APPLICATION OF INTRANUCLEAR CASCASE EVAPORATION MODEL FOR EVALUATION OF HELIUM AND TRANSMUTATION PRODUCT CROSS-SECTIONNeutron Physics Division Bhabha Atomic Research Centre Bombay 400 085, India For simulating neutron damage in materials needed for the design of fusion reactors, the application of high energy spallation neutrons are considered to be very promising. Feasibility study of such spallation neutron source for simulation of fusion reactor first wall is constrained by the lack of cross-section data for quantities like helium production, transmutation nuclide production etc. In this paper we discus the application of Intranuclear Cascade evaporation model for predicting neutron and proton induced helium and transmutation product cross-section and examine the effect of the variation of level density parameter on helium production cross-section. The elements used for this study are Fe, Cr, Mn and Ni for neutron and proton energy varying from 50 MeV to 600 MeV. Results indicate that helium production cross-section increases by a factor of three when neutron or proton energy increases from 50 to 600 MeV. KEYWORDS: spallation, helium, transmutation, neutron, proton, high energy |