Search for ground state proton emission from sup 65 As and sup 69 Br

Journal Article · Thu Nov 01 04:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.42.1922· OSTI ID:6098615

Robertson, J D; Reiff, J E; Lang, T F; Moltz, D M; Cerny, J ^[1]

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1. Department of Chemistry, Lawrence Berkeley Laboratory, Universityof California, Berkeley, CA (USA) Nuclear Science Division, Lawrence Berkeley Laboratory, University of California, Berkeley, CA (USA)

The ground state proton decays of {sup 65}As and {sup 69}Br have been searched for in {sup 28}Si and {sup 32}S bombardments of a natural calcium target. These studies employed a newly developed rapidly rotating recoil-catcher wheel and a low-energy particle-identification telescope. No proton groups that could be assigned to either of these nuclides were observed. The minimum detectable limits indicate that {sup 65}As and {sup 69}Br either decay predominantly by beta emission or have half-lives less than 100 {mu}s. The overall evidence strongly indicates that {sup 65}As predominantly beta decays.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6098615
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:5; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH METALS
ARSENIC 65
ARSENIC ISOTOPES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BROMINE 69
BROMINE ISOTOPES
CALCIUM
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
DECAY
ELEMENTS
HALF-LIFE
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
METALS
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
PROTON-EMISSION DECAY
RADIOISOTOPES
SILICON 28 REACTIONS
SULFUR 32 REACTIONS