JETI40@HH Meeting

Friday 7 Feb 2025, 08:30 → 10:05 Europe/Berlin

LUXE laser meeting — 7/Feb/2025

Maik
- Looking at improving layout.
  -> Change position of one table.
       o E.g. (a) 90deg (wider) or (b) 180deg (longer).
       o Where (a) is better from a laser point of view.
       o (b) is better from a space point of view, both for HERA-West and Osdorfer Born.
       o Where does the compression chamber go ?
       o Need to explore if we can re-route light to best position chamber.
       o Try to get the layout fixed so that the HERA-West and Osdorfer Born layout is the same.
       o Need dimensions of extra pump laser. 
          -> Maik to ask Amplitude.
          -> Maik to talk to Jena about possible re-routing.
          -> Maik to ask for component list for Karsten and with path can create a CAD drawing.
       o And vacuum chamber.
       -> Karsten to provide sketch of HERA-West room.
       -> Louis to provide sketch of Osdorfer Born room.

- Need a crane for moving the compressor.  Could be mobile.
  -> Karsten needs to know the weight.

- Air-conditioning is about 50 kEUR for the laser.
  -> Needs a tender so would take at least 4 - 6 months.
  -> Clean room (16 x 7 cm^2) on the top floor in HERA-West could save 50 kEUR.  Is a Plan B.
      -> Not much to do to get it ready for use — just a bit of clean up.
      -> Maik to ask Amplitude about stability and whether such a room would affect things.
      -> Temperature stability ?  Ask Amplitude,  (Could be 50kEUR more for 1 C tolerance for the upper room).

- Timeline ?
   -> Need to talk to Matt Zepf.
   -> Rumor from Jena side that they need clean room in April, and will want to remove the laser by this time.

- How much of an issue is storage. We probably will need to store the boxed laser for a few months if they really need to remove it before the summer.

- Laser and laser safety
  -> 20 kEUR  
  -> 1 month work.
  -> Needs to be in DACHS / need MEA.
  -> Appoint laser safety team.
      o General safety: Karsten
      o LSO: needed.  Joern (ALPS) or Ralph ?

- Transport 
   -> Lorry needs to be emptied by a crane and not from the side.  Empty from above.

- Radiation issues
  -> LSO will need to worry about it.

1 Input from Maik

Speaker: Maik Dinter (FTX (AST))

JETI#180.pdf

JETI#90.pdf

JETI#original.pdf

2 Input from Karsten

Speaker: Karsten Gadow (BELLE (BELLE Gruppe))

3 Input from Grigory

Speaker: Grigory Yakopov (CMS (CMS-Experiment))

4 Input from Louis

Speaker: Louis Helary (DESY - FTX)

5 Input from Ruth

Speaker: Ruth Magdalena Jacobs (FHR (Bereichsreferent FH))

6 Input from Matthew

Speaker: Matthew Wing (FTX (Technol. zukuenft. Teilchenph. Experim.))