Gamma spectrum of Se⁸¹

Journal Article · Sat Jan 31 23:00:00 EST 1959 · European Physical Journal. A

DOI:https://doi.org/10.1007/BF01375154· OSTI ID:4186419

Krause, I. Y.; Schmidt-Ott, W. -D.; Hoffmann, K. -W.; Flammersfeld, A.

The decay oi Se⁸¹ (18 min) produced by neutron bombardment of natural Se and 98% enriched Se⁸¹ has been studied with the aid of scintillation - spectrometers. Gamma-rays have been observed and could be identified as belonging to the decay of Se⁸¹, revealing three excited levels in Br⁸¹ at (282 plus or minus 3) kev, (565 plus or minus 6) kev and (820 plus or minus 10) kev. The branching ratios of the beta-components are 98.7% leadiing to the ground state and (0.06 plus or minus 0.03)%, (0.85 plus or minus 0.20)% and (0.40 plus or minus 0.10)% leading to the excited states, respectively. The 565 kev-level decays to the ground state directly or by a cascade-transition with nearly equal intensities, the 820 kev-level mainly by a direct transition.

• Research Organization: Universitat, Gottingen, Ger.
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-005890
• OSTI ID: 4186419
• Journal Information: European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 1 Vol. 157; ISSN 1434-6001
• Publisher: Springer
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY-- BRANCHING RATIO-- DECAY-- GAMMA RADIATION- - HALF-LIFE-- MEASURED VALUES-- SELENIUM 81-- SPECTRA
BROMINE 81-- ENERGY LEVELS-- EXCITATION-- GAMMA RADIATION-- MEASURED VALUES-- SELENIUM 81-- SPECTRA
ENRICHMENT-- GAMMA RADIATION-- IRRADIATION-- MEASURED VALUES-- NEUTRON BEAMS-- NUCLEAR REACTIONS-- PRODUCTION-- SELENIUM-- SELENIUM 80-- SELENIUM 81-- SPECTRA
GAMMA RADIATION-- GAMMA SPECTROMETERS-- MEASURED VALUES-- SCINTILLATION COUNTERS-- SELENIUM 81-- SPECTRA