| 摘要 |
A compact design of a shielded housing for transport and insertion of radioactive sources into wells for use in measuring properties of materials in vessels and the like is disclosed in this invention. The apparatus features a perforated belt which is wound on a drum. The sources are temporarily supported within the shielded housing and can be moved into place and mounted to the belt at the desired locations. Safety features are provided to avoid dropping the sources into the well and to temporarily support the belt so that the transport housing can be removed. The invention also provides for adjustment of the mounting height of the source or sources mounted to the belt.
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