Small-Order Shape Factors inIn114,P32, and | Zendy

R. T. Nichols | Zendy; R. E. McAdams | Zendy; E. N. Jensen | Zendy

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Small-Order Shape Factors inIn114,P32, and

Author(s) -

R. T. Nichols,

R. E. McAdams,

E. N. Jensen

Publication year - 1961

Publication title -

physical review

Language(s) - English

Resource type - Journals

eISSN - 1536-6065

pISSN - 0031-899X

DOI - 10.1103/physrev.122.172

Subject(s) - physics , order (exchange) , energy (signal processing) , spectral line , combinatorics , kinetic energy , similarity (geometry) , crystallography , image (mathematics) , mathematics , quantum mechanics , artificial intelligence , computer science , chemistry , finance , economics

The beta spectra of In/sup 114/, P/sup 32/, and Y/sup 90/ were stud ied closely in an intermediate-image beta-ray spectrometer and compared to theoretical predictions in terms of a linear shape factor of the form (1 + aW). The values obtained for a were s for P/sup 32/, and (-0.0047 plus or minus 0.0008)/mc/sup 2/ for Y/sup 90/, all for electron kinetic energies from about 200 kev up to near the maximum beta energies. Tests were made to give indications for spectrometer fidelity. Because of the linearity of the shape-factor plots and the similarity in energy range, the comparative results from In/sup 114/, P/ sup 32/, and Y/sup 90/ are tak en as a definite indication that for at least two of these activities the shape factors have nonzero slopes, irrespective of questions of instrumental fidelity. (auth

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