Divertor material evaluation system at DIII-D

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The DIvertor Material Evaluation System (DIMES) at DIII-D is a collaborative program between General Atomics, Sandia National Laboratories (SNL), and Argonne National Laboratory (ANL). This program was initiated in response to the need for understanding the interaction between the plasma and divertor surface materials in tokamaks. Material erosion, tritium retention, disruption effects and material transport are very important topics for the design of ITER. The first phase of the DIMES study is integral material exposure measurements. The second phase of the study is the installation of the DIMES sample changer mechanism. The mechanical design goal for the second phase is ... continued below

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Pages: (17 p)

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Wong, C.P.C.; Jungle, R.; Phelps, R.D.; Politzer, P.; Puhn, F.; West, W.P. (General Atomics, San Diego, CA (United States)) et al. April 1, 1992.

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Description

The DIvertor Material Evaluation System (DIMES) at DIII-D is a collaborative program between General Atomics, Sandia National Laboratories (SNL), and Argonne National Laboratory (ANL). This program was initiated in response to the need for understanding the interaction between the plasma and divertor surface materials in tokamaks. Material erosion, tritium retention, disruption effects and material transport are very important topics for the design of ITER. The first phase of the DIMES study is integral material exposure measurements. The second phase of the study is the installation of the DIMES sample changer mechanism. The mechanical design goal for the second phase is to allow the insertion of instrumented samples into the bottom divertor plat region of DIII-D without venting the tokamak. Different material samples can then be exchanged overnight after as few as one plasma shot of exposure. This paper presents the results of the integral experiments, the design of the DIMES sample changer mechanism and the planning of material evaluation experiments at DIII-D using the DIMES mechanism.

Physical Description

Pages: (17 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • 10. international conference on plasma-surface interactions in controlled fusion devices, Monterey, CA (United States), 30 Mar - 3 Apr 1992

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  • Other: DE92013696
  • Report No.: GA-A-20877
  • Report No.: CONF-920311--8
  • Grant Number: AC03-89ER52153
  • Office of Scientific & Technical Information Report Number: 5256867
  • Archival Resource Key: ark:/67531/metadc1064791

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  • April 1, 1992

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 2, 2018, 5:22 p.m.

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Wong, C.P.C.; Jungle, R.; Phelps, R.D.; Politzer, P.; Puhn, F.; West, W.P. (General Atomics, San Diego, CA (United States)) et al. Divertor material evaluation system at DIII-D, article, April 1, 1992; United States. (digital.library.unt.edu/ark:/67531/metadc1064791/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.