A DERIVATION OF THE TIME-DEPENDENT ADJOINT EQUATIONS FOR NEUTRON IMPORTANCE IN THE TRANSPORT, CONTINUOUS SLOWING-DOWN AND DIFFUSION MODELS

Journal Article · Sat Oct 01 00:00:00 EDT 1960 · J. Nuclear Energy, Pt. A. Reactor Sci.

DOI:https://doi.org/10.1016/S0368-3265(60)80002-3· OSTI ID:4117707

Lewins, J

A generalization of the conventional importance concept is to consider the contribution of any one neutron to some final operationally determinable characteristic of a nuclear reactor. Consistency requires that one neutron is as important as its progeny. From these ideas, the adjoint equations and boundary conditions are derived for the Boltzmann transport model, for simple and multigroup diffusion theory and for the continuous slowing-down model. This more general concept for the time-dependent importance includes the conventional expressions of iterated fission probability, etc. as special cases. (auth)

• Research Organization: Massachusetts Inst. of Tech., Cambridge
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-007040
• OSTI ID: 4117707
• Journal Information: J. Nuclear Energy, Pt. A. Reactor Sci., Vol. Vol: 13; Other Information: Orig. Receipt Date: 31-DEC-61
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

REACTOR TECHNOLOGY