Development of a twin grid back-to-back ionization chamber for fast neutron induced fission studies

A Twin Grid Back-To-Back (BTB) ionization chamber with an X-ray detector port has been developed for the purpose of studying the Mass, Total Kinetic Energy and Charge distributions of Fission fragments in the fast neutron induced fission of actinides. Fast neutron-induced fission of actinides is important for energy applications since fragment yields influence reactor function through the total energy release, and the production of long-lived waste. Though thermal neutron induced fission data is abundantly available, the data on isotopic and charge yields at energies relevant for Gen-IV reactors (2-5 MeV) are extremely sparse. It should also be noted that, besides the applications, the energy partitioning in the fission process is also a matter of intense investigation both experimentally and theoretically