Characterization of the volume for high dose irradiations with IFMIF

Numerical examination of temperature control in helium-cooled high flux test module of IFMIF

“…As neutrons which are produced in the stripping reaction with a broad energy maximum peaked at 14-16 MeV, are mainly collided in the forward direction, the test modules housing the test pieces (TPs) to be irradiated are positioned immediately adjacent to the lithium target. More details of the technical concept for the IFMIF are presented in related papers [1][2][3][4][5]. The IFMIF test module and TP testing areas must be capable of accommodating the wide range of environments associated with fusion reactor materials, discussed precisely in Refs.…”

“…1 shows the new design of test module that we have proposed. The new design has some improved features as the followings: in IFMIF CDA design [3], TPs to be irradiated are located in irradiation capsules which are placed in vertical rigs, and the coolant flows outside the rigs. There exist two gas gaps between TPs and the cooling surface, i.e., one between TPs and capsules, another between capsules and rigs.…”