“Magnetically insulated grid IEC”

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Michael Bretti
Posts: 137
Joined: Tue Aug 01, 2017 4:58 pm
Real name: Michael Bretti

Re: “Magnetically insulated grid IEC”

Post by Michael Bretti » Sun Jun 10, 2018 12:13 am

What ultimate pressure and operating pressure are you looking to achieve? What gas flow rates as well? Cryopumping definitely has the highest pumping speeds of any type of high vacuum pump, though it comes with its own unique costs and challenges. For this type of chamber, you are really limited to either diffusion or cryo, both of which require roughing before operating, though you are definitely getting to the size where cryo starts to make more sense. For any chamber though the pump has to be spec'd and sized properly for the system. If you have the infrastructure to support cryo, that can support both very clean and extremely fast pumping. I'd definitely be interested in hearing more about the pumping setup and chamber.

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Joined: Fri May 04, 2018 2:17 pm
Real name: Tanner Horne

Re: “Magnetically insulated grid IEC”

Post by tannerhorne » Mon Jun 25, 2018 8:13 pm

There will be 3 stages of pumping and a cryopump will be incorporated. We are looking for a clean vacuum operating pressure of 10^-7 torr. Certainly no diffusion pumps. Unfortunately I can't detail more on the system design, it is a challenge though given the size and surface area.

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