A precision Lamb-shift polarimeter for the polarized gas target at ANKE/COSY

被引：0

作者：

Engels, R ^{[1
]}

Emmerich, R ^{[1
]}

Ley, J ^{[1
]}

Mikirtytchiants, M ^{[1
]}

Schieck, HPG ^{[1
]}

Rathmann, F ^{[1
]}

Seyfarth, H ^{[1
]}

Vassiliev, A ^{[1
]}

机构：

[1] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany

来源：

SPIN 2002 | 2003年 / 675卷

关键词：

D O I：

暂无

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：

The Lamb-shift polarimeter [1], described here, allows the polarization measurement of a beam of hydrogen (deuterium) atoms, or of a slow proton (deuteron) beam (500 - 2000 eV) with an absolute precision better than 1% within a few s. For a hydrogen beam of 3.10(16) atoms/s, 3.10(6) photons/s are registered in a photomultiplier. The signal-to-background ratio in the Lyman-alpha spectrum is excellent, thus beam intensities of one to two orders of magnitude less would still be sufficient to carry out a precise measurement. Therefore, it will be possible to extract a few percent of the atoms from a storage cell to measure the polarization in the cell. In order to obtain absolute nuclear polarization values the polarization derived from the Lyman-alpha spectrum has to be corrected by a number of correction factors calculated with high precision from the behaviour of different components of the polarimeter.

引用

页码：897 / 901

页数：5

共 50 条

[41] PULSE-OPERATED POLARIZED H- SOURCE OF LAMB-SHIFT TYPE [J].

MORI, Y ;

TAKAGI, A ;

KOBAYASHI, M ;

WAKUTA, Y ;

FUKUMOTO, S ;

KIKUCHI, K ;

SONODA, M .

NUCLEAR INSTRUMENTS & METHODS, 1977, 141 (02) :383-386

[42] WORKING GROUP SUMMARY - POTENTIAL IMPROVEMENTS IN LAMB-SHIFT POLARIZED ION SOURCES [J].

CLEGG, TB .

AIP CONFERENCE PROCEEDINGS, 1982, (80) :39-44

[43] High intensity duoplasmatron with low energy for the Lamb-shift polarized ion source [J].

Wang, Rongwen ;

Chen, Quan ;

Shi, Shumei ;

Li, Liqiang .

Yuanzineng Kexue Jishu/Atomic Energy Science and Technology, 1997, 31 (03) :238-241

[44] A FUNDAMENTAL LIMIT TO THE POLARIZED CURRENT-DENSITY PRODUCED BY THE LAMB-SHIFT POLARIZED ION-SOURCE [J].

BENAGE, JF ;

STEVENS, RR ;

STERN, RA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1989, 274 (1-2) :13-20

[45] Nuclear polarization measurement of H/D atoms extracted from a storage cell with a Lamb-shift polarimeter [J].

Engels, R ;

Emmerich, R ;

Grigoriev, K ;

Ley, J ;

Mikirtytchiants, M ;

Rathmann, R ;

Sarkadi, J ;

Schieck, HPG ;

Seyfarth, H ;

Tenckhoff, G ;

Ullrich, T ;

Vassiliev, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2005, 536 (03) :334-337

[46] INSTALLATION OF LASL LAMB-SHIFT POLARIZED-ION SOURCE ON AN FN TANDEM ACCELERATOR [J].

MCKIBBEN, JL ;

LAWRENCE, GP ;

OHLSEN, GG .

BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1968, 13 (11) :1443-&

[47] THE APPLICATION OF THE ELECTRON-CYCLOTRON RESONANCE SOURCE TO LAMB-SHIFT POLARIZED ION SOURCES [J].

CLEGG, TB ;

SCHMOR, PW ;

JACQUOT, C ;

DELAUNAY, M ;

ROCCO, JC ;

GELLER, R ;

ROY, G .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, 1983, 212 (1-3) :5-12

[48] Precision Lamb-shift measurement in hydrogenic nitrogen by fast-beam laser spectroscopy [J].

Myers, EG ;

Hankins, R ;

Silver, JD ;

Tarbutt, MR .

HYPERFINE INTERACTIONS, 2000, 127 (1-4) :329-332

[49] PRECISION LAMB-SHIFT MEASUREMENT IN N=2 STATE OF LI-6-2+ [J].

LEVENTHAL, M ;

HARVEY, PE .

PHYSICAL REVIEW LETTERS, 1974, 32 (15) :808-811

[50] Study of coherent pion production in proton-deuteron collisions with polarized beams and target at ANKE-COSY [J].

Dymov, S. ;

Shmakova, V. .

MESON 2016 - 14TH INTERNATIONAL WORKSHOP ON MESON PRODUCTION, PROPERTIES AND INTERACTION, 2016, 130

← 1 2 3 4 5 →