Diagnostic system for measurement of particle balance in TMX-U

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Description

Several diagnostics measure the particle sources and losses in the Tandem Mirror Experiment-Upgrade (TMX-U) plasma. An absolutely calibrated high-speed (0.5 ms per frame) filtered (6561 A) video camera measures the total ionization source as a function of radius. An axial view of the plasma automatically integrates the axial variations within the depth of field of the system. Another camera, viewing the plasma radially, measures the axial source variations near the deuterium fueling source. Axial ion losses are measured by an array of Faraday cups that are equipped with grids for repelling electrons and are mounted at each end of the ... continued below

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Pages: 12

Creation Information

Allen, S.L.; Correll, D.L.; Hill, D.N.; Wood, R.D. & Brown, M.D. March 5, 1986.

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Description

Several diagnostics measure the particle sources and losses in the Tandem Mirror Experiment-Upgrade (TMX-U) plasma. An absolutely calibrated high-speed (0.5 ms per frame) filtered (6561 A) video camera measures the total ionization source as a function of radius. An axial view of the plasma automatically integrates the axial variations within the depth of field of the system. Another camera, viewing the plasma radially, measures the axial source variations near the deuterium fueling source. Axial ion losses are measured by an array of Faraday cups that are equipped with grids for repelling electrons and are mounted at each end of the experiment. Unequal ion and electron (nonambipolar) radial losses are inferred from net current measurements on an array of grounded plates at each end. Any differences between the measured particle losses and sources may be attributed to ambipolar radial losses and/or azimuthal asymmetries in the particle-loss profiles. Methods of system calibration, along with details of computer data acquisition and processing of this relatively large set of data, are also presented. 6 refs., 1 fig.

Physical Description

Pages: 12

Notes

NTIS, PC A02/MF A01.

Source

  • 6. topical conference on high temperature plasma diagnostics, Hilton Head Island, SC, USA, 9 Mar 1986

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  • Other: DE86008025
  • Report No.: UCRL-93877
  • Report No.: CONF-860324-7
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 6092451
  • Archival Resource Key: ark:/67531/metadc1112305

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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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  • March 5, 1986

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

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  • April 26, 2018, 2:22 p.m.

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Allen, S.L.; Correll, D.L.; Hill, D.N.; Wood, R.D. & Brown, M.D. Diagnostic system for measurement of particle balance in TMX-U, article, March 5, 1986; [Livermore,] California. (digital.library.unt.edu/ark:/67531/metadc1112305/: accessed August 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.