NUCLEAR ZEEMAN EFFECT IN Sn$sup 11$$sup 9$

Journal Article · Thu Sep 01 04:00:00 EDT 1960 · Zhur. Eksptl'. i Teoret. Fiz.

OSTI ID:4118804

Delyagin, N N; Shpinel, V S; Bryukhanov, V A; Zvenglinskii, B

The resonance absorption of 23.8 kev gamma quanta by Sn/sup 119/ was studied as a function of source intensity. The absorber was located in a constant external magnetic field, and Zeeman spallation appeared in the absorption line. The hyperfine absorption spectra permit the determination of the 23.8 kev magnetic moment of Sn/sup 118/ in the excited state. A tin foil (94% Sn/sup 118/), irradiated by thermal neutrons in a reactor, was used as gamma quantam source; an absorver (20 mg/cm 8nNb/sub 3/) was placed between magnetic poles forming a constant, uniform, 12150 gauss field. The measurements were carried out with and without a magnetic field. The results are plotted, and the distancs DELTA between the hyperfine structure components was found to be (1.2 plus or minus 0.2) x 10/sup -7/ ev, in good agreement with published data. For the 23.8 kev excited state, the nuclear magneton magnitude is mu = +(1.9 plus or minus 0.4). The result is considerably higher than that predicted by a single particle model, indicating that the 23.8 kev level in Sn/sup 119/ is not a monomial and confirming that the M1 transition at 23.8 kev is 1-forbidden. (R.V.J.)

• Research Organization: Moscow State Univ.
• NSA Number: NSA-15-003512
• OSTI ID: 4118804
• Journal Information: Zhur. Eksptl'. i Teoret. Fiz., Journal Name: Zhur. Eksptl'. i Teoret. Fiz. Vol. Vol: 39
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ENERGY LEVELS
FOILS
GAMMA SOURCES
HYPERFINE STRUCTURE
IRRADIATION
MAGNETIC FIELDS
MAGNETIC MOMENTS
MEASURED VALUES
PHOTONS
PHYSICS
RESEARCH REACTORS
RESONANCE
SPECTRA
THERMAL NEUTRONS
TIN
ZEEMAN EFFECT