Proton polarization at room temperature (original) (raw)

1995

Abstract

We have polarized protons in naphthalene doped with pentacene at higher temperature (>=77 K) and lower magnetic field (~3 kG) than those for ordinary polarized proton targets. Pentacene molecules have been excited with a laser beam. Protons in naphthalene have been polarized dynamically on the intermediate state of pentacene. We obtain about 13% polarization at liquid nitrogen temperature in about

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