A new technique for the production of17F beams

R. F. Welton; R. L. Auble; J. R. Beene; J. C. Blackmon; J. Kormicki; P. E. Mueller; D. W. Stracener; C. L. Williams

doi:10.1016/S0168-583X(99)00515-7

A new technique for the production of¹⁷F beams

R. F. Welton, R. L. Auble, J. R. Beene, J. C. Blackmon, J. Kormicki, P. E. Mueller, D. W. Stracener, C. L. Williams

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We have demonstrated that radioactive beams of Al¹⁷F⁺can be produced with intensities as high as 3 × 10⁸ ions/s using the conventional Isotope Separation On-Line (ISOL) technique employing fibrous HfO₂ target material and an external source of Al vapor. Commercially available HfO₂ cloth composed of Φ = 4-6 μm fibers packed to ∼12% of the bulk density of HfO₂2, was irradiated with ∼2 μA of 44 MeV deuterons from the Oak Ridge Isochronous Cyclotron (ORIC). The target material (1.6 g/cm²) was contained in a high-temperature reservoir which was coupled through a heated transfer line, to a conventional plasma ion source where the radioactive ion beam was extracted. During irradiation, a flux of elemental Al vapor was directed through the fibrous material forming a transportable molecule which was then extracted from the source as Al¹⁷F⁺. A detailed description of this technique is given and the results of this initial experiment are discussed. The target system was used to inject ¹⁷F into the tandem electrostatic accelerator at the Holifield Radioactive Ion Beam Facility (HRIBF) and used to study the ¹⁷F(p,p)¹⁷F excitation function in the ¹⁷F energy range of 10-12 MeV.

Original language	English
Pages (from-to)	116-119
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	159
Issue number	1-2
DOIs	https://doi.org/10.1016/S0168-583X(99)00515-7
State	Published - 1999

Funding

The authors gratefully acknowledge the numerous contributions of the entire HRIBF staff in making this experiment possible. Oak Ridge National Laboratory is managed by Lockheed Martin Energy Research Corp. for the US Department of Energy under contract number DE-AC05-96OR22464.

Keywords

Astrophysics
Fluorine isotopes
Hafnium Oxide
Ion source
Isotope separation
Radioactive ion beam
Target

Access to Document

10.1016/S0168-583X(99)00515-7

Cite this

@article{d9b8883884d74f12b44aea564fa9a2d4,

title = "A new technique for the production of17F beams",

abstract = "We have demonstrated that radioactive beams of Al17F+can be produced with intensities as high as 3 × 108 ions/s using the conventional Isotope Separation On-Line (ISOL) technique employing fibrous HfO2 target material and an external source of Al vapor. Commercially available HfO2 cloth composed of Φ = 4-6 μm fibers packed to ∼12\% of the bulk density of HfO22, was irradiated with ∼2 μA of 44 MeV deuterons from the Oak Ridge Isochronous Cyclotron (ORIC). The target material (1.6 g/cm2) was contained in a high-temperature reservoir which was coupled through a heated transfer line, to a conventional plasma ion source where the radioactive ion beam was extracted. During irradiation, a flux of elemental Al vapor was directed through the fibrous material forming a transportable molecule which was then extracted from the source as Al17F+. A detailed description of this technique is given and the results of this initial experiment are discussed. The target system was used to inject 17F into the tandem electrostatic accelerator at the Holifield Radioactive Ion Beam Facility (HRIBF) and used to study the 17F(p,p)17F excitation function in the 17F energy range of 10-12 MeV.",

keywords = "Astrophysics, Fluorine isotopes, Hafnium Oxide, Ion source, Isotope separation, Radioactive ion beam, Target",

author = "Welton, \{R. F.\} and Auble, \{R. L.\} and Beene, \{J. R.\} and Blackmon, \{J. C.\} and J. Kormicki and Mueller, \{P. E.\} and Stracener, \{D. W.\} and Williams, \{C. L.\}",

year = "1999",

doi = "10.1016/S0168-583X(99)00515-7",

language = "English",

volume = "159",

pages = "116--119",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - A new technique for the production of17F beams

AU - Welton, R. F.

AU - Auble, R. L.

AU - Beene, J. R.

AU - Blackmon, J. C.

AU - Kormicki, J.

AU - Mueller, P. E.

AU - Stracener, D. W.

AU - Williams, C. L.

PY - 1999

Y1 - 1999

N2 - We have demonstrated that radioactive beams of Al17F+can be produced with intensities as high as 3 × 108 ions/s using the conventional Isotope Separation On-Line (ISOL) technique employing fibrous HfO2 target material and an external source of Al vapor. Commercially available HfO2 cloth composed of Φ = 4-6 μm fibers packed to ∼12% of the bulk density of HfO22, was irradiated with ∼2 μA of 44 MeV deuterons from the Oak Ridge Isochronous Cyclotron (ORIC). The target material (1.6 g/cm2) was contained in a high-temperature reservoir which was coupled through a heated transfer line, to a conventional plasma ion source where the radioactive ion beam was extracted. During irradiation, a flux of elemental Al vapor was directed through the fibrous material forming a transportable molecule which was then extracted from the source as Al17F+. A detailed description of this technique is given and the results of this initial experiment are discussed. The target system was used to inject 17F into the tandem electrostatic accelerator at the Holifield Radioactive Ion Beam Facility (HRIBF) and used to study the 17F(p,p)17F excitation function in the 17F energy range of 10-12 MeV.

AB - We have demonstrated that radioactive beams of Al17F+can be produced with intensities as high as 3 × 108 ions/s using the conventional Isotope Separation On-Line (ISOL) technique employing fibrous HfO2 target material and an external source of Al vapor. Commercially available HfO2 cloth composed of Φ = 4-6 μm fibers packed to ∼12% of the bulk density of HfO22, was irradiated with ∼2 μA of 44 MeV deuterons from the Oak Ridge Isochronous Cyclotron (ORIC). The target material (1.6 g/cm2) was contained in a high-temperature reservoir which was coupled through a heated transfer line, to a conventional plasma ion source where the radioactive ion beam was extracted. During irradiation, a flux of elemental Al vapor was directed through the fibrous material forming a transportable molecule which was then extracted from the source as Al17F+. A detailed description of this technique is given and the results of this initial experiment are discussed. The target system was used to inject 17F into the tandem electrostatic accelerator at the Holifield Radioactive Ion Beam Facility (HRIBF) and used to study the 17F(p,p)17F excitation function in the 17F energy range of 10-12 MeV.

KW - Astrophysics

KW - Fluorine isotopes

KW - Hafnium Oxide

KW - Ion source

KW - Isotope separation

KW - Radioactive ion beam

KW - Target

UR - https://www.scopus.com/pages/publications/0033335763

U2 - 10.1016/S0168-583X(99)00515-7

DO - 10.1016/S0168-583X(99)00515-7

M3 - Article

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SN - 0168-583X

VL - 159

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EP - 119

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

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