Neutron-induced noise in NIF-class diagnostic instruments

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Neutron yields form DT-filled ICF targets have reached 10{sup 14}. Above 10{sup 13}, a significant neutron-induced background appears in images recorded with nearby streak cameras. Since cameras components (streak tube, image-intensifier tube, and CCD array) are similar to components that will be used in many NIF instruments, streak camera images provide information about neutron-induced backgrounds that will be encountered in the NIF environment. At a fluence of 10{sup 7} neutrons/cm{sup 2}, the background consists of two distinct components: a uniform component equal to nearly 20% of the camera`s linear range and sharp, intense peaks each localized to just a couple ... continued below

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17 p.

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Lerche, R.A. June 5, 1996.

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Description

Neutron yields form DT-filled ICF targets have reached 10{sup 14}. Above 10{sup 13}, a significant neutron-induced background appears in images recorded with nearby streak cameras. Since cameras components (streak tube, image-intensifier tube, and CCD array) are similar to components that will be used in many NIF instruments, streak camera images provide information about neutron-induced backgrounds that will be encountered in the NIF environment. At a fluence of 10{sup 7} neutrons/cm{sup 2}, the background consists of two distinct components: a uniform component equal to nearly 20% of the camera`s linear range and sharp, intense peaks each localized to just a couple of image pixels. About 80% of the uniform background is caused by interactions with the streak tube and image-intensifier tube. Nearly all of the sharp spikes are caused by interactions with pixels of the CCD array. The spikes make the most significant contribution to image noise.

Physical Description

17 p.

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INIS; OSTI as DE96013659

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  • 11. annual high-temperature plasma diagnostics conference, Monterey, CA (United States), 12-16 May 1996

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  • Other: DE96013659
  • Report No.: UCRL-JC--123556
  • Report No.: CONF-960543--30
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 371327
  • Archival Resource Key: ark:/67531/metadc676378

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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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  • June 5, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 17, 2016, 2:45 p.m.

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Lerche, R.A. Neutron-induced noise in NIF-class diagnostic instruments, article, June 5, 1996; California. (digital.library.unt.edu/ark:/67531/metadc676378/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.