New heavy proton radioactivities {sup 165,166,167}Ir, {sup 171}Au, and {sup 185}Bi

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Bulletin of the American Physical Society

OSTI ID:255591

Davids, C N; Back, B B; Blumenthal, D J; Henderson, D J ^[1]

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1. and others

Proton radioactivities have been produced via the {sup 78}Kr +{sup 92}Mo, {sup 78}Kr + {sup 96}Ru, and {sup 92}Mo +{sup 95}Mo reactions at ATLAS. Reaction products at 0{degrees} were identified by M/q using the Fragment Mass Analyzer (FMA), and implanted into a double-sided silicon strip detector (DSSD) placed behind the FMA focal plane. Using time and position correlations the following new proton radioactivities were identified: {sup 165}Ir (374 {sup +83}{sub -64} {mu}s), {sup 166}Ir (8.8 {sup +2.6}{sub -1.9} ms and 14 {sup +6}{sub -4}ms), {sup 167}Ir (33.7{sup + 2.2}{sub -2.0} ms and 43{sup +11}{sub -8}ms), {sup 171}Au (1.7 {plus_minus} 0.5 ms), and {sup 185}Bi (43{sup +15}{sub -11}{mu}s). In each case the proton emitting isotope was identified by correlations with alpha particles from the daughter nuclides. Proton energies, decay schemes, and the spectroscopic information obtained will be discussed.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 255591
• Report Number(s): CONF-9510116--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 10 Vol. 40; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BISMUTH
HEAVY ION REACTIONS
IRIDIUM ISOTOPES
PROTON DECAY RADIOISOTOPES
PROTON-EMISSION DECAY
SILVER