Pulsed magnetic field method for measuring polarization of radioactive beams

被引：5

作者：

Anthony, DW ^{[1
]}

Mantica, PF

Morrissey, DJ

Georgiev, G

机构：

[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[2] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA

[3] Univ Louvain, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium

来源：

HYPERFINE INTERACTIONS | 2000年 / 127卷 / 1-4期

关键词：

D O I：

10.1023/A:1012686205387

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A new method has been developed for measuring the magnitude of nuclear spin polarization of a secondary, radioactive beam by making a pulsed magnetic field measurement that does not require advance knowledge of the nuclide's magnetic moment. Using a standard beta-NMR apparatus, a magnetic double ratio is determined from the counting rates in 0 degrees and 180 degrees beta detectors for magnetic field on and off conditions. This ratio provides direct information on the induced spin polarization of a radioactive beam. A demonstration of the method was performed using spin-polarized B-12 nuclei produced by fragmentation of an 80 MeV/nucleon O-18 beam in a Nb target.

引用

页码：485 / 488

页数：4

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