Publication Type
Journal
Journal Name
Physical Review C
Publication Date
Page Number
014309
Volume
88
Issue
1
Abstract
Short–lived neutron–rich nuclei including 93 Br, 93 Kr and 94 Kr were produced in proton–induced
fission of 238 U at the HRIBF in Oak Ridge. Their beta decay was studied by means of a high resolution on–line mass separator and beta–gamma spectroscopy methods. The half–life of
93Br T1/2 = 152(8) ms and β–delayed branching ratio of Pn = 53-8+11 may be compared to the previously reported values of T1/2 = 102(10) ms and Pn = 68(7)%. At the same time the half–life of 94Kr T1/2 = 227(14) ms and B–delayed branching ratio of Pn = 1.9+0.6−0.2 % of 93Kr
are in very good agreement with literature values. The decay properties of 93Br include four new
gamma transitions following beta–delayed neutron emission.
