Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

CALCULATION OF NEUTRON SPECTRA FROM SLOWING DOWN MODELS. Paper 21 of PAPERS FROM SEVENTH SEMIANNUAL SHIELDING INFORMATION MEETING, OCTOBER 14-15, 1959

Technical Report ·
OSTI ID:4096448
A slowing down model is a simple representation of the angle-integrated Boltzmann equation whereby energy loss in collisions is taken into account in some kind of approximation, which may be made quite good. Probably the greatest advantage in using a slowing down model lies in its replacement by a simple first- order differential equation in energy of the original integral equation for which there are no known mathematical methods of obtaining a solution in closed form. From this differential equation, explicit solutions for flux spectra can be calculated. Several slowing down models are exhibited and an idea of their accuracy is given. (auth)
Research Organization:
General Electric Co. Aircraft Nuclear Propulsion Dept., Evendale, Ohio
NSA Number:
NSA-15-010340
OSTI ID:
4096448
Report Number(s):
TID-6302(Paper 21)
Country of Publication:
Country unknown/Code not available
Language:
English