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3D-printed tool at SRS makes quicker work of tank waste sampling
A 3D-printed tool has been developed at the Department of Energy’s Savannah River Site in South Carolina that can eliminate months from the job of radioactive tank waste sampling.
W. Maurice Pritchard, Tino Ahrens
Nuclear Science and Engineering | Volume 22 | Number 2 | June 1965 | Pages 248-252
Technical Paper | doi.org/10.13182/NSE65-A20243
Articles are hosted by Taylor and Francis Online.
Expressions have been derived for computing the effects of anisotropic neutron scattering in the center-of-mass system on the average cosine and the average cosine squared of the scattering angle in the laboratory system, the average logarithmic energy decrement per collision, the average square of the logarithmic energy decrement per collision if the angular distribution of the neutron scattering cross section in the center-of-mass system in known. In a Legendre polynomial representation, the effect of scattering anisotropy is to require additive correction terms to the usual isotropic scattering approximations for these parameters. The magnitudes of the correction terms depend on the mass of the scattering atom and the degree of anisotropy exhibited by the scattering cross section in the center-of-mass system.