606 / 618

页数：13

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