High Proton Polarization by Microwave-Induced Optical Nuclear Polarization at 77 K
Physical Review Letters Volume 84 Issue 1
Page 171-174
published_at 2000-01-03
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| File | |
| Title ( eng ) |
High Proton Polarization by Microwave-Induced Optical Nuclear Polarization at 77 K
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| Creator |
Takahashi Yoshiro
Shake Ippei
Oda Masahiro
Masaike Akira
Yabuzaki Tsutomu
Shimizu Hirohiko M.
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| Source Title |
Physical Review Letters
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| Volume | 84 |
| Issue | 1 |
| Start Page | 171 |
| End Page | 174 |
| Abstract |
Protons in naphthalene and p-terphenyl doped with pentacene have been polarized up to 32% and 18%, respectively, at liquid nitrogen temperature in a magnetic field of 0.3 T by means of microwave-induced optical nuclear polarization. The polarization was measured by nuclear magnetic resonance as well as by the neutron transmission method. The relaxation time of the proton polarization at 0.0007 T and 77 K was found to be almost 3 h and the polarization enhancement reached a record value of 8 × 104. The usefulness of the method in many areas of physics and chemistry is discussed.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2000-01-03 |
| Rights |
Copyright (c) 2000 The American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.84.171
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.84.171
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