Electron Beamlines Safety Workshop at ELI Beamlines April 2016

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Presentation transcript:

Electron Beamlines Safety Workshop at ELI Beamlines 11-12 April 2016 Nikhil, Gabriele, Leonel, Roberto, Anna, Alberto Safety Workshop at ELI Beamlines 11-12 April 2016

E2 - Betatron (up to 1 GeV, monochromatic or exponential spectrum) E5 - HELL (up to 10 GeV, monochromatic or flat spectrum) E5 - LUX (up to 1.2 GeV, monochromatic spectrum)

Dump Design Strategy GOAL MODULAR MATERIALS < 1 mSv/year outside experimental halls Compact, light-weight and low cost MODULAR Dump built from "bricks" of shielding materials Add/remove "bricks" if experimental parameters change MATERIALS Restrict EM cascade inside cast iron Shower absorption in concrete Moderate back scattered neutrons in polyethylene (borated if needed)

E2 - Betatron

E2 - Betatron Monochromatic (1 GeV) Exponential (40 MeV temperature) Additional magnets placed external to the experimental chamber to direct the beam on to the dump Cast iron core of the dump is 2m x 1m x 0.6m (bulky?) Exponential (40 MeV temperature) Affected by the internal magnet which disperses the beam Long concrete wall as shielding 1 GeV monochromatic DOSE RATE (mSv/year) 1 mSv/y Exponential

E5 – HELL and LUX

E5 - LUX (Laser-driven Undulator X-ray) BEAM DUMP COLLIMATOR Activation due to 500 MeV electrons on a concrete beam dump (1.2m x 1.8m x 2m) Irradiation schedule (12 times per year) 5 consecutive days with 20 hours of operation per day 25 consecutive days with 2 hours of operation per day

E5 – HELL (High-energy Electron-acceleration by Laser) User Station Spectrometer 10 GeV beam Spectrum: 0-500 MeV flat Irradiation of samples Up to 10 Hz Low noise Low radiation damage Minimize backscattering No dedicated dump Spectrum: 0-3 GeV flat 1 T x 60 cm magnetic field Electron accelerator characterization Variable charge Variable spectrum Muon production Spectrum: 10 GeV Increase of beam energy with time Goals 10 GeV, 50 GeV Variable charge Variable spectrum Muon production Biolab downstream

E5 – HELL (High-energy Electron-acceleration by Laser) User Station Spectrometer 10 GeV beam Spectrum: 0-500 MeV flat Irradiation of samples Up to 10 Hz Low noise Low radiation damage Minimize backscattering No dedicated dump Spectrum: 0-3 GeV flat 1 T x 60 cm magnetic field Electron accelerator characterization Variable charge Variable spectrum Muon production Spectrum: 10 GeV Increase of beam energy with time Goals 10 GeV, 50 GeV Variable charge Variable spectrum Muon production Biolab downstream

E5 – HELL (High-energy Electron-acceleration by Laser) User Station Spectrometer 10 GeV beam Spectrum: 0-500 MeV flat Irradiation of samples Up to 10 Hz Low noise Low radiation damage Minimize backscattering No dedicated dump Spectrum: 0-3 GeV flat 1 T x 60 cm magnetic field Electron accelerator characterization Variable charge Variable spectrum Muon production Spectrum: 10 GeV Increase of beam energy with time Goals 10 GeV, 50 GeV Variable charge Variable spectrum Muon production Biolab downstream

E5 – HELL (High-energy Electron-acceleration by Laser) User Station Spectrometer 10 GeV beam Spectrum: 0-500 MeV flat Irradiation of samples Up to 10 Hz Low noise Low radiation damage Minimize backscattering No dedicated dump Spectrum: 0-3 GeV flat 1 T x 60 cm magnetic field Electron accelerator characterization Variable charge Variable spectrum Muon production Spectrum: 10 GeV Increase of beam energy with time Goals 10 GeV, 50 GeV Variable charge Variable spectrum Muon production Biolab downstream

Thank you!