On the TSL and OSL properties of SrS:Ce,Sm phosphor

International audienceThe photoluminescence (PL), thermostimulated luminescence (TSL) and optical stimulated luminescence (OSL) properties of a cerium and samarium codoped strontium sulfide (SrS : Ce,Sm) used in OSL imaging devices are studied after UV or X-ray irradiation. A correlation is made between TSL and OSL results, showing a strong thermal and optical fading at room temperature, implying a significant instability of the OSL signa

Conception of an Active Integrated Sensor for the Radiation Monitoring of the CMS Experiment at the Large Hadron Collider

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Optically Stimulated Luminescent materials for wide spectrum neutron measurements

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Optically Stimulated Luminescence Materials for Wide-Spectrum Neutron Measurements at CERN

For the first time, Optically Stimulated Luminescence (OSL) materials with enhanced neutron-sensitivity have been irradiated. The neutron irradiations were carried out in the accelerator-like environment of the IRRAD2 facility at CERN, Geneva, Switzerland and in the TRIGA reactor at JSI, Ljubljana, Slovenia. The results show the possibility to measure with high accuracy the thermal and the fast components of these two different neutron spectra by means of OSL materials doped with Boron or mixed with Polyethylene. The applicability of this technology in the measurement of the neutron components in the complex radiation environment expected at CERN LHC experiments is therefore demonstrated

Conception of an Integrated Sensor for the Radiation Monitoring of the CMS Experiment at the Large Hadron Collider

International audienceThe concept of an active integrated dosimetric sensor for the radiation monitoring of the Compact Muon Solenoid experiment at the CERN (European Center for Nuclear Research) Large Hadron Collider is presented. The sensor,based on RadFET, OSL, p-i-n diode, and pad detector dosimeters, will measure both ionizing and nonionizing energy losses in the harsh radiation environment produced by hadron interactions

Online Dosimetry Based on Optically Stimulated Luminescent Materials

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Hardening of a radiation sensor based on optically stimulated luminescence

International audienceThe loss of sensitivity induced by the displacement damage effect on the optically stimulated luminescent dosimeter is investigated. A new architecture is proposed and successfully tested to harden the sensor at system level