Update on the Laser Beam Line Valentin Fedosseev AWAKE Collaboration meeting CERN, 12.03.2015

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

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

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

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

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

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

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

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

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

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

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

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 2 + 6 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

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

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

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

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