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Feature #1999

SS Field/Current stability

Added by Nebrensky, Henry 10 months ago. Updated 9 months ago.

Status:
Closed
Priority:
Normal
Start date:
27 November 2020
Due date:
% Done:

100%

Estimated time:

Description

Try to generate a history plot of field in the Tracker, for Systems paper.


Files

CoolChan-SS_PSUsystem-control1.png (57.6 KB) CoolChan-SS_PSUsystem-control1.png Tracker Hall probe - closeup Nebrensky, Henry, 27 November 2020 23:49
CoolChan-SS_PSUsystem-control2.png (56.8 KB) CoolChan-SS_PSUsystem-control2.png Tracker Hall probe - one CC setting Nebrensky, Henry, 27 November 2020 23:51
CoolChan-SSU-2016.04-1.5_A.png (51.9 KB) CoolChan-SSU-2016.04-1.5_A.png Setting 2016.04-1.5 all Nebrensky, Henry, 22 December 2020 01:36
CoolChan-SSU-2016.04-1.5_B.png (64.2 KB) CoolChan-SSU-2016.04-1.5_B.png Setting 2016.04-1.5 zoom Nebrensky, Henry, 22 December 2020 01:37
CoolChan-SSU-2017-02-2_A.png (57.8 KB) CoolChan-SSU-2017-02-2_A.png Setting 2017-02-2 all Nebrensky, Henry, 22 December 2020 01:37
CoolChan-SSU-2017-02-2_B.png (70.9 KB) CoolChan-SSU-2017-02-2_B.png Setting 2017-02-2 zoom Nebrensky, Henry, 22 December 2020 01:38
CoolChan-SSU-2017-02-2_C.png (60.5 KB) CoolChan-SSU-2017-02-2_C.png Setting 2017-02-2 with SSD currents Nebrensky, Henry, 22 December 2020 01:39
CoolChan-SSU-2017-02-2_D.png (61.8 KB) CoolChan-SSU-2017-02-2_D.png Setting 2017-02-2 with SSD currents and field Nebrensky, Henry, 22 December 2020 01:40
CoolChan-SSU-2017-02-2_E.png (51.9 KB) CoolChan-SSU-2017-02-2_E.png Setting 2017-02-2 with other SSU coils Nebrensky, Henry, 22 December 2020 01:40
CoolChan-SSU-2017-02-3_A.png (48.6 KB) CoolChan-SSU-2017-02-3_A.png Setting 2017-02-3 all Nebrensky, Henry, 22 December 2020 01:41
CoolChan-SSU-2017-02-3_B.png (51.2 KB) CoolChan-SSU-2017-02-3_B.png Setting 2017-02-3 vertical zoom Nebrensky, Henry, 22 December 2020 01:42
CoolChan-SSU-2017-02-3_C.png (68.3 KB) CoolChan-SSU-2017-02-3_C.png Setting 2017-02-3 zoom Nebrensky, Henry, 22 December 2020 01:42
CoolChan-SSU-2017-02-6_A.png (49.9 KB) CoolChan-SSU-2017-02-6_A.png Setting 2017-02-6 LH2 all Nebrensky, Henry, 23 December 2020 22:51
CoolChan-SSU-2017-02-6_B.png (54.6 KB) CoolChan-SSU-2017-02-6_B.png Setting 2017-02-6 start Nebrensky, Henry, 23 December 2020 22:52
CoolChan-SSU-2017-02-6_C.png (58.5 KB) CoolChan-SSU-2017-02-6_C.png Setting 2017-02-6 zoom Nebrensky, Henry, 23 December 2020 22:52
CoolChan-SSU-2017-02-6_D.png (66.9 KB) CoolChan-SSU-2017-02-6_D.png Setting 2017-02-6 inc FC Nebrensky, Henry, 23 December 2020 22:53
CoolChan-SSU-2017-02-6_E.png (65.5 KB) CoolChan-SSU-2017-02-6_E.png Setting 2017-02-6 inc FC all Nebrensky, Henry, 23 December 2020 22:53
CoolChan-SSU-2017-02-2_F.png (52.6 KB) CoolChan-SSU-2017-02-2_F.png Setting 2017-02-2 LH2 empty all Nebrensky, Henry, 23 December 2020 22:54
CoolChan-SSU-2017-02-2_G.png (57.2 KB) CoolChan-SSU-2017-02-2_G.png Setting 2017-02-2 inc FC start Nebrensky, Henry, 23 December 2020 22:56
CoolChan-SSU-2017-02-2_H.png (63 KB) CoolChan-SSU-2017-02-2_H.png Setting 2017-02-2 inc FC zoom Nebrensky, Henry, 23 December 2020 22:57
CoolChan-SSU-2017-02-3_D.png (48.5 KB) CoolChan-SSU-2017-02-3_D.png Setting 2017-02-3 LH2 empty all Nebrensky, Henry, 23 December 2020 22:57
CoolChan-SSU-2017-02-3_E.png (57.5 KB) CoolChan-SSU-2017-02-3_E.png Setting 2017-02-3 start Nebrensky, Henry, 23 December 2020 22:58
CoolChan-SSU-2017-02-3_F.png (51.7 KB) CoolChan-SSU-2017-02-3_F.png Setting 2017-02-3 inc FC all Nebrensky, Henry, 23 December 2020 22:59
CoolChan-SSU-2017-02-3_G.png (60.3 KB) CoolChan-SSU-2017-02-3_G.png Setting 2017-02-3zoom Nebrensky, Henry, 23 December 2020 23:00
CoolChan-SSD-2017-02-2_A.png (64.1 KB) CoolChan-SSD-2017-02-2_A.png Setting 2017-02-2 SSD zoom with SSU Nebrensky, Henry, 24 December 2020 00:29
CoolChan-SSD-2017-02-3_A.png (55.9 KB) CoolChan-SSD-2017-02-3_A.png Setting 2017-02-3 SSD all Nebrensky, Henry, 24 December 2020 00:31
CoolChan-SSD-2017-02-3_B.png (58.1 KB) CoolChan-SSD-2017-02-3_B.png Setting 2017-02-3 SSD start Nebrensky, Henry, 24 December 2020 00:31
CoolChan-SSD-2017-02-3_C.png (68.7 KB) CoolChan-SSD-2017-02-3_C.png Setting 2017-02-3 SSD zoom Nebrensky, Henry, 24 December 2020 00:31
CoolChan-SSD-2017-02-3_D.png (58.6 KB) CoolChan-SSD-2017-02-3_D.png Setting 2017-02-3 SSD zoom with SSU Nebrensky, Henry, 24 December 2020 00:32
#2

