Feasibility of Hands-On Maintenance of the Ion Sources in the NBI of MARS
Fusion Science and Technology / Volume 8 / Number 1P2B / July 1985 / Pages 1497-1502
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-A39978
Articles are hosted by Taylor and Francis Online.
The problem of the radiation in penetrations was solved in the MARS sloshing beam line by providing several bends through the penetration shield to efficiently attenuate the streaming radiation. The design of the shield within the NBI penetration and the off-axis arrangement of the ion sources along with the selection of low activation materials for the NBI help reduce the biological dose to an acceptable level at the back of the injector where hands-on maintenance is highly desirable.
