Radiations of Neutron-Deficient Barium and Cesium Nuclides

Journal Article · Wed Jul 01 00:00:00 EDT 1953 · Physical Review

DOI:https://doi.org/10.1103/physrev.91.194· OSTI ID:4413410

Fink, Richard W. ^[1]; Wiig, Edwin O. ^[1]

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1. Univ. of Rochester, NY (United States)

In the study of spallation reactions of cesium with high-energy protons, radiations of nuclides Ba¹²⁸ Ba¹²⁹ and Cs¹²⁸ were investigated. Previously it has been reported that 2.4±0.1-day Ba¹²⁸ generates a 3.2-minute cesium daughter, accompanied by emission of 3-Mev positrons from the equilibrium mixture. Existence of 2.0-hour Ba¹²⁹ with emission of positrons of unknown energy has also been reported, with assignment by mass spectrograph. Recently Lindner and Osborne have reported that Ba¹²⁸ decays purely by orbital-electron capture leading to a 3.8-minute Cs¹²⁸ daughter which decays with emission of 3-Mev positrons. Wapstra et al. have studied Cs¹²⁸ and report gamma-rays of 455±5 kev in about 20 percent of the decays, and 980±30 kev present to about 2 percent of the intensity of the 455-kev line.

• Research Organization: Univ. of Rochester, NY (United States)
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• NSA Number: NSA-07-004494
• OSTI ID: 4413410
• Report Number(s): NYO--3839
• Journal Information: Physical Review, Journal Name: Physical Review Journal Issue: 1 Vol. 91; ISSN 0031-899X
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
BARIUM ISOTOPES
BETA DECAY
CAPTURE
CESIUM 128
CESIUM CHLORIDES
COINCIDENCE METHODS
DECAY
ELECTRONS
ENERGY LEVELS
ENERGY RANGE
GAMMA RADIATION
HALF-LIFE
INTERNAL CONVERSION
MEASURED VALUES
POSITRONS
PROTON BEAMS
Physics
X RADIATION