Thermal neutron diffusion parameters of O, 20, 50, 80 and 100 percent D₂O in mixtures of light and heavy water were measured by the pulsed neutron technique at room temperature (21°C), near the freezing point of the mixture in the liquid state, and at -20°C in the solid state (ice). A 250-kv pulsed Cockcroft-Walton accelerator, using neutrons from the ₁H²(d,n)₂He³ reaction, was used to generate fast neutrons bursts.
The values of the infinite medium decay constant, λ₀, were computed by a least squares fit of λ versus B² data to the expression:
λ = λ + D₀B² - CB⁴
The parameters D₀, C, and λ𝗍ᵣ were determined from the above expression after rearranging:
λ-λ₀ = D B² - CB⁴
The resulting values of D₀, C, λ, and λ𝗍ᵣ at several temperatures are tabulated. / Ph. D.
| Identifer | oai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/87342 |
| Date | January 1965 |
| Creators | Salaita, George Nicola |
| Contributors | Physics, Physics |
| Publisher | Virginia Polytechnic Institute |
| Source Sets | Virginia Tech Theses and Dissertation |
| Language | en_US |
| Detected Language | English |
| Type | Dissertation, Text |
| Format | 53 leaves, application/pdf, application/pdf |
| Rights | In Copyright, http://rightsstatements.org/vocab/InC/1.0/ |
| Relation | OCLC# 20329960 |
Page generated in 0.0019 seconds