BETA-GAMMA DIRECTIONAL CORRELATION IN Rb$sup 86$ AND Eu$sup 15$$sup 2$

Journal Article · Thu Dec 01 04:00:00 EST 1960 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.120.1762· OSTI ID:4112484

Fischbeck, H J; Wilkinson, R G

Measurements are reported on the energy dependence of the BETA - gamma angular correlation coefficient in the special first forbidden cases of Rb/sup 86/ and Eu/sup 152/. Energy selection of the BETA rays was accomplished with a magnetic BETA -ray spectrometer having good transmission. It is shown that Rb/ sup 86/ cannot be analyzed in terms of the so-called modified B/sub ij/. approximation. The Eu/sup 152/ decay, on the other hand, can be treated quite satisfactorily in this approximation. It was concluded in this case that a strong selection-rule effect is operative to suppress certain of the matrix elements relative to B/sub ij/. The nuclear parameter Y (Kotani's notation) was found to be 0.69 plus or minus 0.06. This agrees well with the value which results from the measured spectrum shape factor. (auth)

• Research Organization: Indiana Univ., Bloomington
• NSA Number: NSA-15-005708
• OSTI ID: 4112484
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 120; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
BETA DECAY
BETA PARTICLES
BETA SPECTROMETERS
ENERGY
EUROPIUM
GAMMA RADIATION
MAGNETISM
MEASURED VALUES
PHYSICS
RUBIDIUM
SPECTRA