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Nuclear Reactor Digitization Project

Raymond L. Murray Reactor Project Notebook

Prepared for the North Carolina State University Science and Technology Electronic Text Center

The lineation of the manuscript has been maintained and all end-of-line hyphens have been preserved.

Keywords in the header are a local Science and Technology Electronic Text Center scheme to aid in establishing analytical groupings.

GRAPHITE:

The requirements on reflector and thermal column graphite were given to the

(in.

3/ft.3)block (lb.)

5503 = 100 lb.ft3)

The basic design calls for a 5' x 5' x 5' reflector and a 5' x 5' x 5' thermal
column (neglecting the core and the lead shielding.). The volume is thus only

250 ft.

3, the weight 25,000 lb. or 12.5 tons. The excess of 4.5 tons will take
care of

machining and breakage. An estimate of needs can be made to include only

Assuming that the units of construction are 4" x 4" x 41" (cut from the 44"
pieces), and 4"x 4" x 19" (two cut from the 41" pieces), that each 5' x 5' x 5'

cube is formed by 15 courses, each consisting of 15 "longs" and 15 "shorts", then

225 of the 40" and 450 of the 44" are needed. The specifications to

LEAD:

It is assumed that bricks 2" x 4" x 8" are used. Each has a volume of 1/27 ft.3,
with a specific gravity of 11.3. The specific weight is 705 lb./ft.

3. Each brick
weighs 1/27 x 705 = 26.1 lb. The agreed locations and dimensions of lead are:

The total thickness is thus 18". With an area of 5' x 5', this gives 37.5 ft.3,
or 705 x 37.5 = 26,400 lb.; or 13.2 tons. Considering the saving at corners and