Proton polarizing system with Ar-ion laser for p→-RI scattering experiments

Takashi Wakui; M. Hatano; H. Sakai; T. Uesaka; A. Tamii

doi:10.1016/j.nima.2005.05.062

Proton polarizing system with Ar-ion laser for p→-RI scattering experiments

Takashi Wakui, M. Hatano, H. Sakai, T. Uesaka, A. Tamii

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

A proton polarizing system for use in scattering experiments with radioactive isotope beams is described. Protons in a naphthalene crystal doped with pentacene are polarized in a magnetic field of 0.3 T at 100 K by transferring a large population difference among the photo-excited triplet states of pentacene to the hydrogen nuclei. An Ar-ion laser, which demands minimal maintenance during scattering experiments, is employed to excite the pentacene molecules. A proton polarization of 37% is obtained.

Original language	English
Pages (from-to)	521-534
Number of pages	14
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	550
Issue number	3
DOIs	https://doi.org/10.1016/j.nima.2005.05.062
Publication status	Published - 2005 Sep 21

Keywords

Aromatic molecules
Polarized target
Unstable nuclei

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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Proton polarizing system with Ar-ion laser for p→-RI scattering experiments. / Wakui, Takashi; Hatano, M.; Sakai, H.; Uesaka, T.; Tamii, A.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 550, No. 3, 21.09.2005, p. 521-534.

Research output: Contribution to journal › Article › peer-review

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AU - Tamii, A.

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