Proton polarization with p-terphenyl crystal by integrated solid effect on photoexcited triplet state.
J Magn Reson
; 175(2): 235-41, 2005 Aug.
Article
in En
| MEDLINE
| ID: mdl-15922637
ABSTRACT
We have carried out the experiments for polarizing protons in single crystals of p-terphenyl doped with 0.1 mol% pentacene. The experiments have been performed in a magnetic field of 3 kG at room temperature or at 77 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 590 nm, the average power of 150 mW, and the repetition rate of 50 Hz. The polarization at 77 K reached 18% by irradiation with the dye-laser of 500 mW, 50 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.
Search on Google
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Magn Reson
Journal subject:
DIAGNOSTICO POR IMAGEM
Year:
2005
Document type:
Article
Affiliation country:
Japón