NMR signal analysis in the large COMPASS $^{14}$NH$_{3}$ target

In the large COMPASS polarized proton target the 1508 cm$^{3}$ of irradiated granular ammonia is polarized with dynamic nuclear polarization method using 4 mm microwaves in 2.5 T eld. The nuclear polarization up to 90 - 93 % is determined with cw NMR. The properties of the observed ammonia proton si...

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Detalles Bibliográficos
Autores principales: Koivuniemi, J, Gautheron, F, Hess, C, Kisselev, Y U, Meyer, W, Radtke, E, Reicherz, G, Doshita, N, Iwata, T, Kondo, K, Michigami, T
Lenguaje:eng
Publicado: 2009
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1495644
Descripción
Sumario:In the large COMPASS polarized proton target the 1508 cm$^{3}$ of irradiated granular ammonia is polarized with dynamic nuclear polarization method using 4 mm microwaves in 2.5 T eld. 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 elds is presented. Also the second moment of the NMR line is estimated.

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