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The design and construction of a laboratory facility for the measurement of reactor moderator parametersAnthony, Lee Saunders January 1958 (has links)
A Sigma Pile was constructed to serve as a laboratory facility at V.P.I.
Reproducible foil positions are possible with the positioning plates installed on the pile.
Withdrawal of the two outer blocks in each foil channel is facilitated by a coupling mechanism.
Five source positions permit operation with reduced harmonics.
The neutron distribution in the pile was proven to be symmetric by horizontal and vertical traverses.
By means of a diffusion length measurement, which gave an "L” of 54.5 ± 2 cm, and a Fermi Age measurement, which gave a "r” of 357 ± 5 cm², the parameters of the pile were shown to be in good agreement with published data on graphite. / Master of Science
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