Projectile fission at relativistic velocities: a novel and powerful source of neutron-rich isotopes well suited for in-flight isotopic separation

β-decay properties of the very neutron-rich isotopesGe86andAsMazzocchi1, Rykaczewski2, Grzywacz3 et al. 2015Phys. Rev. C8150View full textAdd to dashboardCite

“…ending with the selenium isotopes. Before this measurement, a few events of 86 Ge had been observed in projectile fission of 238 U and a lower limit of 150 ns for its half-life was established [1]. Part of the data, namely the half-life measurement, was published in Ref.…”

Scaling laws inHe3induced nuclear fission

“…An investigation of fission delay times gave an upper limit of 3×10 −20 seconds. In this paper, we show the results of a recent experiment investigating 3 He induced fission of the compound nuclei 200 Tl, 211 Po, and 212 At at excitation energies between 25 and 145 MeV. These fissioning systems bracket the closed shell region around 208 Pb, and due to the strong shell effects, the analysis of these systems represents a sensitive test of the method introduced in Ref.…”

“…While the availability of relativistic heavy ions has enabled the study of several aspects of the fission process in the high energy region [2][3][4][5][6][7][8], it has been shown recently that a new approach [9] to investigate excitation functions of low energy, light particle induced fission allows for the model independent extraction of fundamental quantities of the fission process, like fission barriers, shell effects, and the much discussed fission delay time (see e.g. Refs.…”

“…[12,14,29]. Becchetti et al have, in particular, measured 3 He induced fission excitation functions of several nuclei with masses between 159 and 232 at bombarding energies ranging from 19.1 to 44.5 MeV [30]. Their analysis with statistical fission theory indicates fission barriers which, in contrast to heavy ion induced fission, differ only slightly from liquid drop model predictions.…”

Microscopic description of fission dynamics: Toward a 3D computation of the time dependent GCM equation

“…Since the 90s, experimental efforts on inverse kinematics reactions fall in with this trend by providing extremely accurate yields data for various fissioning nuclei [1][2][3][4]. On the other side, building a predictive theory of fission applicable where no data is available remains a major challenge of nuclear physics.…”