SPECTRA OF NEUTRON-DEFICIENT Hf ISOTOPES

Journal Article · Wed Jul 01 04:00:00 EDT 1959 · Izvest. Akad. Nauk. S.S.S.R., Ser. Fiz.

OSTI ID:4225637

Baranovskii, V I; Kalyamin, A V

Scintillation methods were used in studies of the Hf fraction isolatcd from Ta irradiated by 680 Mev protons. Two lines of 125 and approximately 300 kev with the intensity ratio 100:60 were found for Hf/sup 173/ (with T/sub 1/2/ = 23.5 hours). For Hf/sup 171/ (T/sub 1/2 =13 hours), a group of lines at 400 to 700 kev was uncovered in addition to the known line of 175 kev. The Hf/sup 171/ spectrum was divided into separate components and their relative intensities tabulated. The half life of the 175 kev line was approximately 16 hours, which indicates the presence of Hf/sup 173/ (162.3 kev) and Lu/sup 171/ (180 kev; with Lu/sup 171/ accumulated as the result of the decay of Hf/sup 171). (R.V.J.)

• Research Organization: Khlopin Radium Inst., Academy of Sciences, USSR
• NSA Number: NSA-14-003983
• OSTI ID: 4225637
• Journal Information: Izvest. Akad. Nauk. S.S.S.R., Ser. Fiz., Journal Name: Izvest. Akad. Nauk. S.S.S.R., Ser. Fiz. Vol. Vol: 23
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ENERGY RANGE-- GAMMA RADIATION-- HAFNIUM ISOTOPES-- IRRADIATION-- MEASURED VALUES-- PROTON BEAMS-- SEPARATION PROCESSES-- SPECTRA-- TANTALUM
GAMMA RADIATION-- HAFNIUM ISOTOPES-- HAFNIUM 171-- HAFNIUM 173-- IMPURITIES-- LUTETIUM 171-- MEASURED VALUES-- SPECTRA
GAMMA RADIATION-- HAFNIUM ISOTOPES-- HAFNIUM 171-- HALF-LIFE-- MEASURED VALUES-- SPECTRA
GAMMA RADIATION-- HAFNIUM ISOTOPES-- HAFNIUM 173-- HALF-LIFE-- MEASURED VALUES-- SPECTRA
GAMMA RADIATION-- HAFNIUM ISOTOPES-- MEASURED VALUES-- SCINTILLATION COUNTERS-- SPECTRA
PHYSICS