Meeting 2025_10_17

Jan, William, Chiara, Daniele, Stephane

TS2 access:

• Daniele made an access this morning and had an overview:

• Dust is accumulating à clean up to foresee for next YETS (mirrors, filters, etc…)
• Nothing to do so far
• Nothing urgent to buy à LS3 together with new BSRT hardware

• BSRTMB:

• Access to take a few measurment for a cover for HSE to be happy 😊 (William/Stephane)
• Replacement of target support and target (Stephane/Daniele)

YETS access:

• BSRT:

• Clean up optical elements (Daniele/Stephane)

• BSRTMB

• Install new cover (William)
• Visite HSE (C.Gaignant and O.Tyson) to finalise the Safety Assessment ! (to be launched by Stephane or William?)

• New BSR optical lines

• Visite with HSE (?) / SCE (C.Biot) to discuss on site about:  Hutch and optical lines, etc…  (to be launched by Stephane or William?)
• January 26  
• Discussion with BGI to make sure of definitive use of carrotage (all)
• Christelle confirmed to Chiara the 2m height aperture allocation !! Since Germana said if HSE is OK….
• BSRA
• David confirmed no BSRA specific actions (except standard maintenance/check at restart)

ECR new BSR:

• Priority 1 is vacuum part

• BSRTR: Actual design (flange reduced to 150mm) still needs to be adapted for integration à vacuum chamber itself à Ben + Stephane next week

• List of requests/needs

• • Compressed air
  • BTV electronics for BSRTR CTRL à cabling on US45 to optimize available electronics (Stephane to update DIC)
  • Rack request with all services (power, network, etc…) à inside or outside hutch?
  • Layout hutch

Test jitter in position HV design push-pull

See slide (Stephane) --> jitter is max +/-1mm over 16m