Method and apparatus for efficient photodetachment and purification of negative ion beams

Patent · Tue Feb 26 00:00:00 EST 2008

OSTI ID:983889

Beene, James R ^[1]; Liu, Yuan ^[2]; Havener, Charles C ^[2]

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1. Oak Ridge, TN
2. Knoxville, TN

Methods and apparatus are described for efficient photodetachment and purification of negative ion beams. A method of purifying an ion beam includes: inputting the ion beam into a gas-filled multipole ion guide, the ion beam including a plurality of ions; increasing a laser-ion interaction time by collisional cooling the plurality of ions using the gas-filled multipole ion guide, the plurality of ions including at least one contaminant; and suppressing the at least one contaminant by selectively removing the at least one contaminant from the ion beam by electron photodetaching at least a portion of the at least one contaminant using a laser beam.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• Assignee: UT-Battelle LLC (Oak Ridge, TN)
• Patent Number(s): 7,335,878
• Application Number: 11/251,710
• OSTI ID: 983889
• Country of Publication: United States
• Language: English

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