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Shielding blocks for Hall D



Hi,

Talked with Doug Tilles about shielding blocks for Hall D.

He has about 800 tons of roughly 1' x 2' x 2' 2480 lb green blocks (almost solid
Fe, 442 lbs/ft**3), a small number of roughly 4' x 4' x 4' blocks, a lot of
steel plate, and 80 tons of Pb sheet he'd love to give away.

We can get more green blocks, although he doesn't know if they're still free.

They're just inside the Accel gate if we want to take a look.

Sounds like we don't have to worry about finding shielding materials!


				Sincerely,
					Elliott
 

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