1. The New Radiation test facility at CERN: CHARM December 8 th 2014 CERN R2E project ESA/CERN meeting - December 8 th 2014 The new radiation tests facility at CERN: CHARM J. Mekki on behalf of the CHARM facility team www.cern.ch/r2e, www.cern.ch/charm

2. The New Radiation test facility at CERN: CHARM December 8 th 2014 2 CHARM Cern High Energy AcceleRator Mixed Field/Facility We’d also Other Good Options, (Cern High Energy Radiation Facility) … But CHER (French = expensive) New CERN Mixed-Facility

3. The New Radiation test facility at CERN: CHARM December 8 th 2014 3 Size Matters? OR EVEN TEST THIS: HERE (W)HOW ??? TEST COMPONENTS/CARDS: 5 cm beam diameter

4. The New Radiation test facility at CERN: CHARM December 8 th 2014 24 GeV/c protons 4 Approach: Test Positions 4x40 cm movable shielding

5. The New Radiation test facility at CERN: CHARM December 8 th 2014 5 Different thermal behavior Different high energy (HE) contributions Impact on intermediate energies Test positions: -> Spectra

6. The New Radiation test facility at CERN: CHARM December 8 th 2014 6 CHARM HEH Flux Range

7. The New Radiation test facility at CERN: CHARM December 8 th 2014 7 Varying Radiation Field

8. The New Radiation test facility at CERN: CHARM December 8 th 2014 8 Varying Radiation Field Lateral Positions Longitudin. D+H Full racks, crates, set of cards, components HEH: 10 9 cm -2 h -1 – 5×10 9 cm -2 h -1, TID: 500mGyh -1 – 5Gyh -1 10 8 cm -2 h -1 – 8×10 8 cm -2 h -1,TID: 80 mGyh -1 – 200 mGyh -1 with shielding HEH: 5×10 9 cm -2 h -1 – 1×10 10 cm -2 h -1 TID: 1Gyh -1 – 10 Gyh -1 Beam Position target in: HEH: >10 11 cm -2 h -1 TID: >10 Gyh -1 target out: HEH: >10 12 cm -2 h -1 TID: >1 kGyh -1

9. The New Radiation test facility at CERN: CHARM December 8 th 2014 9 Varying Radiation Field Lateral Positions Longitudin. D+H Beam Position target in: HEH: > 8×10 11 cm -2 h -1 TID: >800 Gyh -1 target out: HEH: >10 12 cm -2 h -1 TID: >1 kGyh -1 Factor 5 difference Full racks, crates, set of cards, components HEH: 5×10 8 cm -2 h -1 – 1×10 9 cm -2 h -1, TID: 100 mGyh -1 – 1Gyh -1 HEH: 1×10 9 cm -2 h -1 – 2×10 10 cm -2 h -1 TID: 1Gyh -1 – 20 Gyh -1

10. The New Radiation test facility at CERN: CHARM December 8 th 2014 10 Varying Radiation Field Lateral Positions Longitudin. D+H Large gradient Factor 20 Beam Position target in: HEH: > 8×10 11 cm -2 h -1 TID: >800 Gyh -1 target out: HEH: >10 12 cm -2 h -1 TID: >1 kGyh -1 Full racks, crates, set of cards, components HEH: 5×10 8 cm -2 h -1 – 1×10 9 cm -2 h -1, TID: 100 mGyh -1 – 1Gyh -1 HEH: 1×10 9 cm -2 h -1 – 2×10 10 cm -2 h -1 TID: 1Gyh -1 – 20 Gyh -1

11. The New Radiation test facility at CERN: CHARM December 8 th 2014 11 Varying Radiation Field Lateral Positions Longitudin. D+H Large increase Factor 80 Beam Position target in: HEH: > 8×10 11 cm -2 h -1 TID: >800 Gyh -1 target out: HEH: >10 12 cm -2 h -1 TID: >1 kGyh -1 Full racks, crates, set of cards, components HEH: 5×10 8 cm -2 h -1 – 1×10 9 cm -2 h -1, TID: 100 mGyh -1 – 1Gyh -1 HEH: 1×10 9 cm -2 h -1 – 2×10 10 cm -2 h -1 TID: 1Gyh -1 – 20 Gyh -1

