Bibliographic Details
| Title: |
High proton polarization at high temperature with single crystals of aromatic molecules |
| Authors: |
Iinuma, M.1 iinuma@hiroshima-u.ac.jp, Takahashi, Y.1, Shaké, I.1, Oda, M.1, Masaike, A.1, Yabuzaki, T.1, Shimizu, H.M.2 |
| Source: |
Nuclear Instruments & Methods in Physics Research Section A. Aug2004, Vol. 529 Issue 1-3, p199-203. 5p. |
| Subjects: |
Polarization (Nuclear physics), Protons, Aromatic compounds, Magnetic fields |
| Abstract: |
Protons in single crystals of naphthalene doped with pentacene and p-terphenyl doped with pentacene have been polarized up to 32% and 18%, respectively. Such polarization has been achieved at liquid nitrogen temperature in a magnetic field of 3 kG by means of microwave-induced optical nuclear polarization. We also measured the polarization by the neutron transmission method. The relaxation time at 77 K in 7 G was found to be about 3 h and the enhancement of the obtained polarization compared with thermal polarization reached 8×104. This method is applicable to neutron experiments. [Copyright &y& Elsevier] |
|
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| Database: |
Engineering Source |
