SEPARATION OF GAMMA-RAYS PRODUCTION FROM $^{13}C(p,;{gamma})^{14}N,;^{14}N({gamma},;{gamma})^{14}N$ REACTIONS USING DOPPLER SHIFT EFFECT
Kim, Y.K.;Ha, J.H.;Youn, M.;Han, S.H.;Chung, C.E.;Moon, B.S.;
ABSTRACT
The 9.17MeV gamma-rays from the $^{13}C(p,;{gamma})^{14}N,;^{14}N({gamma},;{gamma})^{14}N$ reactions were measured. The incident 9.17MeV gamma-ray was produced from the $^{13}C(p,;{gamma})^{14}N$ reaction at Ep=1.75MeV resonance. The 1.75MeV proton beam was accelerated using the 3MV SNU-AMS Tandetron and 1.7MV KIGAM Tandem accelerators. The enriched 13C target was $121{mu}g/cm^2$ self-supporting foil, and we used liquid nitrogen as a resonant absorption target. We used a HP-Ge detector with 30% efficiency and less 2keV energy resolution. We developed new method to detect the scattered 9.17MeV gamma-ray from the nitrogen target by using the energy difference between the Doppler shifted gamma-ray from the $^{13}C(p,;{gamma})^{14}N$ reaction and the resonant absorbed and rescattered gamma-ray from the $^{14}N({gamma},;{gamma})^{14}N$ reaction.
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