JENDL-4.0 benchmark test with shielding experiments

Shielding Integral Test Working Group, JENDL Committee

The major revised version of Japanese Evaluated Nuclear Data Library (JENDL), JENDL-4.0, was released in May, 2010. Thus Shielding Integral Test Working Group in JENDL Committee has performed benchmark tests of JENDL-4.0 for the shielding and fusion neutronics fields in order to verify accuracy of JENDL-4.0. We adopted many benchmark experiments: 1) the in-situ and Time-of-Flight (TOF) experiments with DT neutrons at JAEA/FNS, 2) the TOF experiments with DT neutrons at Osaka Univ./OKTAVIAN, 3) the aluminum, iron, nickel and lead experiments with DT neutrons at IPPE, Russia, 4) the iron and stainless steel experiments at ORNL/TSF, US, 5) the ASPIS iron experiment at Winfrith, England, 6) the iron experiments with Cf neutron source at KfK, Germany and 7) the iron experiments with Cf neutron source at NIST, US. These experiments were analyzed by using the Monte Carlo code MCNP4 or MCNP5 and/or Sn codes ANISN, DOT3.5 and DORT with mainly JENDL-3.3 and JENDL-4.0. The calculated results demonstrated that JENDL-4.0 led to better agreements with the measured data due to revisions of JENDL-3.3 problems.