Japanese evaluation of photonuclear data

The present status of evaluation work for photonuclear data is described. The photonuclear data working group aims to evaluate the photonuclear cross sections for every natural isotopes, some transuranic nuclei and several fission products up tp 140 MeV. The photonuclear data file is to be made using ENDF-6 format. The following kinds of the cross sections are evaluated: absorption, photoneutron, photoproton, photoneutron yield, photoproton yield, neutron energy spectra, proton energy spectra and nuclide production cross sections. Theoretical evaluation as well as experimental data evaluation are employed. Nuclear model calculation based on pre-equilibrium and evaporation model is carried out and reproduce experimental data quite well. Evaluation for d, 12C, 14N, 16O, 23Na, 24,25,26Mg, 27Al, 28,29,30Si, 40,48Ca, 46,48Ti, 51V, 52Cr, 55Mn, 54,56Fe, 59Co, 58,60Ni, 63,65Cu, 64Zn, 90Zr, 92,94,96,98,100Mo, 93Nb, 133Cs, 181Ta, 186W, 197Au, 206,207,208Pb, 209Bi and 235,238U have been completed. A photonuclear data index like CINDA was made and is bibliographic references to the data which have been published since 1950. (author)