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chapterNo Access
PROTON NMR IN THE LARGE COMPASS ¹⁴NH₃ TARGET
- J. Koivuniemi,
- F. Gautheron,
- C. Hess,
- Y. Kisselev,
- W. Meyer,
- E. Radtke,
- G. Reicherz,
- N. Doshita,
- T. Iwata,
- K. Kondo,
- T. Michigami, and
- for the COMPASS collaboration
Polarized Sources, Targets and Polarimetry01 Jan 2011
Preview Abstract
In the large COMPASS polarized proton target the 1508 cm³ of irradiated granular ammonia is polarized with the dynamic nuclear polarization method using 4 mm microwaves in 2.5 T field. The nuclear polarization up to 90–93 % is determined with CW NMR. The properties of the observed ammonia proton signals are described and spin thermodynamics in high fields is presented. Also the second moment of the NMR line is estimated.

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