Angular Dependence of the Neutron-Induced Fission Process. II

Anisotropy in fission fragment and prompt neutron angular distributions

“…Angular anisotropies of fission fragments as a function of incident neutron energy have been measured for several fissile targets [17][18][19][20][21][22][23][24][25][26][27] and have been shown to change as the incident energy increases. It was postulated [8] that this preferential direction of fragment emission comes from the transition states in the compound nucleus that are populated at the outer saddle point.…”

Neutron-Induced Fission Cross Section ofPu238

“…However, there is a certain amount of difficulty associated with obtaining a complete separation of the a groups for 235 U and 234 U as well as determining accurate half-lives 12 J. G. Povelites, Atomic Energy Research Establishment Report, R-5097, 1965 (unpublished). 18 H. L. Smith and J. P. Balagna, Proceedings of the Conference on Neutron Cross-section Technology, Washington, D. C, 1966 (unpublished), and yields for these isotopes. Therefore, the specific a activity as determined by Smith and Balagna using titration is used as the primary data for relating the a count to mass for our foils.…”

A review of thermal homogeneous catalytic deoxygenation reactions for valuable products

“…The Henkel process, also known as the Raecke process (Brolley et al, 1955), is widely used for converting the aromatic carboxylates into symmetrical aromatic dicarboxylates via thermal rearrangement with alkali metals. As shown in Figure 2, the process requires not only alkali salts as a catalyst but also a high temperature (e.g., 350-500 C) and should be operated in inert conditions (Kucera and Jancar, 1998).…”