Benchmark Test of JENDL-4.0 Based on Integral Experiments at JAEA/FNS

Abstract

The major revised version of Japanese Evaluated Nuclear Data Library (JENDL), JENDL-4.0, was released in May, 2010. As the benchmark test of JENDL-4.0 in the shielding and fusion neutronics fields, we analyzed many integral benchmark experiments (in-situ and Time-of-Flight (TOF) experiments) with DT neutrons at JAEA/FNS with the MCNP code and JENDL-4.0. The experiments with assemblies including beryllium, carbon, silicon, vanadium, copper, tungsten and lead, nuclear data of which were revised in JENDL-4.0, were selected for this benchmark test. As a result, it is demonstrated that JENDL-4.0 improves some problems pointed out in JENDL-3.3. JENDL-4.0 is comparable to ENDF/B-VII.0 and JEFF-3.1.

Simultaneous measurements for fast neutron flux and tritium production rate using pulse shape discrimination and single crystal CVD diamond detector

“…Our model included the various components of the experiment, such as the neutron source, moderator, the SDD, and the irradiation room. We ensured that the angular distributions of neutron energy and flux at the target matched those previously validated at the Fusion Neutron Source (FNS) of the Japan Atomic Energy Agency [37][38][39][40], because the OKTAVIAN employed the same target system as that in FNS. Subsequently, we compared the neutron energy spectrum at the position of the SDD to the deduced neutron energy spectrum.…”

Benchmark test of JENDL-4.0 with TOF experiments at Osaka Univ./OKTAVIAN

“…So far we benchmarked it through the benchmark experiments carried out at the Fusion Neutronics Source (FNS) facility in Japan Atomic Energy Agency (JAEA) *Corresponding author. Email: takakura.kosuke@jaea.go.jp [2,3] on beryllium, carbon, silicon, vanadium, iron, copper, tungsten and lead.…”

“…From 1984 to 1988, sphere pile integral benchmark experiments were carried out with DT neutrons of OKTAVIAN in Osaka University [4] on LiF, CF 2 …”