@article{oai:repo.qst.go.jp:00077678,
 author = {Gwon, Hyoson and Tanigawa, Hisashi and Hattori, Kentaro and Iida, Hiromasa and Hirose, Takanori and Kawamura, Yoshinori and Gwon, Hyoson and Hisashi, Tanigawa and Kentaro, Hattori and Hiromasa, Iida and Takanori, Hirose and Yoshinori, Kawamura},
 issue = {B},
 journal = {Fusion Engineering and Design},
 month = {Nov},
 note = {Water cooled ceramic breeder (WCCB) blankets have been regarded as a primary concept in Japan. We in-vestigated the tritium breeding capability of a WCCB blanket with a cylindrical structure, an advantageous shapefor withstanding high coolant pressure, in this study. The breeding area in the blanket was modeled as ahomogeneous mixture or heterogeneous structures. Nuclear analyses with Monte Carlo method were conductedfor evaluating the tritium breeding ratio (TBR) of the blanket. The neutron balance of the blanket was analyzedto elucidate the mechanism related to the increase in TBR when an additional thin breeding layer (envelope) wasapplied to the blanket. The neutron multiplication in (n, 2n) reaction increased concomitantly with increase ofthe beryllium volume ratio. However, numerous neutrons were not used efficiently for tritium production, butwere captured by the container, which was made of the reduced activation ferritic martensitic steel, F82H.Capture by the container can be reduced by introducing an envelope. The effect of the envelope was considerablewhen modeling the internal structure such as U-shaped pipes in the breeding area. The envelope was also appliedto a blanket with different container designs. An increase in TBR was shown irrespective of blanket design. Theenvelope effect was remarkable when it was difficult to achieve the internal configuration, which was equivalentto the homogeneous mixture in the breeding area},
 pages = {1886--1890},
 title = {Tritium breeding capability of water cooled ceramic breeder blanket with different container designs},
 volume = {146},
 year = {2019}
}