The study of prompt and delayed muon induced fission

Muon capture rates in233U,234U,235U,236U,238U, and237Np

“…For 234U no previous results exist. The lifetimes given in [17][18][19] for 237Np are consistently higher than the values obtained in the present work and in [13]. In order to calculate the total capture rates A~, the electron decay of the bound muon is taken into account according to…”

“…We have, therefore, fitted the sum rules (2), (3) and (4) to the capture rates of a set of 91 isotopes using the experimental values quoted in the recent compilation of Suzuki et al [25] together with those from [13] and with our present results. The weighted mean values were calculated for isotopes with more than one measurement reported.…”

The study of prompt and delayed muon induced fission

“…The results presented here have been obtained in different experiments [9,12,13] performed at the Paul-Scherrer-Institute using the ~E4 muon beam.…”

“…In the experimental setups described earlier in Part I and in Part II of this study [9,12], the fission fragments of several isotopes have been registered in semiconductor detectors. Either both fragments have been measured in coincidence (for the purpose of fission fragment spectroscopy [9]) or only one of the fragments has been measured [12].…”

“…From this measurement [ 13] the ratios of prompt to delayed fission yields have presently been deduced for the isotopes 233U, 234U, 235U, 236U, 238U, and 237Np and are presented in this publication. For more details concerning the experimental arrangements see [9,12,13]. For more details concerning the experimental arrangements see [9,12,13].…”