Decay Scheme of 79 As
نویسنده
چکیده
7 9As. The 7 9As was prepared by irradiating metalic Se (enriched to 97 .8% in 8 0Se) in the linear accelerator of the C.B.P.F. The maximum energy of the bremsstrahlung beam was 22 MeV and irradiations were performed using up to 600 mg samples with irradiation times up to 30 min. The gamma-ray spectra were detected by a 2 cm 3 Ge(Li) diode. The pulses were fed via an O R T E C 1 0 9 preamplifier into an O R T E C 410 amplifier and displayed on a 4 0 9 6 channel Intertechnique analyser. The overall resolution ( F W H M ) of the system was of 4 keV for the photopeak of the 662 keV line of 137Cs.
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