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    IHEP MCBRD Project weekly meeting

    → Europe/Zurich
    Progress Report 1.17 (1).pdf
    Progress Report 1.17 (1).pptx
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    Week 03 - MCBRD IHEP Follow up meeting

    Presents : Yingzhe (IHEP), A Foussat , G. Kirby (CERN)

    Excused: Xu.G, , H.Felice, E Todesco

    Minutes meeting and actions item list :

    • Status of coils training test:  
      • IHEP has provided the information of the thermal conditions during training of the CB04 and CB06 apertures test. The various temperatures variations during tests shown some detraining which can occur in the next Magnet test. As mentioned by CERN, it will be beneficial to introduce a thermal cycle on the apertures at the end of the training to check the coil performance wrt detraining.
      • The CB04 , CB06 will be assembled in Magnet MCBRD02 by 01st Feb and tested from 7th Feb.  
      • CB05, CB07 training tests will start this week.
    • Development actions:
      • IHEP has presented a development of Quadrupole 0.5 m model for another project. The dimensions of formers and grooves, wires differ from the HL CCTs and the wet winding process performed at RT with glass filled resign is also a new manufacture variant. The dimensional information of resin channel, tape thickness are missing
      • AF mentioned that it is important that the next trials performed on short models are focusing on the dry winding and VPI full process as qualified earlier at CERN and by WST during a recovery plan to be agreed.
      • The time span between appliance of CTD 101 K resin during wet winding and the start of VPI test is 10 days. There is no information yet on the viscosity state of resin at this start of each stage. CERN mentioned that the record of the T. P profiles during the coil production are required to trace history of manufacture process. CERN P,t VPI cycle was shared and the early outgassing cycle at 100 degc was discussed. 

    Actions items:

    • IHEP to check the T, P traces of coil production in manufacture files.
    • IHEP to provide dimensions information on last 0.5 m model quadrupole
    • IHEP to discuss the recovery development and QC tests with CERN
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