Linac4 - PSB BI Line Outstanding Issues

Open Issues:

Date Name Action Results
  JB Scraper requirements for BI.DIS  
  TF, BG Study possibility of fewer PSB.BS power supplies PSB_H-_BS_fall_time_variations
  WW Information gathering on existing stripping systems ongoing
  BG Specification of allowed ripple BI.DIS PFN system  
  BG, GB Optics Matching at Injection point Still ongoing
  BG Possibility of vertical painting  
  GB Collimation of injected beam before BI.DIS ongoing but low priority
01/03/2010 BG, CB Failure cases for SMV and DIS, provide input on impact parameters and angles. Also investigate utility of DIS scrapers. Tracking of beam in case of BI.DIS failure  
01/03/2010 BG,WW,EC,BM  Prepare a specification for the DIS triggering and interlocking for distribution.
22/03/2010 BG, WW KSW Specification  
22/03/2010 ME, GB Beam size at the BI.DIS and BI.SMV for the tuning range other then D = -1.4 ± 0.4  
       

Closed Issues:

  Name Action Results
  KH Beam offset at BI.DIS 5.2mm baseline solution, as in TDR
  WW, JB, TF, LS cost / time estimate backwards compatible system estimates
  BG Fall time specification KSW Presentation
  FG duration or elimination of the head and tail Timing estimates
  JB, TF, WW The LINAC4 Work Breakdown Structure (WBS) workunits.xls
    Baseline design is for 2 Hz booster operation? A 900ms repetition rate for PSB operation has been approved by the project management
    Investigate the possibility of inversing BS1 and KSW1L1 position as well as BS4 and H0 dump. Simulation of several proposals. proposal of moving KSW1L1 to period 16.
  KH, BM Beam Instrumentation requirements in BI region  BI requirements for injection region have been added to the list of requests. A specification of the detailed requirements still needs to be written.
  WW Detailed layout of Injection Region PSBLayout
  GB, WW, TZ Add a Steering magnet before BI.DIS WW has informed Thomas Zickler
  WW Foil Heating Simulations CNGS_2μm foil, CNGS_5μm foil, CNGS_2μm foil_4_pulses
  WW Physical Apertures of equipment Table of BT equipment
  RC Head and Tail dump activation BID Head Dump activation
  JB, MH Cost estimates for extracting Head Pulse 4th SMV magnet cost estimate
  WW Reduction of BI.SMV aperture SMVaperture
  BG, WW Injection Region Instrumentation BG and WW will be invited to dedicated meeting to present available space and discuss requirements
       

 

WW