Accession Number : AD0427205

Title :   ON THE QUESTION OF ISOTOPIC PHASE SEPARATION IN SOLID H2 - D2 MIXTURES,

Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s) : Gaines,J. R. ; de Castro,E. M. ; Daunt,J. G.

Report Date : DEC 1963

Pagination or Media Count : 5

Abstract : The purpose of the research was to investigate possible isotopic phase separation in solid H2 - D2 mixtures by observing line widths and line shapes of nuclear resonance. A calculation of the rigid lattice second moment for protons in a homogeneous solid H2 - D2 mixture was made. Observations of the N.M.R. line widths and line shapes of solid mixtures of n-H2 and n-D2 at 4.2 K showed the line shapes to be Gaussian and yielded widths which are illustrated. The calculated shape of the derivative of a resonance line obtained from a phase separation of a sample of original concentration X sub H2 = 0.20 into regions with concentration X sub H2 = 0.95 and X sub H2 = 0.05 is presented. The composite nature of the line is evident. (Author)

Descriptors :   (*HYDROGEN, NUCLEAR MAGNETIC RESONANCE), (*DEUTERIUM, NUCLEAR MAGNETIC RESONANCE), (*PHASE STUDIES, ISOTOPES), (*NUCLEAR MAGNETIC RESONANCE, HYDROGEN), MIXTURES, PROTONS, RESONANCE, SEPARATION, MATHEMATICAL ANALYSIS

Distribution Statement : APPROVED FOR PUBLIC RELEASE