NEW ISOMERS OF ASTATINE-212

Journal Article · Sat Jun 01 04:00:00 EDT 1963 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.130.2042· OSTI ID:4713261

Jones, W B

The Bi/sup 209/( alpha ,n)At/sup 212/ reaction was investigated in the energy range of 17 to 25 Mev. Astatine-122 was observed to decay by alpha- particle emission. An alpha group of 7.60 and 7.66 Mev having a half life of 0.305 sec and another group of 7.82 and 7.88 Mev having a half life of 0.120 sec were observed. Relative excitation functions were obtained for both isomers. An energy-level diagram for the alpha decay of astatine-212 is proposed. (auth)

• Research Organization: Univ. of California, Berkeley
• NSA Number: NSA-17-022640
• OSTI ID: 4713261
• Report Number(s): UCRL-10645; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 130; ISSN PHRVA
• Country of Publication: United States
• Language: English

Related Subjects

ALPHA DECAY
ALPHA PARTICLES
ASTATINE 212
BISMUTH 209
CROSS SECTIONS
ENERGY LEVELS
ENERGY RANGE
EXCITATION
EXCITATION FUNCTION
HALF- LIFE
ISOMERS
NEUTRONS
NUCLEAR REACTIONS
PHYSICS