h 14:00 CEST

Calling instructions:

Title:          Squeezer installation meeting
Description:
Community:      Virgo - LSC
Password:       virgo210
  Meeting type: Open Meeting (Round Table)
  Meeting Access Information:
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        Mobile App :  Meeting ID: 764 4380   or  Link:
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Minutes by Jean-Pierre Zendri

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AGENDA

MINUTES

1. The list of the tasks required to integrate the AEI squeezer on AdV has been discussed. The list is presented below.
2. For each task the name of one person has been assigned. This person is appointed to:
   

   • Start thinking about the technical solutions of the task.
   • Collect all the questions to be asked at the Hannover group during the first joint meeting  of 21 February.

3. A team of expert persons is commisoned to write within  the next  2 weeks  a summary of the backscattering calculation.

WPS

Squeezer preparation at AEI (next meeting)

Squeezer assembly
Squeezer testing
Preparation for shipment
Virgo personnel training

Backscattering calculation (Livia Conti)

• Backscattering as a function of AdV configuration (Antonino Chiummo)
  
• Total number of Faraday required
  
• Number of in vacuum Faraday

Optics

O.1 Layout of modifications to detection bench (Romain Gouaty)

• Optical layout: impact on present DET benches
• Faraday(s) on SDB1
• Shutter on SDB1
• Photodiode selection on SDB2 and RF output for the Coherent Control
• Installation of the high QE  photodiodes (check for power!)
• Quadrant photodiode (on SDB2 ?) selection for auto-alignment
• Additional wires and vacuum feedthrough (Faraday, shutter, CC photodiode, QF)
• Additional in vacuum optics
• Superpolishing and coating (Faraday and optical window)

O.2 Layout of external squeezer table (Martina DeLaurentis)

• Optical design of the injection
• Design of the holders (beam high TBD)
• Additional Wiring (Faraday, auto-alignment)
• Bench dimension specifications
• Optics diameter selection

O.3 Design  construction and test of the in vacuum faraday(s) (Eric Genin)

O.4 In air Faraday(s) isolators (Eric Genin)

O.5 Design and construction of the matching telescope for the squeezed beam (RomainBonnard)

O.6 Main squeezer PLL, set up of the fiber  (ask details to AEI)

O.7 Autoalignment of squeezer beam (hardware and control system) (Fiodor Sorrentino)

Electronics

E.1 Integration of AEI electronics (Flavio Nocera)

E.2 Integration of squeezer control system and data in the Virgo framework (L.Rolland, JP Zendri)

Mechanics/infrastructure/Installation

M.1 Integration in the DET lab (Romain Gouaty)

M.2 Seismic isolation of the squeezer bench  (Alessandro Bertolini)

M.3 Acoustic isolation (Franco Carbognani)

M.4 Clean-air system to be integrated in the acoustic isolation (Franco Carbognani) 

M.5 Vacuum viewport for squeezing beam injection  (Antonino Chiummo)

M.6 Preliminary test/operation of the AEI squeezer in Cascina  (Eric Genin)

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