Bulk defect analysis with a high-energy positron beam

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A program using a positron beam to probe defects in bulk materials has been developed at Lawrence Livermore National Laboratory. Positron annihilation lifetime spectroscopy (PALS) provides non-destructive analysis of average defect size and concentration. A 3 MeV positron beam is supplied by Sodium-22 at the terminal of a Pelletron accelerator. The high-energy beam allows large (greater than or equal to 1 cm<sup>2</sup>) engineering samples to be measured in air or even sealed in an independent environment. A description of the beam-PALS system will be presented along with a summary of recent measuremen

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Hartley, J. H.; Howell, R. H. & Sterne, P. A. September 23, 1998.

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Description

A program using a positron beam to probe defects in bulk materials has been developed at Lawrence Livermore National Laboratory. Positron annihilation lifetime spectroscopy (PALS) provides non-destructive analysis of average defect size and concentration. A 3 MeV positron beam is supplied by Sodium-22 at the terminal of a Pelletron accelerator. The high-energy beam allows large (greater than or equal to 1 cm<sup>2</sup>) engineering samples to be measured in air or even sealed in an independent environment. A description of the beam-PALS system will be presented along with a summary of recent measuremen

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396 Kilobytes

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  • Conference on Applications of Accelerators in Research and Industry, Denton, TX, November 4-7, 1998

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  • Other: DE00003395
  • Report No.: UCRL-JC-131480
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 3395
  • Archival Resource Key: ark:/67531/metadc675158

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  • September 23, 1998

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  • July 25, 2015, 2:20 a.m.

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  • May 6, 2016, 9:37 p.m.

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Hartley, J. H.; Howell, R. H. & Sterne, P. A. Bulk defect analysis with a high-energy positron beam, article, September 23, 1998; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc675158/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.