## NUCLEAR CROSS SECTION CALCULATIONS WITH A SIMPLIFIED-INPUT VERSION OF ELIESE-GNASH JOINT PROGRAMNippon Atomic Industry Group Co. Ltd.,NAIG Nuclear Research Laboratory Ukishima-cho, Kawasaki-ku, Kawasaki 210 Japan To calculate the nuclear cross sections with a statistical and preequilibrium model as efficiently and easily as possible, a simplified- input version of ELIESE-GNASH joint program has been developed. The program has a simple input-format and a set of global optical model potential parameters. Using the present version, neutron cross sections for 25 nuclides covering the range from ^{27}Al to ^{109}Ag were calculated up to 20 MeV. The 50 MeV neutron induced reaction for copper, and the proton and alpha-particle induced reactions for ^{58}Ni were also calculated. As the result of general agreements with experimental data for wide mass range, the availability of the present version of joint program is proved.KEYWORDS: cross section, statistical model, preequilibrium model, global optical potential, neutron, proton, alpha-particle, calculation |