One dimensional imager of neutrons on the Z machine
We recently developed a one-dimensional imager of neutrons on the Z facility. The instrument is designed for Magnetized Liner Inertial Fusion (MagLIF) experiments, which produce D-D neutrons yields of ∼3 × 1012. X-ray imaging indicates that the MagLIF stagnation region is a 10-mm long, ∼100-μm diame...
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| Veröffentlicht in: | Review of scientific instruments 2018-10, Vol.89 (10), p.10I132-10I132 |
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| creator | Ampleford, David J. Ruiz, Carlos L. Fittinghoff, David N. Vaughan, Jeremy D. Hahn, Kelly Lahmann, Brandon Gatu-Johnson, Maria Frenje, Johan Petrasso, Richard Ball, Christopher R. Maurer, Andrew J. Knapp, Patrick F. Harvey-Thompson, Adam J. Fisher, John Alberto, Perry Torres, Jose A. Cooper, Gary Jones, Brent Rochau, Gregory A. May, Mark J. |
| description | We recently developed a one-dimensional imager of neutrons on the Z facility. The instrument is designed for Magnetized Liner Inertial Fusion (MagLIF) experiments, which produce D-D neutrons yields of ∼3 × 1012. X-ray imaging indicates that the MagLIF stagnation region is a 10-mm long, ∼100-μm diameter column. The small radial extents and present yields precluded useful radial resolution, so a one-dimensional imager was developed. The imaging component is a 100-mm thick tungsten slit; a rolled-edge slit limits variations in the acceptance angle along the source. CR39 was chosen as a detector due to its negligible sensitivity to the bright x-ray environment in Z. A layer of high density poly-ethylene is used to enhance the sensitivity of CR39. We present data from fielding the instrument on Z, demonstrating reliable imaging and track densities consistent with diagnosed yields. For yields ∼3 × 1012, we obtain resolutions of ∼500 μm. |
| doi_str_mv | 10.1063/1.5038118 |
| format | Article |
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(LLNL), Livermore, CA (United States)</creatorcontrib><description>We recently developed a one-dimensional imager of neutrons on the Z facility. The instrument is designed for Magnetized Liner Inertial Fusion (MagLIF) experiments, which produce D-D neutrons yields of ∼3 × 1012. X-ray imaging indicates that the MagLIF stagnation region is a 10-mm long, ∼100-μm diameter column. The small radial extents and present yields precluded useful radial resolution, so a one-dimensional imager was developed. The imaging component is a 100-mm thick tungsten slit; a rolled-edge slit limits variations in the acceptance angle along the source. CR39 was chosen as a detector due to its negligible sensitivity to the bright x-ray environment in Z. A layer of high density poly-ethylene is used to enhance the sensitivity of CR39. We present data from fielding the instrument on Z, demonstrating reliable imaging and track densities consistent with diagnosed yields. For yields ∼3 × 1012, we obtain resolutions of ∼500 μm.</description><identifier>ISSN: 0034-6748</identifier><identifier>EISSN: 1089-7623</identifier><identifier>DOI: 10.1063/1.5038118</identifier><identifier>PMID: 30399820</identifier><identifier>CODEN: RSINAK</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>70 PLASMA PHYSICS AND FUSION ; GENERAL STUDIES OF NUCLEAR REACTORS ; Imaging ; Inertial fusion (reactor) ; INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ; Neutrons ; Scientific apparatus & instruments ; Sensitivity enhancement ; Stagnation point ; Tungsten</subject><ispartof>Review of scientific instruments, 2018-10, Vol.89 (10), p.10I132-10I132</ispartof><rights>Author(s)</rights><rights>2018 Author(s). 