UITF Meeting - November 20, 2018
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It's pretty clear we need additional shielding at the north wall of Cave2 to address cracks, and the absence of 2' of concrete for the horizontal tee-shaped blocks. And there is less concrete on the building 58 outer wall than we originally thought, which means the dose for someone in the annex 2nd floor office would be higher than we originally imagined. There are four options for additional shielding that we've been discussing: 1) purchase a wall of precast concrete, 2) use 14 available green steel blocks, 3) use the discarded laser hut concrete, 4) build a platform and then use available tee-shapped wall blocks. Images of three options shown below:
