Straw bi-weekly meeting

Tuesday 20 Jan 2026, 09:00 → 10:00 Europe/Zurich

20/1-004 (CERN)

Hans Danielsson (CERN)

To be followed up:

• short prototype - validation of HV and FE boards - results of tests to be presented in 2 weeks
• long prototype - wait for the production of remaining parts at CERN
• long prototype - HV board design - progress
• measure alignment of spacers in the intermediate prototype
• documentation of procedures and results

09:00 → 10:00 Updates

STUDY LONG STRAW PROTOTYPE 19_01_26.pdf

STUDY LONG STRAW PROTOTYPE 19_01_26.pptx

Short prototype:

Michal:

Zdenko:

Peter:

• running with no overpressure with open end (HV board removed)
• need a bigger bottle
  
  

Vincent:

• new directory "New STRAW prototype" to store all related drawings
• We should review and sign drawings related to the short prototype (Francois, Tonio, Michal)

Intermediate prototype:

Tonio&François:

Michal:

• waiting for HV connectivity parts

Long 124-straw prototype:

Vincent:

• new directory "New STRAW prototype" to store all related drawings
• we can review and sign the related drawings
• Thickness of the "second" board (after HV board) - same as HV board (1.9mm)
• designed a "holder" for the HV connectors to be installed using the holes for the handle
• need of an EDMS link to a gluing procedure
• prepared a list of all parts for the prototype, the list is in cernbox directory
  
  

Peter: 

Michal:

• ordered end-caps for gluing

Zuzana:

• Minitubes have additional 500 crimp tubes in stock, price to be negotiated
  
  

Hans:

• straw fixation plates are in production at CERN, flanges are done
• Temur asked about the length of straws - 2.4m
• glue ordered, to arrive in March