Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Angular correlation measurements of Hf180 and determination of the gR factor of the 2+ and the 4+ rotation levels (in German)

Journal Article · · European Physical Journal. A
DOI:https://doi.org/10.1007/BF01378086· OSTI ID:4797817
; ; ; ; ;
The following angular correlations in the decay of Hf/sup 180m/ were measured: for the 215 kev-93 kev gamma - gamma cascade, W( THETA ) = 1 + (0.093 plus or minus 0.007)P/sub 2/ + (0.014 plus or minus 0.009)P/sub 4/; for the 332 kev-215 kev gamma - gamma cascade, W( THETA ) = 1 + (0.090 plus or minus 0.010)P/sub 2/ + (0.006 plus or minus 0.010)P/sub 4/; and for the 501 kev332 kev gamma - gamma cascade, W( THETA ) = 1 + (0.004 plus or minus 0.007)P/sub 2/(0.002 plus or minus 0.012)P/sub 4/. Liquid sources of HfF/sub 4/ dissolved in concentrated HF were used for these experiments. The angular correlation of the 215 kev-93 kev cascade was found to be slightly attenuated by internal fields. A measurement of the differential angular correlation for different delays gave lambda /sub 2/ = (0.073 plus or minus 0.036) x 100 sec/sup -1/ assuming A/sub 2/ (t) = A/sub 2/(0) x e/sup - lambda .sub 2/t/. The above correlation functions agree with the interpretation of the low lying states of Hf/sup 180/ as a (0/sup +/, 2/sup +/, 4/sup +/, 6/sup +/) rotaional band. The 501 kev-332 kev angular correlation shows that the multipolarity of the 501 kev gamma transition is a mixture of (3.5 plus or minus 0.5)% M2 and (96.5 plus or minus 0.5)% E3. The rotation of angular correlations in a strong external magnetic field was observed and the gyromagnetic ratios of the 2/sup +/ and the 4/sup +/ rotational states were determined as g/sub R/(2/sup +/ level) = +0.371 plus or minus 0.032 and g/ sub R/(4/sup +/ level) = +0.5 plus or minus 0.1.
Research Organization:
Physikalische Staatsinstitut, Hamburg
Sponsoring Organization:
USDOE
NSA Number:
NSA-16-012528
OSTI ID:
4797817
Journal Information:
European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 1 Vol. 165; ISSN 1434-6001
Publisher:
Springer
Country of Publication:
Country unknown/Code not available
Language:
German

Similar Records

GAMMA-GAMMA ANGULAR CORRELATIONS IN Re$sup 18$$sup 7$
Journal Article · Thu Aug 01 00:00:00 EDT 1963 · Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B · OSTI ID:4638442
The gyromagnetic ratio of the 2+ rotational level of Hf178 and further investigations on the decay of W178
Journal Article · Wed Jan 31 23:00:00 EST 1962 · European Physical Journal. A · OSTI ID:4799200
ANGULAR CORRELATIONS OF GAMMA RAYS IN CASCADE FROM LEVELS IN Lu$sup 175$ AND Hf$sup 17$$sup 7$
Journal Article · Fri Feb 28 23:00:00 EST 1958 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D · OSTI ID:4325563

Related Subjects

ANGULAR DISTRIBUTION
CASCADES
CORRELATION FUNCTION
ENERGY LEVELS
GAMMA RADIATION
GYROMAGNETIC RATIO
HAFNIUM 180
HAFNIUM FLUORIDES
ISOMERS
MAGNETIC FIELDS
MAGNETIC MOMENTS
MEASURED VALUES
PHYSICS
ROTATION
SPECTRA
SPIN
TRANSIENTS