Over the recent R2E irradiation campaigns, a new silicon diode setup proved to be a crucial tool in radiation environment characterization and validations of Monte-Carlo simulations. In this talk, a short description of the detector system will be given, along with highlights of the results and outlook for further development.
Guidelines for system-level testing of space equipment tested at CHARM were developed, highlighting potentials and limitations of such a solution for high-risk acceptance space missions. The achieved work can be of direct application to commercial systems used at CERN. The follow-up work will delve into the standardization of system-level testing for accelerator equipment covering the full...
Neutrons with energies between 0.1-10 MeV can significantly impact the Soft Error Rate (SER) in SRAMs and other microelectronics manufactured in scaled technologies, with respect to high-energy neutrons. Experimental measurements benchmarked with Monte Carlo simulations showed that neutrons with these energies can induce more than 60% of the overall upset rate in accelerator applications.
The latest comparisons between the measurements of the radiation detectors and the simulated values using the FLUKA code are presented. The focus is on the benchmarks for the LHC for the Total Ionising Dose (TID) recorded by the Beam Loss Monitors (BLMs) in discrete locations of IP1 and IP5, and by the Optical Fibre as a continuous passive measurement in the Dispersion Suppressor of IP1, as...
Our R&D activity targets the development of versatile radiation sensors to address environments typical of accelerators and space. In this presentation, we report the main scientific results on radioluminescence-based radiation sensing in optical fibres, showing the performances offered by this technology as well as the temperature dependence of the sensors response.
Lubrication problems in radiation areas at CERN and insufficient data for a reliable lubricant selection during design have highlighted the need to improve knowledge of radiation effects in oils and greases. R2M are preparing experimental studies to verify the radiation resistance of promising products identified via theoretical considerations and literature.
The BatMON is a wireless, battery-powered radiation monitoring system for particle accelerators. The system is based on radiation qualified COTS that allow the device to survive in radiation areas. The system can measure TID and High-Energy Hadron and Thermal Neutron fluences, thanks to the Floating-Gate dosimeter and SRAMs embedded on the sensor mezzanine.
Data are saved in a non-volatile...
With the upgrade of the HL-LHC, a certain number of systems require more radiation-tolerant FPGAs, especially against TID. In this presentation will be presented some promising results for CERN applications from radiation campaigns performed on two FPGAs: NGMedium from NanoXplore and PolarFire from Microsemi.
In addition to its regular operation with protons on a copper target, the CHARM facility was successfully exploited in Run 2 during heavy ion runs, requiring a dedicated effort to calibrate the instruments that measure the beam intensity in the facility. The results of these measurements are presented for the 2018 Pb ion campaign, highlighting the main conclusions and limitations.
In the framework of the heavy ion accelerator program, the CHARM facility has been exploited to investigate the effect of Ultra High Energy (UHE, >5 GeV/n) Heavy Ions on electronics. Testing at UHE provides important information on the Radiation Hardness Assurance of the component, however a few facilities allows such high energies (5.9 GeV/n for Pb-ions). In this context, a suitable...
The R2E project has explored the use of several irradiation facilities in Europe that can provide complementary and supplementary radiation testing coverage to CHARM mixed-field testing and PSI high-energy proton testing. This includes thermal, intermediate and high-energy neutron facilities as well as proton, heavy ion and pion facilities.
Accelerated terrestrial neutron irradiations were performed on commercial SiC power MOSFETs with planar, trench and double-trench architectures. Enhanced gate and drain leakage were observed in some devices which did not exhibit a destructive failure during the exposure. Failure cross-sections and FIT rates are discussed for the three architectures.
Wide bandgap power components are known for their resistance to both cumulative radiation damage and SEE, especially when compared to their silicon counterparts, and hence making them promising candidates for radiation tolerant accelerator systems. In this presentation, we show preliminary results of GaN power components recently tested with atmospheric neutrons at ChipIr (UK).
