Participants : Y. Dutheil, S. Evrard, F. Galleazi, D. Gamba, E. Granados, A. Harrison, A. Martens, A. Musumarra, M. Pellegriti, G. Ron, O. Ruimi.

• Ophir introduction
  • Jointly supervised by Guy and Dmitry  
  • Planning a plasma window for gamma
    • Stabilised plasma which the photon beam will be able to cross 

    • Will hold the air from atmospheric pressure 

    • Started working on the effect of photon beam 

  • Working on a prototype with first results in a few months 
  • Very little interactions exist between the photon beam and the plasma 
• Frederic 
  • Report on the experience from the TI18 visit 
  • Need to meet and review previous report to our experience 
• Maria and Agatino  
  • Presenting a short overview of their expertise with applications at nTOF 
  • 2 technologies specifically proposed for GF 
    • Fast scintillator (+fast PM)  
    • Si-Junction with fast electronics 
• PBC workshop next week with 2 talks scheduled 
  • Edu 
    • General talk  
    • Recent laser resuls from Orsay and next steps for the amplifier 
  • Peter Kruyt 
    • Very good status of the tools and working on simulations 
    • Cooling rates will be presented and discussed 
• Status of the Pillar 
  • Edu visited the workshop and the pillar is being built 
• Laser amplifier  
  • Tender is being redacted on the CERN side 
  • A new addendum will be needed for the laser amplifier 
  • Will need to discuss between CERN and Orsay about how to proceed with the test since the space in Orsay is very limited which may require the full power tests at CERN