[Dsg-hallb_magnets] [Revised Logentry] Magnet Dump

Amrit Yegneswaran yeg at jlab.org
Sun Feb 17 19:18:40 EST 2019


brian,
didn't get to seey our email till now.
am not expecting an answer, we'll discuss this in the morning.

  1.  unfortunately, i can't see the graph, shall visit the logbook
  2.  what was the manifold fix of nov, 2018, is this with the LCW bldg 90e something or another?
  3.  what is severe, since i can't see the graph, perhaps its a huge peak, how huge.

goodnight and godbless
amrit



________________________________
From: Dsg-hallb_magnets <dsg-hallb_magnets-bounces at jlab.org> on behalf of beng at jlab.org <beng at jlab.org>
Sent: Sunday, February 17, 2019 9:10 AM
To: dsg-hallb_magnets at jlab.org
Subject: [Dsg-hallb_magnets] [Revised Logentry] Magnet Dump

Magnet Dump<https://logbooks.jlab.org/entry/3654944>

  *   Edit<https://logbooks.jlab.org/entry/3654944/edit?destination=email/send>
  *   Delete<https://logbooks.jlab.org/entry/3654944/delete?destination=email/send>

Lognumber 3654944<https://logbooks.jlab.org/entry/3654944>. Submitted by beng<https://logbooks.jlab.org/user/beng> on Sun, 02/17/2019 - 09:08<https://logbooks.jlab.org/entries?start_date=1550408881&end_date=1550416081&book=HBLOG&book=HBSOLENOID&book=HBTORUS>.

Last updated on Sun, 02/17/2019 - 09:08

Logbooks:       HBLOG<https://logbooks.jlab.org/book/hblog> HBSOLENOID<https://logbooks.jlab.org/book/hbsolenoid> HBTORUS<https://logbooks.jlab.org/book/hbtorus>
References:     3654880 - Solenoid quenched<https://logbooks.jlab.org/entry/3654880>
3632113 - Follow-up Re: Follow-up Re: Follow-up Re: Internal flow meter testing<https://logbooks.jlab.org/entry/3632113>

Aside from both magnets doing a fast dump (which is new) from the data it looks like the manifold fix in November actually worked as there was a peak (~3:30) that previously would have caused the solenoid to dump and the second (~4:00) was what finally caused the dump but since it was much more severe (loss of pressure) it took down both magnets.

[https://logbooks.jlab.org/files/styles/plentybig/public/2019/02/3654944/Screen%20Shot%202019-02-17%20at%208.44.08%20AM.png]
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