Radiation Test Facilities G. Spiezia

Engineering Department ENEN Radiation tests facilities  Radiation test in the accelerator sector  External facilities  PSI  Fraunhofer  CEA  Past CERN experimental areas and coming facilities  Useful links September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 2

Engineering Department ENEN R2E - Radiation tests and Monitoring  PLC failures at CNGS (2007)  Warning/alarm for the LHC equipment  Organization of the radiation tests and monitoring services in the framework of the R2E project  More and more support requests since then …  R2E project  Radiation working group  Monitoring and calculation working group September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 3

Engineering Department ENEN PSI facility  Energy range: 30 to 23 MeV  Beam spot 9 cm  Uniformity ~90% over 5 cm diameter  Maximum Proton flux (230 MeV): 1.5x10 8 p/cm 2 /sec  Flux measurement based on Ionization Chambers and scintillator (u 5-10 %)  TID (Si) evaluation based on calculation  Dose rate 300 Gy/h (230 MeV at 1.5x108 p/cm2/sec)  DD is also tested  Small volume  Low flux  Frame contract CERN-PSI  15 weekends per years (~30 hours per weekend) September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 4

Engineering Department ENEN PSI facility September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 5 DUT

Engineering Department ENEN Frauhnofer institute – TID tests  Internal Co-60 sources  Max dose rate 300 rad/s  Max dose for small samples: 100Mrad  Temperature range: -55 to +150 C  Dosimetry with ionization chambers and TLD  Test Volume up to 1 m 3  External source  Dose of 100 Mrad for large volumes  Only passive tests  Blanket contract between CERN and Fraunhofer  Ensure availability of the facility  Reduce cost  Neutron beam also available September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 6

Engineering Department ENEN Frauhnofer institute – TID tests September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 7  Cable feeds for the remote control  Possibility to get support for the test set-up preparation

Engineering Department ENEN CEA– PROSPERO  Fast fission neutron source with U235 core  Max power 3 kW  Max flux 3x10 10 n/cm 2 /s  Energy spectra with peak energy 0.8MeV  Fluence given in 1MeV equivalent  Dosimetry with  passive diodes and fission chambers  RadMons (Collaboration CERN – CEA)  The max fluence depends on the distance from the reactor and on the volume of the DUT September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 8

Engineering Department ENEN CEA– PROSPERO  Large room: length: 10 m – width: 8 m – height: 6.5 m  Installation  cylindrical basket which fits on the upper half of the reflector  platform that is part of the protection tunnel (300 to 700 mm distance from the reactor axis)  mobile table placed in the cell ( > 1 m distance from the reactor axis)  30 meters between the test room and the control room September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 9

Engineering Department ENEN CEA– PROSPERO September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 10

Engineering Department ENEN CEA– PROSPERO  Beam time must be asked one year in advance  Spare slots might be available  Main use of the facility is for their own applications September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 11

Engineering Department ENEN CERN– Experimental areas  Used till 2012  CNRAD: parasitic test facilities at CNGS  H4IRRAD: North area  Test of large volume (Electronics)  Radiation field spectra similar to LHC-one  Coming soon CHARM-PS (Cern High Energy Accelerator Mixed field/facility at the PS)  Dedicated for the Accelerator sector (Contacts: M. Brugger, J. Mekki)  Capable to reproduce the radiaiton field of the LHC tunnel and its shielded areas  Proton Irradiation facility for experiments (Contact: F. Ravotti, M. Moll)  Agenda of the meetings: September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 12

Engineering Department ENEN Useful links  R2E project:  RADWG:  Test reports: :V0/P:CERN :V0/TAB3https://edms.cern.ch/nav/P:CERN :V0/P:CERN :V0/TAB3  List of test facilities:  PSI  Fraunhofer: Beam time must be asked one year in advance  CEA: emplates/Show.asp?P=812&L=ENSpare slots might be available September 16, 2013G. Spiezia EN/STI/ECECMS Meeting - 13