Nuclear Analysis for the INTOR Array of Loops ICRF Launcher Module Design
Fusion Science and Technology / Volume 8 / Number 1P2B / July 1985 / Pages 1431-1436
Blanket Neutronic / Proceedings of the Sixth Topical Meeting on the Technology of Fusion Energy (San Francisco, California, March 3-7, 1985) / dx.doi.org/10.13182/FST85-A39967
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Nuclear analysis for the array of loops ICRF launcher module design of INTOR is presented. The nuclear radiation environment in the different module components is determined. The fast neutron fluence in the BeO radome is 1022 n/cm2 after one full power year leading to significant microcracking. Activation calculations for SF6 imply a total activity of 5 × 104 Ci at shutdown. Nuclear heating results in a large , breakdown rate in SF6. A 1.6 m thick nuclear shield is needed to allow for hands-on maintenance one day after shutdown behind the launcher module. The results imply that significant design changes are required for the array of loops ICRF launcher module to stand the severe INTOR nuclear environment.
