ELECTRON CONVERSION SPECTRA OF DYSPROSIUM FRACTION

Journal Article · Thu Sep 01 04:00:00 EDT 1960 · Izvest. Akad. Nauk S.S.S.R., Ser. Fiz.

OSTI ID:4070250

Abdurazakov, A A; Gromov, K Ya; Dzhelepov, B S; Umarov, G Ya

Electron conversion spectra of dysprosium isotopes in deep tantalum spallation (E/sub p/ = 600 Mev) were studied with a constant magnetic field beta spectrometer. The results of experimerts with dysprosium fraction spectra at 25 to 1000 kev conformed the published data on conversion electrons: Dy/sup 157/(T = 8.2 hr), Dy/sup 155/(T= 10 hr), Tb/sup 15/< s5>s(T = 5.6 hr), and Tb/sup 153/(T = 62 hr). A new level of 662.0 kev is suggested in Dy/sup 155/ decay; the K capture branch is confirmed for Dy/sup 15 / 3>s decay. The gamma transition magnitudes hv " 86.6, 82.3, 99.6, of 17.48, 218.9, 240.7, 274.4, 303.8, 389.8, and 415.7 kev were discovered. The presence of Dy/sup 152/ in the dysprosium fraction prcduced by tantalum bombardment by fast neutrons was established, and the new gamma transition line of 257.2 kev was found in Dy/sup 152/ decay. The gamma quanta energies hv = 411.3, 271.3, 432.5, 588.4, and 616.2 kev appearing in Tb/sup 152/ decay were confirmed and a new 186.9-kev gamma transition was found. (R.V.J.)

• Research Organization: Middle-Asia Polytechnic Inst.; Joint Inst. for Nuclear Research, Dubna, U.S.S.R.
• NSA Number: NSA-15-012120
• OSTI ID: 4070250
• Journal Information: Izvest. Akad. Nauk S.S.S.R., Ser. Fiz., Journal Name: Izvest. Akad. Nauk S.S.S.R., Ser. Fiz. Vol. Vol: 24
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

BETA DETECTION
BETA SPECTROMETERS
BRANCHING RATIO
CAPTURE
DECAY
DYSPROSIUM
DYSPROSIUM 152
DYSPROSIUM 155
DYSPROSIUM 157
ELECTRONS
ENERGY LEVELS
ENERGY RANGE
FAST NEUTRONS
FISSION
FISSION PRODUCTS
GAMMA RADIATION
HALF-LIFE
INTERNAL CONVERSION
MAGNETIC FIELDS
MEASURED VALUES
NUCLEAR REACTIONS
PHYSICS
PROTONS
SPECTRA
TANTALUM
TARGETS
TERBIUM 152
TERBIUM 153
TERBIUM 155