Author/Authors :
Nakayama، نويسنده , , S. and Fushimi، نويسنده , , K. and Kohri، نويسنده , , H. and Akimune، نويسنده , , H. and Daito، نويسنده , , I. and Fujimura، نويسنده , , H. and Fujita، نويسنده , , Y. and Fujiwara، نويسنده , , M. and Inomata، نويسنده , , T. and Ishibashi، نويسنده , , K. and Iwawaki، نويسنده , , T. and Koori، نويسنده , , N. and Takahisa، نويسنده , , K. and Tamii، نويسنده , , A. and Tanaka، نويسنده , , M. and Toyokawa، نويسنده , , H. and Yamagata، نويسنده , , T.، نويسنده ,
Abstract :
A γ-ray detector system “NYMPHS” was built for 7Be-γ coincidence measurements to separate (7Li, 7Beg.s.) and (7Li, 7Be0.43MeV) channels in the (7Li, 7Be) reaction at intermediate energies. NYMPHS is composed of 22 GSO scintillators, each with a volume of about 30 cm3. A typical energy resolution was about 9% at Eγ = 0.66 MeV. The absolute detection efficiency of NYMPHS was 0.200 ± 0.005 for the 0.43 MeV 7Be γ-ray. NYMPHS combined with a magnetic spectrograph showed good performance for 7Be-γ coincidence measurements in the (7Li, 7Be) reactions on 12C and 90Zr targets at EL = 65A MeV.
Keywords :
(7Li , 7Be) charge exchange raction , GSO scintillator , 7Be-? coincidence
