BETA-GAMMA DIRECTIONAL CORRELATION IN Eu$sup 15$$sup 4$

Journal Article · Sat Jul 15 04:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys.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.123.615· OSTI ID:4843933

Sastry, K S.R.; Petry, R F; Wilkinson, R G

The energy dependence of the beta-gamma angular correlation between the outer beta-ray group of Eu/sup 154/, W/sub 0/ = 1.86 Mev, and the 123-kev gamma ray of the daughter Gd/sup 154/ has been measured with a shaped magnetic field betagamma coincidence spectrometer. A negative correlation coefficient, accurate to about 5%, is obtained which ranges from -0.10 to -0.17 in the energy region 0.80 to 1.60 Mev. It is shown that the modified B/sub ij/ approximation must be relaxed to explain the data. The nuclear parameters (Kotani's notation) which result are: x = -0.24 plus or minus 0.05, u =-0.05 plus or minus 0.03, Y = +0.76 plus or minus 0.08. These values are compared with those which have been reported for Eu/sup 152/: x = u = 0, Y = 0.69 plus or minus 0.06. (auth)

• Research Organization: Indiana Univ., Bloomington
• NSA Number: NSA-15-026949
• OSTI ID: 4843933
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 123; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
BETA PARTICLES
BETA SPECTROMETERS
COINCIDENCE METHODS
ENERGY RANGE
EUROPIUM 154
GADOLINIUM 154
GAMMA RADIATION
KEV RANGE
MAGNETIC FIELDS
MEASURED VALUES
NUCLEAR REACTIONS
PHYSICS