High Efficiency Release Targets for Use at ISOL Facilities: Computational Design

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This report describes efforts made at the oak Rklge NatiOnrd Laboratory to design high- efficiency-release targets that simultaneously incorporate the short diffusion lengths, high permeabilities, controllable temperatures, and heat-removal properties required for the generation of useful radioactive ion beam (RIB) intensities for nuclear physics and astrophysics research using the isotope separation on-line (ISOL) technique. Short diffusion lengths are achieved either by using thin fibrous target materials or by coating thin layers of selected target material onto low-density carbon fibers such as reticulated-vitreous-carbon fiber (RVCF) or carbon-bonded-carbon fiber (CBCF) to form highly permeable composite target matrices. Computational studies that simulate the ... continued below

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14 Pages

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Alton, G.D. & Liu, Y. October 5, 1999.

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Description

This report describes efforts made at the oak Rklge NatiOnrd Laboratory to design high- efficiency-release targets that simultaneously incorporate the short diffusion lengths, high permeabilities, controllable temperatures, and heat-removal properties required for the generation of useful radioactive ion beam (RIB) intensities for nuclear physics and astrophysics research using the isotope separation on-line (ISOL) technique. Short diffusion lengths are achieved either by using thin fibrous target materials or by coating thin layers of selected target material onto low-density carbon fibers such as reticulated-vitreous-carbon fiber (RVCF) or carbon-bonded-carbon fiber (CBCF) to form highly permeable composite target matrices. Computational studies that simulate the generation and removal of primary beam deposited heat from target materials have been conducted to optimize the design of targetheat-sink systems for generating RIBs. The results derived from diffusion release-rate simulation studies for selected targets and thermal analyses of temperature distributions within a prototype targetlheat-sink system subjected to primary ion beam irradiation will be presented in this report.

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14 Pages

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  • 19th World Conference of the International Nuclear Target Development Society, Oak Ridge, TN, October 5-9, 1998

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  • Other: DE00006222
  • Report No.: ORNL/CP-102619
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 6222
  • Archival Resource Key: ark:/67531/metadc696607

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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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  • October 5, 1999

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  • Aug. 14, 2015, 8:43 a.m.

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  • June 10, 2016, 5:08 p.m.

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Alton, G.D. & Liu, Y. High Efficiency Release Targets for Use at ISOL Facilities: Computational Design, article, October 5, 1999; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc696607/: accessed October 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.