The decay of188Re

• DOI: 10.1007/bf02167429
• Publication Date: 2005-09-17T06:09:11Z
• Authors: L. Zhou; S. Wen; J. Zhao; B. Yu; B. Han; Ch. Yang
• Keywords: Branching fraction

The γ-ray spectra of188Re decay have been studied by using two Ge/Li/ spectrometers and a three parameters /E-E-T/ List coincidence system. The energies and relative intensities of 52 γ-rays and cascade relations of 14 γ-rays are determined. Ten new γ-rays: 155 /633–478/, 984, 1096, 1463, 1332, 1530, 1574, 1810, 1867, and 1937 keV have been identified. The 155 /633–478/ transition is confirmed and its relative intensity is estimated by means of coincidence experiment. 24 levels of188Re are assigned. Among those, 6 levels are first put into the decay scheme of188Re. In addition to 1443 keV and 1937 keV levels, 1685, 1729 and 1965 keV levels are also observed in the decay of188Ir and other reaction studies. The 1948 level is recently suggested in the190Os/p, t/188Os reaction. The 486 keV and 811 keV γ-transitions are also put into the level scheme of188Re. The β− decay branching ratio is deduced.