Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9587415 | Journal of Magnetic Resonance | 2005 | 7 Pages |
Abstract
We have carried out the experiments for polarizing protons in single crystals of p-terphenyl doped with 0.1Â mol% pentacene. The experiments have been performed in a magnetic field of 3Â kG at room temperature or at 77Â K. We obtained the polarization of 1.3% for protons in bulk at room temperature by using a pulsed dye-laser with the wavelength of 590Â nm, the average power of 150Â mW, and the repetition rate of 50Â Hz. The polarization at 77Â K reached 18% by irradiation with the dye-laser of 500Â mW, 50Â Hz and the same wavelength. The polarization of protons was measured by the neutron transmission method also. The result was consistent with that measured by the nuclear magnetic resonance.
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Authors
M. Iinuma, Y. Takahashi, I. Shaké, M. Oda, A. Masaike, T. Yabuzaki, H.M. Shimizu,