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November 9–12, 2025
Washington, DC|Washington Hilton
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After decades, Hanford’s WTP begins vitrifying tank waste
The Department of Energy’s Office of Environmental Management and its contractor Bechtel announced on October 15 the start of nuclear vitrification operations at the Waste Treatment and Immobilization Plant (WTP), also known as the Vit Plant, at the Hanford Site in Washington state.
C. W. J. McCallien
Nuclear Science and Engineering | Volume 50 | Number 3 | March 1973 | Pages 290-293
Technical Note | doi.org/10.13182/NSE73-A28982
Articles are hosted by Taylor and Francis Online.
Exact and first-order perturbation formulas that give changes in the eigenvalue of the discrete multigroup neutron diffusion equation are obtained. Various errors arising during the evaluation of these formulas are discussed. It is shown that for exact theory to give greater precision than first-order theory the fluxes must be sufficiently well converged to display the changes in them due to the perturbation. The reader is encouraged to assess the likely outcome of errors in his own calculations.