Study of Residual Product Nuclide Yields in 1.0 GeV Proton-Irradiated 208-Pb and 2.6 GeV Proton-Irradiated nat-W Thin Targets

摘要

113 residual product nuclide yields in a 1.0 GeV proton-irradiated thinmonoisotopic 208-Pb sample and 107 residual product nuclide yields in a 2.6 GeVproton-irradiated nat-W sample have been measured and simulated by 8 differentcodes. The irradiations were made using proton beams extracted from the ITEPsynchrotron. The nuclide yields were gamma-spectrometered directly using ahigh-resolution Ge-detector. The gamma-spectra were processed by the GENIE-2000code. The ITEP-developed SIGMA code was used together with the PCNUDAT nucleardecay database to identify the gamma-lines and to determine the cross-sections.The 27-Al(p,x)Na-22 reaction was used to monitor the proton flux. The measuredyields are compared with calculation the LAHET (with ISABEL and Bertinioptions), CEM95, CEM2k, CASCADE, CASCADE/INPE, INUCL, and YIELDX codes.Estimates of the mean deviation factor are used to demonstrate the predictivepower of the codes. The results obtained may be of interest in studying theparameters of the Pb and W target modules of the hybrid Accelerator-DrivenSystem (ADS) facilities.