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Created by Main.MirkoPojer on 2007-06-29 - 20:33

Powering Tests Sector 7-8 _ 29/06/2007

D2-Q4 study in the afternoon

The following cycle has been executed on D2-Q4, to study stability at minimum liquid helium level in DFBMA:

  • with nominal liquil helium level inside the DFBMA, RD2.L8 and RQ4.L8B1/B2 to I_min_op
  • lower liquid helium level to 31%
  • ramp of RD2.L8 to 6kA with 18 A/s ramp rate; once at nominal, ramp of RQ4.L8B1/B2 to 3610 A with 10A/s ramp rate
  • plateau of 30 min, then ramp RQ4.L8B1/B2 to I_min_op (RD2.L8 always at nominal)
  • wait 2 min and ramp RQ4.L8B2 to 3610A at 10 A/s and RQ4.L8B1 to 1900A at 10A/s
  • plateau of 20 min
  • power permit removed on all PCs and SPA initiated withou quench.

Test result: successful!

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Created by Main.AntonioVergara on 2007-06-29 - 17:16

Powering Tests Sector 7-8 - 29.06.2007

Microsoft Excel Spreadsheet PlanningW27.xls:


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Created by Main.MatteoSolfaroli on 2007-06-29 - 16:33

Activities foreseen in sector 45 from Monday 2nd July up to the cooldown

Activities in sector 45 from Monday 2nd July

  • CRYO
    • Purging on Friday 29th evening and all the week end long;
    • Refilling on Monday 2nd July;
  • ElQA-TP4B and Monitoring installation
    • On Tuesday 3th July, once 6Bar conditions are reached, ElQA will be repeated (only on RB) maybe from 8am to 1pm. RESTRICTED ACCESS.
  • CRYO-instrumentation
    • Coherence test of all the valves in ARC and LSS (Thursday 28th and Friday 29th);
    • Commissioning;
    • Initialization of the CV910 valves on Tuesday 26th and Wednesday 27th;
  • TS/EL intervention
    • Changing of the connectors of a BPM (LSS4R);
    • Connection check of the instrumentation cables of BCT;
  • TIM camera
    • General check on Monday 2nd July;
    • Run from P4 to P5, during the Cryo Patrouille the morning of the start of the cool-down;
  • Safety Inspection
    • Monday 2nd July at 2pm;
  • AT/ACR Patrouille
    • A Patrouille will be carried out on Wednesday 4th July just before the cooldown.
  • AT/VAC
    • Short access to LSS4R and LSS5L on Monday 2nd July.
  • AB/BI
    • LSS4R short intervention on the BI (capeau).


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Topic revision: r1 - 2007-06-01 - JacekSzkutnik
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