Elsevier

Nuclear Physics A

Volume 113, Issue 1, 24 May 1968, Pages 134-144
Nuclear Physics A

Énergies et intensités des raies γ dans la capture des neutrons thermiques par le strontium

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Abstract

The neutron capture γ-ray spectra of the reaction Sr(n, γ) have been investigated using a Ge(Li) spectrometer. A pure thermal neutron beam is obtained by Bragg reflection from a lead crystal. A total of 144 gamma lines has been observed. A neutron separation energy of 8 428.5±2.5 keV for 87Sr and 11 113.5±1.5 keV for 88Sr was deduced. The intensities per 100 neutrons captured have been evaluated for a large number of transitions, specially in 88Sr. A transition scheme is proposed and discussed for 87Sr and 88Sr.

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