[Sns_ppu_group] Vacuum Plans for PPU01 cryomodule

[Bryan Foley]

Excellent news! Congratulations everyone!

Bryan
________________________________
From: Sns_ppu_group <sns_ppu_group-bounces at jlab.org> on behalf of Ed Daly <edaly at jlab.org>
Sent: Wednesday, March 23, 2022 5:17 PM
To: sns_ppu_group at jlab.org <sns_ppu_group at jlab.org>
Subject: [Sns_ppu_group] Fwd: Vacuum Plans for PPU01 cryomodule

Hello PPUers,
First CM is a gem.  Nice work that is much appreciated and recognized by our ORNL colleagues.

Thanks for all of the good work!
Ed

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________________________________
From: Galambos, John D. <galambosjd at ornl.gov>
Sent: Wednesday, March 23, 2022 5:09:16 PM
To: Kim, Sang-Ho <kimsh at ornl.gov>; Mammosser, John <mammosserjd at ornl.gov>; Howell, Matthew <howellm at ornl.gov>; Geng, Rong-Li <gengr at ornl.gov>; Afanador, Ralph <afanadorr at ornl.gov>; Mcmahan, Christopher <mcmahancj at ornl.gov>; Vandygriff, Daniel J. <vandygriffdj at ornl.gov>; Vandygriff, David M. <vandygriffdm at ornl.gov>; Gold, Steven W. <goldsw at ornl.gov>; Barnhart, Debra <barnhart at ornl.gov>; Kraft, David <kraftdd at ornl.gov>; Neustadt, Thomas S. <neustadt at ornl.gov>; Doleans, Marc <doleansmm at ornl.gov>; Pinion, Luke <pinioncl at ornl.gov>
Cc: Champion, Mark <championms at ornl.gov>; Ed Daly <edaly at jlab.org>
Subject: [EXTERNAL] Re: Vacuum Plans for PPU01 cryomodule

Well done to al.

What a relief!

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________________________________
From: Kim, Sang-Ho <kimsh at ornl.gov>
Sent: Wednesday, March 23, 2022 4:55:57 PM
To: Mammosser, John <mammosserjd at ornl.gov>; Howell, Matthew <howellm at ornl.gov>; Geng, Rong-Li <gengr at ornl.gov>; Afanador, Ralph <afanadorr at ornl.gov>; Mcmahan, Christopher <mcmahancj at ornl.gov>; Vandygriff, Daniel J. <vandygriffdj at ornl.gov>; Vandygriff, David M. <vandygriffdm at ornl.gov>; Gold, Steven W. <goldsw at ornl.gov>; Barnhart, Debra <barnhart at ornl.gov>; Kraft, David <kraftdd at ornl.gov>; Neustadt, Thomas S. <neustadt at ornl.gov>; Doleans, Marc <doleansmm at ornl.gov>; Pinion, Luke <pinioncl at ornl.gov>
Cc: Galambos, John D. <galambosjd at ornl.gov>; Champion, Mark <championms at ornl.gov>; Ed Daly <edaly at jlab.org>
Subject: RE: Vacuum Plans for PPU01 cryomodule


Excellent team work and great result!

Congratulations!



From: Mammosser, John <mammosserjd at ornl.gov>
Sent: Wednesday, March 23, 2022 3:25 PM
To: Howell, Matthew <howellm at ornl.gov>; Geng, Rong-Li <gengr at ornl.gov>; Afanador, Ralph <afanadorr at ornl.gov>; Mcmahan, Christopher <mcmahancj at ornl.gov>; Vandygriff, Daniel J. <vandygriffdj at ornl.gov>; Vandygriff, David M. <vandygriffdm at ornl.gov>; Gold, Steven W. <goldsw at ornl.gov>; Barnhart, Debra <barnhart at ornl.gov>; Kraft, David <kraftdd at ornl.gov>; Neustadt, Thomas S. <neustadt at ornl.gov>; Doleans, Marc <doleansmm at ornl.gov>; Pinion, Luke <pinioncl at ornl.gov>; Kim, Sang-Ho <kimsh at ornl.gov>
Subject: Vacuum Plans for PPU01 cryomodule



Congratulations to everyone in the group for the great success on the first PPU cryomodule qualification.  Thankyou for all your hard work to accomplish this goal,  we have an amazing team.  Testing of all four cavities was completed and all reached our 18MV/m admin limit and exceeds the PPU specifications for installation in the accelerator.  We should all celebrate with a beer at Crafters Brew this Friday first round is on me.



Plans for the PPU01 vacuum are as follows:



The ion pump will be turned off today (pump cart is already isolated, right angle valve) and the start of warmup should begin.  When the temperature of the cavities all reach 20K then the pump cart should be opened to the beamline (open the right angle valve at the ion pump) .  When the overall pressure on the beamline reaches its baseline or low pressure 3e-8Torr, then the pump cart should be isolated and the ion pump turned back on.





Thanks in Advance

John M
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