1. Update on the Laser Beam Line
Valentin Fedosseev
AWAKE Collaboration meeting CERN,

2. Laser lines in AWAKE Laser beam line to plasma cell
Diagnostic beam line (“virtual plasma”)
Laser beam line to electron gun
12/03/2015

3. Laser line work package
Arrangement of the laser lab at CERN
Beam transfer optics and mechanics
To plasma cell
To photoinjector
Laser beam monitoring and control
Implementation of laser safety requirements
In conjunction with CERN access system
Links for remote control of laser
12/03/2015

4. Civil engineering works
Laser core completed
Trench in TT41: to be painted and covered
Laser room painted
12/03/2015

5. Laser beam to plasma cell
Functional scheme of the laser beam line to the plasma cell indicating the mirrors (blue) and their surrounding vacuum tanks,
the laser safety shutters (green) and laser beam dumps (violet).
12/03/2015

6. Vacuum laser line Design of general layout has been approved
12/03/2015

7. Vacuum laser line Work on detailed drawing is close to completion
Procurement is started
12/03/2015

8. Cooling and ventilation
Requirements for laser cooling
Water pressure: 2 – 8 bars
Water temperature: 18°C - 20°C
Water supplies available in the tunnel
Demineralized water
Water pressure: up to 16 bars
Water temperature: 28°C
Chilled water
Water pressure: up to 16 bars
Water temperature: 6°C
Solution proposed by CV
To install a heat exchanger with a closed water circuit between laser and chilled water with a water pump to fulfil laser cooling requirements
12/03/2015

9. Cooling and ventilation
TSG40 ventilation system
EN/CV AWAKE Project
Supply duct
H14 filter
Return duct
Extraction duct
Smoke damper
Work on installation of air ducts starts on this week
12/03/2015

10. Laser Room Integration
Arrangement of laser components on optical tables has been proposed by Amplitude
Discussions on possibility to reduce the size of pulse compressor chamber took place (MPP, Amplitude and CERN) - > Diameter 120 cm is agreed.
Integration is on-going:
Ventilation
Supporting structures for hoist, shelves and cables
Racks and cable trays
Services
12/03/2015

11. Laser integration
Layout proposed by Amplitude and its 1st integration plan
12/03/2015

12. Laser integration Latest version of laser room integration
Racks for laser control
and RF equipment
Latest version of laser room integration
Proposal for hoist rail support
12/03/2015

13. Cabling requests Motorization RL1 RT1 RL3 PP1 LLRF LS1 LS2 RT2 LBD1
Purpose
Begin
End
N wires
Cable type
Mirrors proton line
TSG40 RL2
TT41 RL2
14 x 2
NG28
Mirrors electron line
TCV4 RL3
Laser shutter 1
TT41 LS1
6 x x 2
NE12 x 2
Laser shutter 2
TSG40 RL1
TT41 LS2
6 x 2
NE12
Laser beam dumps 1, 2 BS
12/03/2015

14. Cabling requests Ethernet outlets, PoE and RS232 cables RL1 RT1 RL3
LLRF
RT2
RJ45 x4
RJ45 x20
PP1
PP2
Purpose socket
Position
Type
N sockets
Laser control
TSG40 RL1 TN 2
Mirror controls 6
Beam diagnostics
Timing
TSG40 RT2 4
TT41 PP1
TCV4 RL3
TCC4 PP2
General
TSG40
GPN
WiFi access point
in Laser Room
Purpose cable
Begin
End
N cables
Cable type
PoE Cameras
TSG40 RL1
TT41 PP1
10 x PoE LAN Rj45
VA8C
Filter wheels
8 x RS232 Sub-D 9
MCA8
12/03/2015

15. Access to laser areas Sectorization proposal under discussion Always
Access to sector 7 is restricted to laser users
During laser beam alignment
Access to sectors 3 and 6 is restricted to laser users
12/03/2015

16. Time schedule
Installation of ventilation ducts and water pipes: March-April 2015
Installation of doors : March 2015
Installation of supporting structures: April-May 2015
Cable tray: May 2015
Electrical, control, Ethernet cables: June 2015
Fire detection and alarms: June-July 2015
CV hardware commissioning. Clean room ready: July-August 2015
Laser tables: September 2015
Vacuum line installation: September-November 2015
Access control: October-November 2015
Compressor installation: November 2015
Laser installation: December 2015 – February 2016
Beam transport optics: January-February 2016
Laser HWC: March-June 2016
12/03/2015

17. Acknowledgments EN-STI-LP: Christoph Hessler, Misha Martyanov
EN-MME : Nicolas Chritin, Cedric Delory
TS-VSC: Jan Hansen, Friederike Salveter
EN-MEF: Ans Pardons, Frederic Galleazzi, Vincent Clerc, Marzia Bernardini, Michel Arnaud, Patrick Vincent
EN-CV: Michele Battistin, Frederic Teixeira
GS-SE: Richard Morton, Alex Selles
EN-HE: Jean-Louis Grenard
GS-ASE: Vitor Martins De Sousa Dos Rios
12/03/2015