Updated by Nebrensky, Henry 10 months ago

Attached a couple of plots straight from MLCR EPICS archiver. Didn't have any time so picked PV and time interval at random...
Should be possible to repeat via remote access or PPD instance .

#3

Updated by Nebrensky, Henry 10 months ago

Last Monday I checked the mapping of EPICS PV's on to the EPICS EDM panel (arbitrary historical screenshot):

Columns match the screenshot: [PV name] ; PV:STA ; PV:BX ; PV:BY ; PV:BZ ; PV:B ; PV:B.EGU ; PV:STA.RVAL (?)

Rows:
  • SSU:
    • MICE-SSU-HP-77
    • MICE-SSU-HP-65
    • MICE-SSU-HP-67
    • MICE-SSU-HP-79
  • SSD:
    • MICE-SSD-HP-73
    • MICE-SSD-HP-72
    • MICE-SSD-HP-66
    • MICE-SSD-HP-80
  • External:
    • MICE-CHAN-HP-01
    • MICE-CHAN-HP-02
    • MICE-CHAN-HP-03
    • MICE-CHAN-HP-04

I was expecting to cross-check the description (implying location) of each PV against the [[cm:SystemSpreadsheets|ALH spreadsheet]], but the Services/Environment one doesn't have the description column filled out.
Tom Lord (at CM57 ) avoids sensors 66, 67, 80 (slide 10).

PVs for the current (in the centre coil, surrounding Tracker):
  • SSU:
    • MICE-SSU-CNTR-01:IMAG
    • MICE-SSU-DCCT-01:E1_C_E2:I
  • SSD:
    • MICE-SSD-CNTR-01:IMAG
    • MICE-SSD-DCCT-01:E1_C_E2:I
#4

Updated by Nebrensky, Henry 10 months ago

Channel settings (randomly chosen, ATM):

Solenoid - LiH
2016.04-1.5      2016-12-05 11:00
      ramp 'til  2016-12-05 13:38 start run  8733
      hold 'til  2016-12-08 12:30   end run  8775

Flip - LiH
2016-05-1-SSUSSD 2017-02-20 08:00
      ramp 'til  2017-02-22 18:53 start run  9150
      hold 'til  2017-02-23 10:00   end run  9162
2016-05-1
      ramp 'til  2017-02-23 18:00 start run  9165
      hold 'til  2017-02-26 16:55   end run  9211

Solenoid - LH2 (H25)
2017-02-2        2017-09-27 10:00
      ramp 'til  2017-09-27 13:50 start run  9749
      hold 'til  2017-09-28 16:16   end run  9771

Flip - LH2
2017-02-3       2017-09-29 10:00
      ramp 'til  2017-09-29 17:30 start run  9780
      hold 'til  2017-10-02 10:25   end run  9821

Solenoid - LH2
2017-02-6
SOL02-6          2017-10-07 10:00
      ramp 'til  2017-10-07 13:42 start run  9883
      hold 'til  2017-10-09 10:00   end run  9915

Flip - LH2 empty
2017-02-3       2017-11-14 13:20
      ramp 'til  2017-11-15 15:48 start run 10108
      hold 'til  2017-11-16 10:30   end run 10123

Solenoid - LH2 empty
2017-02-2       2017-11-23 08:00
      ramp 'til  2017-11-23 16:22 start run 10227
      hold 'til  2017-11-24 09:42   end run 10242
2017-02-6
      ramp 'til  2017-11-24 14:59 start run 10243
      hold 'til  2017-11-26 09:10   end run 10275
#5

Updated by Nebrensky, Henry 9 months ago

Pulled some stuff from the Archiver. Probably the colour scheme is wrong.

Not sure why the field changes independently of the current, e.g. see the beginning of CoolChan-SSU-2017-02-2_A.png
I've done some plots that include the Match coil currents, CoolChan-SSU-2017-02-2_E.png , and also SSD, CoolChan-SSU-2017-02-2_C.png , and it doesn't look to be down to mislabelling.

#8

Updated by Nebrensky, Henry 9 months ago

Also, the FC ramping up can be seen to have a small effect in CoolChan-SSU-2017-02-2_G.png .

Looking at CoolChan-SSU-2017-02-6_D.png the field in SSU is between 3.0348 and 3.0351 T over the entire cooling channel setting, i.e. stable to better than 0.01%.

Looking at CoolChan-SSU-2017-02-2_D.png it looks like the current in SSD is noisier.

#10

Updated by Nebrensky, Henry 9 months ago

  • % Done changed from 0 to 100
  • Status changed from Open to Closed

miceecserv1 is now shut down, and PPD's Archiver is hibernating.

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