Laser Safety Program at ELI-NP Radu Secareanu for ELI-NP TEAM
Contents Laser sources HPLS Layout Safety Work Packages breakdown Outlook
Laser sources High power laser system Optics Laboratory Lasers Gamma System Lasers HPLS room Technical corridors AVESTA CPA room Lasers for gamma beam Experimental areas General lasers experiments room
HPLS layout
HPLS layout CPA 1 - TiSa regen amplifier XPW for contrast and spectrum enhancement OPCPA for contrast enhancement CPA 2 for energy and energy stability TiSa multipass amplifiers 100 TW @10Hz 100TW 1PW CPA 2 for energy and energy stability TiSa multipass amplifiers 1PW @1Hz CPA 2 for energy and energy stability TiSa multipass amplifiers 10 PW @ 1 shot/min 10PW
Lasers in HPLS OSCILLATOR JADE 2 SAGA GAIA ATLAS AMP1 AMP2 AMP3 Wavelength [nm] 800 and 1064 527 532 532 527 800 800 800 Repetition rate 80 MHz 1000 Hz 10 Hz 1 Hz 1/60 Hz 10 Hz 1 Hz 1/60 Hz Pulse duration 6 fs 160 ns 4-8 ns 7-10 ns 30 ns 600 or 900 ps 600 or 900 ps 900 ps Energy 6 nj 25 mj 1,6 J 14 J 100 J 4,7 J 38 J 314 J Beam diameter 2 mm 3 mm 15 mm 23 mm 45 mm 70 mm 146 mm 550 mm Crystal TiSa Nd:YLF Nd:YAG Nd:YAG YLF4 TiSa TiSa TiSa
Safety Work Packages Laser safety culture Risk analysis Operation modes Interlock system Safety materials Personal precautions
Laser safety culture LSO and Laser Safety Council Laser Safety Training LSO for HPLS was appointed The internal rules of the Laser Safety Council are being written Training for ELI-NP HPLS team is provided Training for ELI-NP HPLS new employees is provided Training for ELI-NP Optics Lab users is provided Laser Safety Rules Laser Safety rules included in the Optics Lab access procedure
Laser safety culture Laser Safety Rules
Laser safety culture Laser Safety Rules
Risk analysis Risk analysis for HPLS The risk analysis for HPLS will be provided by THALES Depending on the operation modes selected, ELI-NP will have to do additional risk analysis Risk analysis for LBTS Risk analysis for LBTS system has to be done Risk analysis for Experimental area Risk analysis for Experimental area has to be done
Operation modes Operation mode Description Laser Risks Idle - No class IV laser enabled; - Laser room doors are unlocked; - Laser room curtain is not part of the interlock loop and can be open. NO Operation modes of HPLS Alignment - All class IV laser can be enabled; - Laser room curtain is interlocked and closed; - No search needed - Laser room doors are unlocked. YES Run - All class IV lasers can be enabled; - Laser room curtain is interlocked and closed; - Search is needed; - Laser room doors are unlocked, but interlocked. YES
Interlock system Interlock for HPLS HPLS interlock boxes are connected to the shutter and power supplies of the pump-lasers; Emergency buttons; Search buttons; Laser room curtain switches; Operation mode selector; Light warning Interlock for Optics Lab Magnetic switches for the doors with restricted access; Light warning; Emergency button Interlock for Experimental area Interlock system for Experimental area is under design
Safety materials Laser safety curtains Beam dumps Laser Safety Curtain for HPLS room was installed; Laser Safety Curtain for HPLS entrance and for Optics Lab was installed; Beam Dump materials (Spectralon, Teflon and Permaflex) for HPLS are tested; Beam Dump 3D design was done; Fast shutters Safety panels Fast shutters for HPLS were identified and are in acquisition; Fast shutters will be used for each pump laser and also for the seed; Extensible Laser Safety Panels for the technical corridors doors Extensible Laser Safety Panels for Optics Laboratory
Safety materials
Safety materials
Personal precautions Personal goggles Shared goggles IR Viewer ND Filters
Outlook Laser Safety LSO for HPLS Training for users and employees Access procedure and laser safety rules Goggles for employees and users Safety materials for Optics Lab Safety materials for HPLS Future actions LSO for ELI-NP Laser Safety Council Interlock for Optics Lab Online Laser Safety Training