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(LLNL), Livermore, CA (United States)</creatorcontrib><title>One dimensional imager of neutrons on the Z machine</title><title>Review of scientific instruments</title><addtitle>Rev Sci Instrum</addtitle><description>We recently developed a one-dimensional imager of neutrons on the Z facility. The instrument is designed for Magnetized Liner Inertial Fusion (MagLIF) experiments, which produce D-D neutrons yields of ∼3 × 1012. X-ray imaging indicates that the MagLIF stagnation region is a 10-mm long, ∼100-μm diameter column. The small radial extents and present yields precluded useful radial resolution, so a one-dimensional imager was developed. The imaging component is a 100-mm thick tungsten slit; a rolled-edge slit limits variations in the acceptance angle along the source. CR39 was chosen as a detector due to its negligible sensitivity to the bright x-ray environment in Z. A layer of high density poly-ethylene is used to enhance the sensitivity of CR39. We present data from fielding the instrument on Z, demonstrating reliable imaging and track densities consistent with diagnosed yields. For yields ∼3 × 1012, we obtain resolutions of ∼500 μm.</description><subject>70 PLASMA PHYSICS AND FUSION</subject><subject>GENERAL STUDIES OF NUCLEAR REACTORS</subject><subject>Imaging</subject><subject>Inertial fusion (reactor)</subject><subject>INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY</subject><subject>Neutrons</subject><subject>Scientific apparatus & instruments</subject><subject>Sensitivity enhancement</subject><subject>Stagnation point</subject><subject>Tungsten</subject><issn>0034-6748</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp90MtKxDAYhuEgio6HhTcgRTcqVP80h6ZLGTzBgBvduAlpmjiVaTImreDdmzKjgqDdhMLDR_IidIjhAgMnl_iCAREYiw00wSCqvOQF2UQTAEJzXlKxg3ZjfIX0MYy30Q4BUlWigAkiD85kTdsZF1vv1CJrO_ViQuZt5szQB-9i5l3Wz032nHVKz1tn9tGWVYtoDtbnHnq6uX6c3uWzh9v76dUs15SyPlfMcqixFqrgNVO8KJXgJZQFs7SiRGFmyrqxVvGG17rhTS0IsxbSv20soWQPHa92fexbGXXbGz3X3jmje4kpEZxUCZ2u0DL4t8HEXnZt1GaxUM74IcoCExAAAkOiJ7_oqx9CevSosGCMUzYOnq2UDj7GYKxchhQlfEgMcswtsVznTvZovTjUnWm-5VffBM5XYLy96lPif9f-xO8-_EC5THk-ASGBk2U</recordid><startdate>20181001</startdate><enddate>20181001</enddate><creator>Ampleford, David J.</creator><creator>Ruiz, Carlos L.</creator><creator>Fittinghoff, David N.</creator><creator>Vaughan, Jeremy D.</creator><creator>Hahn, Kelly</creator><creator>Lahmann, Brandon</creator><creator>Gatu-Johnson, Maria</creator><creator>Frenje, Johan</creator><creator>Petrasso, Richard</creator><creator>Ball, Christopher R.</creator><creator>Maurer, Andrew J.</creator><creator>Knapp, Patrick F.</creator><creator>Harvey-Thompson, Adam J.</creator><creator>Fisher, John</creator><creator>Alberto, Perry</creator><creator>Torres, Jose A.</creator><creator>Cooper, Gary</creator><creator>Jones, Brent</creator><creator>Rochau, Gregory A.</creator><creator>May, Mark J.</creator><general>American Institute of Physics</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-5883-4054</orcidid><orcidid>https://orcid.org/0000-0002-3742-2421</orcidid><orcidid>https://orcid.org/0000-0002-2383-1275</orcidid><orcidid>https://orcid.org/0000-0002-3009-8673</orcidid><orcidid>https://orcid.org/0000-0002-4599-8463</orcidid><orcidid>https://orcid.org/0000-0001-6846-0378</orcidid><orcidid>https://orcid.org/0000-0002-6089-8911</orcidid><orcidid>https://orcid.org/0000000230098673</orcidid><orcidid>https://orcid.org/0000000168460378</orcidid><orcidid>https://orcid.org/0000000245998463</orcidid><orcidid>https://orcid.org/0000000237422421</orcidid><orcidid>https://orcid.org/0000000260898911</orcidid><orcidid>https://orcid.org/0000000258834054</orcidid><orcidid>https://orcid.org/0000000223831275</orcidid></search><sort><creationdate>20181001</creationdate><title>One dimensional imager of neutrons on the Z machine</title><author>Ampleford, David J. ; Ruiz, Carlos L. ; Fittinghoff, David N. ; Vaughan, Jeremy D. ; Hahn, Kelly ; Lahmann, Brandon ; Gatu-Johnson, Maria ; Frenje, Johan ; Petrasso, Richard ; Ball, Christopher R. ; Maurer, Andrew J. ; Knapp, Patrick F. ; Harvey-Thompson, Adam J. ; Fisher, John ; Alberto, Perry ; Torres, Jose A. ; Cooper, Gary ; Jones, Brent ; Rochau, Gregory A. ; May, Mark J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c445t-a5f60b1c8a26b5a627a8670725f4943a15e7bdffa6d6bcd6db835ff0a6dfdf343</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>70 PLASMA PHYSICS AND FUSION</topic><topic>GENERAL STUDIES OF NUCLEAR REACTORS</topic><topic>Imaging</topic><topic>Inertial fusion (reactor)</topic><topic>INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY</topic><topic>Neutrons</topic><topic>Scientific apparatus & instruments</topic><topic>Sensitivity enhancement</topic><topic>Stagnation point</topic><topic>Tungsten</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ampleford, David J.