12. The New Radiation test facility at CERN: CHARM December 8 th 2014 12 Varying Radiation Field Lateral Positions Longitudin. D+H Large increase Factor 80 Beam Position target in: HEH: > 8×10 11 cm -2 h -1 TID: >800 Gyh -1 target out: HEH: >10 12 cm -2 h -1 TID: >1 kGyh -1 Full racks, crates, set of cards, components HEH: 5×10 8 cm -2 h -1 – 1×10 9 cm -2 h -1, TID: 100 mGyh -1 – 1Gyh -1 5×10 7 cm -2 h -1 – 2×10 8 cm -2 h -1, TID: 50 mGyh -1 – 100 mGyh -1 with shielding HEH: 1×10 9 cm -2 h -1 – 2×10 10 cm -2 h -1 TID: 1Gyh -1 – 20 Gyh -1

13. The New Radiation test facility at CERN: CHARM December 8 th 2014 13 Varying Radiation Field Lateral Positions Longitudin. D+H Large increase Factor 80 Beam Position target in: HEH: > 8×10 11 cm -2 h -1 TID: >800 Gyh -1 target out: HEH: >10 12 cm -2 h -1 TID: >1 kGyh -1 Full racks, crates, set of cards, components HEH: 5×10 8 cm -2 h -1 – 1×10 9 cm -2 h -1, TID: 100 mGyh -1 – 1Gyh -1 5×10 7 cm -2 h -1 – 2×10 8 cm -2 h -1, TID: 50 mGyh -1 – 100 mGyh -1 HEH: 1×10 9 cm -2 h -1 – 2×10 10 cm -2 h -1 TID: 1Gyh -1 – 20 Gyh -1 Dose rate (rad/s)HEH flux (cm -2 /h) Min Value1.5×10 -3 5×10 7 Max value> 30> 10 12

14. The New Radiation test facility at CERN: CHARM December 8 th 2014 Beam-Line constantly monitored: beam intensity versus time beam profile Irradiation positions Based on the CERN Radiation monitoring system “RadMon” Online measurement of TID 1-MeV neutron equivalent fluence HEH and thermal neutron fluence Gradients/Spectra with benchmarked and calibrated FLUKA Calculations Additional detectors (e.g BLM) and passive dosimeters (e.g RadFETs, RPL …) Publishing: A dedicated monitoring tool will allow to (also from outside CERN): “Under development” visualize the radiation levels in real time archiving of levels for different runs Monitoring & Dosimetry

15. The New Radiation test facility at CERN: CHARM December 8 th 2014 15 First commissioning phase Facility configuration: Al holes target No shielding 24 GeV proton beam Difference Measurement to Simulation HEH fluence (%) -9 % -18 % -15 % -5 % -7 % Difference < 20%

16. The New Radiation test facility at CERN: CHARM December 8 th 2014 16 First commissioning phase 3 %4 % 12 % 22 % Facility configuration: Copper target No shielding 24 GeV proton beam Difference Measurement to Simulation HEH fluence (%) Difference < 25%

17. The New Radiation test facility at CERN: CHARM December 8 th 2014 17 First commissioning phase 7 %1 % -17 % -26 % Facility configuration: Copper target No shielding 24 GeV proton beam Difference Measurement to Simulation Dose/HEH fluence (%) Difference < 30%

18. The New Radiation test facility at CERN: CHARM December 8 th 2014 18 First commissioning phase 7 %1 % -17 % -26 % Facility configuration: Copper target No shielding 24 GeV proton beam Difference Measurement to Simulation Dose/HEH fluence (%) Difference < 30% Good agreement between Measurements And Simulations

19. The New Radiation test facility at CERN: CHARM December 8 th 2014 19 Representative Test Locations Accelerator Tunnels 90% of the particles ~ 50% of the high-energy hadron flux is above a few hundred MeV

20. The New Radiation test facility at CERN: CHARM December 8 th 2014 20 Atmospheric (10km) 90% of the particles Representative Test Locations

21. The New Radiation test facility at CERN: CHARM December 8 th 2014 21 ISS Orbit: 90% of the particles Representative Test Locations

22. The New Radiation test facility at CERN: CHARM December 8 th 2014 IRRAD proton facility PH/DT 24 GeV/c proton beam LHC experiments East Area Facilities 24 GeV/c proton beam CHARM R2E Project Technical local Connection to the radiation area Control room Dry run test 22

23. The New Radiation test facility at CERN: CHARM December 8 th 2014 23 Main Elements 24 GeV/c proton beam Purchase Order Launched – Exp. Jan15

24. The New Radiation test facility at CERN: CHARM December 8 th 2014 24 Facility Overview Technical Area Control room «Dry Run» Dry-Run: Patch Panel «IN» Dry-Run: Patch Panel «OUT» Test: Patch-Panel – Control Room Connection

25. The New Radiation test facility at CERN: CHARM December 8 th 2014 25 Various steps: 1 st to fill the cable holder chain with the cables required for the test (will be done outside the facility) Cable chain will be brought automatically inside the buffer zone (via a dedicated rail system on the ceiling) Equipment installation Target and Test Zone Access Corridor Storage Area (Buffer Zone) Rail for the cable holder chain Loading & Connection Area

