Gamma Rays from Thermal Neutron Capture in Cl, V, Mn, and Co
1964; American Institute of Physics; Volume: 136; Issue: 6B Linguagem: Inglês
10.1103/physrev.136.b1640
ISSN1536-6065
AutoresO.A. Wasson, K. J. Wetzel, C. K. Bockelman,
Tópico(s)Radiation Detection and Scintillator Technologies
ResumoThe high-energy $\ensuremath{\gamma}$ rays (${E}_{\ensuremath{\gamma}}>5$ MeV) emitted in thermal-neutron capture by Cl, V, Mn, and Co have been observed with 20-keV resolution using a single lithium-drifted germanium detector and paraffin-moderated Pu-Be neutrons. The previously reported ground-state $\ensuremath{\gamma}$ rays in Mn and V are found to contain primary transitions to the first excited states near 20-keV excitation. In addition, previously unreported lines in all four elements have been observed; most of these have been identified as primary transitions to levels known from ($d, p$) studies. Little correlation between the reduced $\ensuremath{\gamma}$-ray strengths $\frac{{I}_{\ensuremath{\gamma}}}{{{E}_{\ensuremath{\gamma}}}^{3}}$ from the ($n, \ensuremath{\gamma}$) reaction, and the relative transition strengths $(2J+1)S$ from the ($d, p$) reaction, is observed in Co and V.
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