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Design and manufacture of DIII-D neutral beam pole shields with copper plates and molybdenum inserts

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The copper pole shields for the neutral beam lines that have been in service at DIII-D have experienced localized melting and fatigue cracks on the front faces which have migrated into the cooling tube grooves machined in the back of the copper plates, leading to water leaks. A solution was required for longer beam pulse lengths and higher beam power operation planned for DIII-D which was limited by the pole shield heat handling capability. An upgraded pole shield design was developed by the Princeton Plasma Physics Laboratory to handle these elevated and extended thermal loads.

Original languageEnglish (US)
Title of host publication2015 IEEE 26th Symposium on Fusion Engineering, SOFE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479982646
DOIs
StatePublished - May 31 2016
Event26th IEEE Symposium on Fusion Engineering, SOFE 2015 - Austin, United States
Duration: May 31 2015Jun 4 2015

Publication series

NameProceedings - Symposium on Fusion Engineering
Volume2016-May

Other

Other26th IEEE Symposium on Fusion Engineering, SOFE 2015
Country/TerritoryUnited States
CityAustin
Period5/31/156/4/15

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

Keywords

  • high heat flux
  • Molybdenum
  • Neutral beams pole shields
  • transient analysis

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