TJ-II:Plasma Wall Interaction

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To condition the wall of the TJ-II vacuum vessel, a number of techniques is used.

Glow Discharge Cleaning

Glow discharge cleaning is routinely used at TJ-II. [1] [2]

Wall conditioning

Careful control of wall conditions is essential for successful operation. [3]

The walls can be coated by various materials, using a set of evaporation ovens. TJ-II was the first stellarator to be operated with Lithium-coated walls.

  • Metal wall
  • Boron-coated wall [4]
  • Lithium-coated wall [5] [6]

References

  1. ↑ D. Tafalla and F.L. Tabarés, Journal of Nuclear Materials 290-293 (2001) 1195-1198
  2. ↑ D. Tafalla and F.L. Tabarés, Vacuum 64, Issues 3-4 (2002) 411-415
  3. ↑ F.L. Tabarés et al, Journal of Nuclear Materials 290-293 (2001) 748-752
  4. ↑ D. Tafalla and F.L. Tabarés, Vacuum 67, Issues 3-4 (2002) 393-397
  5. ↑ F.L. Tabarés at al, Plasma Phys. Control. Fusion 50 (2008) 124051
  6. ↑ J. Sánchez et al, Journal of Nuclear Materials 390-391 (2009) 852-857
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