Production of an Accelerated Oxygen-14 Beam

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BEARS is an ongoing project to provide a light-ion radioactive-beam capability at the 88-Inch Cyclotron at LBNL. Light radioactive isotopes are produced at a 10 MeV proton medical cyclotron, transported 350 m via a high-speed gas transport capillary, cryogenically separated, and injected into the 88-Inch Cyclotron's ion source. The first radioactive beam successfully accelerated was Carbon-11 and beams of intensity more than 108 ions/sec have been utilized for experiments. Development of Oxygen-14 as the second BEARS beam presented considerable technical challenges, both due to its short half-life of 71 seconds and the radiation chemistry of oxygen in the target. The ... continued below

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Powell, James; O'Neil, James P. & Cerny, Joseph May 3, 2002.

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Description

BEARS is an ongoing project to provide a light-ion radioactive-beam capability at the 88-Inch Cyclotron at LBNL. Light radioactive isotopes are produced at a 10 MeV proton medical cyclotron, transported 350 m via a high-speed gas transport capillary, cryogenically separated, and injected into the 88-Inch Cyclotron's ion source. The first radioactive beam successfully accelerated was Carbon-11 and beams of intensity more than 108 ions/sec have been utilized for experiments. Development of Oxygen-14 as the second BEARS beam presented considerable technical challenges, both due to its short half-life of 71 seconds and the radiation chemistry of oxygen in the target. The usual techniques developed for medical uses of Oxygen-15 involve the addition of significant amounts of carrier oxygen, something that would overload the ion source. As a solution, Oxygen-14 is produced as water in a carrier-free form, and is chemically converted in two steps to carbon dioxide, a form readily usable by the BEARS. This system has been built and is operational, and initial tests of accelerating an Oxygen-14 beam have been performed.

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Notes

INIS; OSTI as DE00796105

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  • 14th EMIS (ElectroMagnetic Isotope Separators and Techniques related to their applications) Conference, Victoria, British Columbia (CA), 05/06/2002--05/10/2002

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  • Report No.: LBNL--50223
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 796105
  • Archival Resource Key: ark:/67531/metadc735374

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • May 3, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • Sept. 1, 2016, 7 p.m.

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Powell, James; O'Neil, James P. & Cerny, Joseph. Production of an Accelerated Oxygen-14 Beam, article, May 3, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc735374/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.