| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a piping structure for a penetration part in a shielding wall that is used for connecting pipes embedded into a radiation shielding wall inside and outside a radiation handling area, which retains the position attitude of individual pipes and subsidiary shields, can be easily constructed, and unfailingly prevents streaming. <P>SOLUTION: A through-hole 13 is provided as a pipe in a block 11 formed of radiation shielding materials, bended at least at two locations, and penetrated from a first surface to a second surface opposing to the first surface. Subsidiary shielding parts 37, 39 are the radiation shielding materials that are left on the opposite side of straight pipe parts 23, 31 across bending points 25, 29 of the through-hole. <P>COPYRIGHT: (C)2012,JPO&INPIT |
