Multi-Turn Extraction

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Minutes of the 55th MTE meeting held on Thursday March 29th 2012

Present :

S. Damjanovic, M. Hourican, S. Gilardoni, M. Giovannozzi, C. Hernalsteens, J.-M. Lacroix, S. Mataguez

Excused :

J. Borburgh, R. Brown


Main items

Conclusions and actions from the meeting
  1. Sanja checked that increasing the length of the shielding wall built in January 2010 might be useful to provide a better shielding to the Linac 3 area. A check of the feasible increase will be made (Action: S. Mataguez, J.-M. Lacroix).

  2. The shielding blocks will be installed on a simple table to avoid conflicts with the bus bars. The design of such a table should be started (Action: J.-M. Lacroix).

  3. The energy deposition in the vacuum chamber of MMU15 should be considered as input to decide whether cooling is needed (Action: MG to contact D. Bodart).

  4. The proposed cooling system for the dummy septum blade should be verified to be really radiation hard (Action: ABT).

  5. The option of having large size quick connections for the flanges should be checked as this would minimise radiation given during interventions (Action: ABT).

  6. The space required for RF by-pass should be checked (Action: ABT).

  7. It is agreed that the two motors moving the dummy septum blade will be independent to allow for position and angle tuning.

  8. The optimisation of the thickness of the upstream and downstream shielding walls should be studied. In principle the tank length could be around 450 mm, i.e., 150 mm less that what was assumed in earlier simulations. The available 150 mm should be considered to be available either to increase the thickness of the downstream shielding wall, or to add an upstream shielding wall (currently not included at all),  or to provide some play to ease the activities in case of need (e.g., connecting/disconnecting the flanges) (Action: GS-SE).

  9. Simulations with the current simplified set-up, but with variable angle of the septum blade should be performed to establish how to align the dummy septum blade during operation and to find the best location of a monitor to be used for optimisation of the running conditions (Action: GS-SE).

  10. Details for the tracking of particles have been discussed and a set of input file will be prepared (Action: GS-SE and ABP).

 

   
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