</creatorcontrib><creatorcontrib>Ruiz, Carlos L.</creatorcontrib><creatorcontrib>Fittinghoff, David N.</creatorcontrib><creatorcontrib>Vaughan, Jeremy D.</creatorcontrib><creatorcontrib>Hahn, Kelly</creatorcontrib><creatorcontrib>Lahmann, Brandon</creatorcontrib><creatorcontrib>Gatu-Johnson, Maria</creatorcontrib><creatorcontrib>Frenje, Johan</creatorcontrib><creatorcontrib>Petrasso, Richard</creatorcontrib><creatorcontrib>Ball, Christopher R.</creatorcontrib><creatorcontrib>Maurer, Andrew J.</creatorcontrib><creatorcontrib>Knapp, Patrick F.</creatorcontrib><creatorcontrib>Harvey-Thompson, Adam J.</creatorcontrib><creatorcontrib>Fisher, John</creatorcontrib><creatorcontrib>Alberto, Perry</creatorcontrib><creatorcontrib>Torres, Jose A.</creatorcontrib><creatorcontrib>Cooper, Gary</creatorcontrib><creatorcontrib>Jones, Brent</creatorcontrib><creatorcontrib>Rochau, Gregory A.</creatorcontrib><creatorcontrib>May, Mark J.</creatorcontrib><creatorcontrib>Lawrence Livermore National Lab. 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(LLNL), Livermore, CA (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>One dimensional imager of neutrons on the Z machine</atitle><jtitle>Review of scientific instruments</jtitle><addtitle>Rev Sci Instrum</addtitle><date>2018-10-01</date><risdate>2018</risdate><volume>89</volume><issue>10</issue><spage>10I132</spage><epage>10I132</epage><pages>10I132-10I132</pages><issn>0034-6748</issn><eissn>1089-7623</eissn><coden>RSINAK</coden><abstract>We recently developed a one-dimensional imager of neutrons on the Z facility. The instrument is designed for Magnetized Liner Inertial Fusion (MagLIF) experiments, which produce D-D neutrons yields of ∼3 × 1012. X-ray imaging indicates that the MagLIF stagnation region is a 10-mm long, ∼100-μm diameter column. The small radial extents and present yields precluded useful radial resolution, so a one-dimensional imager was developed. The imaging component is a 100-mm thick tungsten slit; a rolled-edge slit limits variations in the acceptance angle along the source. CR39 was chosen as a detector due to its negligible sensitivity to the bright x-ray environment in Z. A layer of high density poly-ethylene is used to enhance the sensitivity of CR39. We present data from fielding the instrument on Z, demonstrating reliable imaging and track densities consistent with diagnosed yields. For yields ∼3 × 1012, we obtain resolutions of ∼500 μm.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><pmid>30399820</pmid><doi>10.1063/1.5038118</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-5883-4054</orcidid><orcidid>https://orcid.org/0000-0002-3742-2421</orcidid><orcidid>https://orcid.org/0000-0002-2383-1275</orcidid><orcidid>https://orcid.org/0000-0002-3009-8673</orcidid><orcidid>https://orcid.org/0000-0002-4599-8463</orcidid><orcidid>https://orcid.org/0000-0001-6846-0378</orcidid><orcidid>https://orcid.org/0000-0002-6089-8911</orcidid><orcidid>https://orcid.org/0000000230098673</orcidid><orcidid>https://orcid.org/0000000168460378</orcidid><orcidid>https://orcid.org/0000000245998463</orcidid><orcidid>https://orcid.org/0000000237422421</orcidid><orcidid>https://orcid.org/0000000260898911</orcidid><orcidid>https://orcid.org/0000000258834054</orcidid><orcidid>https://orcid.org/0000000223831275</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Review of scientific instruments, 2018-10, Vol.89 (10), p.10I132-10I132 |
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| subjects | 70 PLASMA PHYSICS AND FUSION GENERAL STUDIES OF NUCLEAR REACTORS Imaging Inertial fusion (reactor) INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY Neutrons Scientific apparatus & instruments Sensitivity enhancement Stagnation point Tungsten |
| title | One dimensional imager of neutrons on the Z machine |
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