Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 52 / Number 4
Takeo Nishitani, Satoshi Sato, Kentaro Ochiai, Chuzo Kutsukake, Shigeru Tanaka, Yuichi Abe, Chikara Konno
Fusion Science and Technology
Volume 52 / Number 4 / November 2007 / Pages 791-795
Format:electronic copy (download)
Blanket neutronics experiments were conducted for the development of the water-cooled pebble bed type ITER Test Blanket Module (TBM) using the Fusion Neutronics Source (FNS). Slab mockup assemblies based on the water-cooled pebble bed ITER TBM including water panels and/or a breeder pebble layer were irradiated by 14 MeV neutrons. After the irradiation, the amount of tritium produced in the diagnostic Li2CO3 pellets or breeder pebbles is measured by liquid scintillation counting method. The C/E ratios for the tritium production rate in those experiments are within 1 ± 0.05. A plan of the neutronics test on ITER-TBM and the neutronic diagnostics in the module are discussed. Micro fission chambers and compact activation foil transfer systems to be embedded in TBM are proposed for the neutron flux and neutron spectrum measurements, respectively.
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