Research on Reactor Waste Disposal: (Information Report) (open access)

Research on Reactor Waste Disposal: (Information Report)

Report discussing research on the disposal of radioactive waste, specifically second-cycle waste and first-cycle neutralized waste. "In the absence of established environmental tolerances, the investigation reported herein have been directed for the most part in developing general methods of removing radioactivity from certain waste solutions to as low a value as practical."
Date: December 15, 1950
Creator: Lowe, C. S.; McEwen, M.; Mead, F. C., Jr. & Orban, Edward
System: The UNT Digital Library
Neutron Energy Distributions Inside the Fast Reactor (open access)

Neutron Energy Distributions Inside the Fast Reactor

This technical report presents results of nuclear plate work carried out to determine the neutron energy distribution inside the Los Alamos fast reactor. Most of the distributions which were investigated are valid over the energy region from 0.4 to 6 Mev. The results show that at the center of the reactor pot about 65% of the neutrons are located below 1 Mev in a rather narrow energy region which has a maximum in the neighborhood of 0.5 to 0.6 Mev. Above 2 Mev the energy distribution is similar to that of a plutonium fission neutron spectrum, i.e. the spectrum decreases exponentially, diminishing by a factor of 10 in intensity over an energy range of about 4 Mev. The leading geometry of the reactor pot does not seem to appreciably affect the spectrum at the center of the pot. However, spectra determined outside the pot can be significantly altered by the particular viewing geometry employed to examine the neutrons coming from the center of the reactor.
Date: December 15, 1950
Creator: Nereson, Norris G., 1918-2007
System: The UNT Digital Library