26. The New Radiation test facility at CERN: CHARM December 8 th 2014 Target and Test Zone Access Corridor Storage Area (Buffer Zone) Rail for the cable holder chain Loading & Connection Area 26 Next Steps: Test-equipment to be transported to the loading area Bringing the cable chain from the buffer zone to the loading area (via rails) Performing the connection between patch panel and test equipment Equipment installation Patch panel Equipment to be tested

27. The New Radiation test facility at CERN: CHARM December 8 th 2014 27 Next Steps: After successful connection and respective verification: The conveyer will bring the equipment to the test position (semi-automatic) Last check of connections/system/monitoring -> BEAM ON Equipment installation Patch panel Target and Test Zone Access Corridor Storage Area (Buffer Zone) Rail for the cable holder chain Loading & Connection Area Equipment to be tested

28. The New Radiation test facility at CERN: CHARM December 8 th 2014 28 Contrary to other facilities: Test-Setup needs to be rad-tol 25-35 m of cables Large distances: 25-35 m of cables. designers need to integrate solutions allowing to measure short signals if required (e.g. short transient “few ns”, fast digital signals) But … representative radiation fields Numerous representative radiation fields Mixed-Particle-Energy & large volumes Direct beam exposure Large range of calibrated fluxes and dose ranges Large range of calibrated fluxes and dose ranges (covering accelerator, but also other applications) Facility Design Constraints

29. The New Radiation test facility at CERN: CHARM December 8 th 2014 Unique Unique radiation test facility representative test environments Various representative test environments Detailed calibration Detailed calibration through various monitoring systems and MC calculations ComponentSystem Component, Batch and System tests dose rates dimensions Range of dose rates (ELDRS up to high dose rates) and dimensions (~1x1x2m, 1.5t) mid-November 2014 Available since mid-November 2014 CHARM – In short 29

30. The New Radiation test facility at CERN: CHARM December 8 th 2014 30 Conclusions High-energies are of concern! (especially for destructive failures) Testing complex systems or many components can be important/useful Representative environments are an efficient test approach, likely not only for accelerators A new test facility is now available at CERN

31. The New Radiation test facility at CERN: CHARM December 8 th 2014 31 BACKUP

32. The New Radiation test facility at CERN: CHARM December 8 th 2014 32 Particle energy spectra: intervals of interest Thermal neutrons: n+ 10 B→ 7 Li+ 4 He Intermediate energy neutrons: low energy elastic/inelastic products Low energy charged hadrons: direct ionization (relevant for very sensitive technologies) Inelastic interactions: n+ 28 Si→ 25 Mg+ α → 28 Al+p → 27 Al+d → 24 Mg+n+ α → 26 Mg+ 3 He …

33. The New Radiation test facility at CERN: CHARM December 8 th 2014 33 Representative Test Locations Accelerator Shielded Areas 2 90% of the particles

34. The New Radiation test facility at CERN: CHARM December 8 th 2014 34 Atmospheric (200m) 90% of the particles Representative Test Locations

35. The New Radiation test facility at CERN: CHARM December 8 th 2014 35 Representative Test Locations Accelerator Shielded Areas 1 99% of the particles

36. The New Radiation test facility at CERN: CHARM December 8 th 2014 36 CHARM Cern High Energy AcceleRator Mixed Field/Facility New CERN Mixed-Facility CHARM part: 2.2kt iron, ~4.5kt concrete EN/MEF, EN/STI, EN/CV, EN/EL, BE/BI, TE/MPE, GS/ASE, DGS/RP, DG/HSE, EN/HDO, etc…

37. The New Radiation test facility at CERN: CHARM December 8 th 2014 37 How do we deal with SEEs within the R2E project ?  Commercial components to be used in systems operating in radiation environments need to be tested.  Standard SEE test are carried out at PSI (30-230 MeV protons) or at CERN in-house test facilities (mixed-radiation field).  Testing is expensive and time-consuming, however the criticality of many of the potential failures is high (especially in terms of beam-time loss).  The risk is foreseen to increase in the upcoming years due to increasing sensitivity and LHC intensity/luminosity.

38. The New Radiation test facility at CERN: CHARM December 8 th 2014 38 Shielding Configuration: -> Spectra Iron/Iron/Concrete/Concrete Concrete/Concrete/Iron/Iron Scoring in Rack 4

39. The New Radiation test facility at CERN: CHARM December 8 th 2014 39 Patch Panel – Cable list In total 255 cables available