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I Vacuum chamber pressure calculation in TOKAMAKS

  1. Apr 26, 2016 #1
    Hello all!

    I understand the concept of the TOKAMAK vacuum chamber, but can someone explain to me how I can actually calculate the pressure in which I need the chamber to be evacuated? I know it should be in the range of approximately 10^-7 or so but more specifically, is there an equation to calculate the actual number?

    Thank you in advance.
  2. jcsd
  3. Apr 26, 2016 #2


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    Staff: Mentor

    Better will work better, and different tokamaks will use different pressures. Did you check the publications?
  4. Apr 26, 2016 #3
    I've searched online in PDFs and some, related to my question, publications but I couldn't find anything besides general information regarding vacuum and its typical values for a tokamak. I didn't find anything regarding a calculation process.
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