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Measurements Of The Mössbauer Fraction In Chromium, B. Frederick Brace Jr.
Measurements Of The Mössbauer Fraction In Chromium, B. Frederick Brace Jr.
Dissertations and Theses
Precision measurements of the Mossbauer fraction of Fe57 in chromium were made using the black absorber technique over a range of temperatures from 78K to 792K. Because of uncertainty in corrections at high temperatures, only the data collected from 78K to 600K was used in analyzing the results.
The f values were analyzed in terms of a Debye approximmation. This analysis of the data yielded a theoretical fit which was based on two adjustable parameters (a Debye temperature of 438K and an anharmonicity parameter of 2 x 10-4K-1).
The f measurements were also analyzed using a …