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 journalArticlepeer-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 languageEnglish
    Pages (from-to)521-534
    Number of pages14
    JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
    Volume550
    Issue number3
    DOIs
    Publication statusPublished - 2005 Sep 21

    Keywords

    • Aromatic molecules
    • Polarized target
    • Unstable nuclei

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Instrumentation

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