Nearly Complete Isobar Suppression by Photodetachment

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3291104· OSTI ID:979336

Andersson, P. ^[1]; Lindahl, A. O. ^[1]; Hanstorp, D. ^[1]; Havener, Charles C ^[2]; Liu, Yun ^[2]; Liu, Yuan ^[2]

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1. University of Gothenburg, Sweden
2. ORNL

The efficiency of selective suppression of negative ions by photodetachment in a gas-filled radio frequency quadrupole ion cooler was investigated with a new detection method. A neodymium doped yttrium aluminum garnet laser beam at 1064 nm was used to remove Co ions in the radio frequency quadrupole cooler and the remaining ions were then probed by photodetachment and neutral particle detection. More than 99.99% suppression of the Co ions was observed. Under identical conditions, only 20% of a Ni beam was suppressed. The results demonstrate that this isobar suppression technique can lead to nearly complete elimination of certain isobaric contaminants in negative ion beams, opening up new experimental possibilities in nuclear and atomic research and accelerator mass spectrometry.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 979336
• Journal Information: Journal of Applied Physics, Vol. 107, Issue 2; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
ALUMINIUM
ANIONS
DETECTION
EFFICIENCY
GARNETS
HEAT EXCHANGERS
LASERS
MASS SPECTROSCOPY
NEODYMIUM
NEUTRAL PARTICLES
OPENINGS
QUADRUPOLE LINACS
YTTRIUM