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U.S. Department of Energy
Office of Scientific and Technical Information

THE DISCRETE ENERGY REPRESENTATION OF THE THERMALIZATION PROBLEM

Technical Report ·
OSTI ID:4748882
The validity of a discrete representation of the energy variable in view of the existence of a continuum of eigenvalues has been examined. For an infinite medium with 1/v absorption and a spatially constant source, time dependent and steady state spectra were generated both directly from the Boltzmann equation and from an eigenfunction expansion, using the Mass-1 and the Nelkin kernel. The steady state solution of the Boltzmann equation with the Mass- 1 kernel yielded the Wigner-Wilkins spectra, and eigenfunctions found for the time dependent equation form an orthonormal set that represents all functions over the discrete set of energies considered. (D.C.W.)
Research Organization:
Rensselaer Polytechnic Inst., Troy, N.Y.
NSA Number:
NSA-17-015221
OSTI ID:
4748882
Report Number(s):
TID-18008
Country of Publication:
United States
Language:
English