Publication Date:
2017-03-02
Description:
The full-size prototypes of large-area silicon detectors for the Time-Of-Flight (TOF) diagnostics of heavy ions were tested with 132 Xe (600 MeV/u) beam. The obtained time resolution of the prototypes was about 13 ps, which satisfied the requirements of diagnostics for the Super Fragment Separator (Super-FRS) that is under development at GSI, Darmstadt, Germany. The irradiation effect on the timing properties of silicon detectors was studied with super-fast silicon pad detectors with a rise time of 190 ps. It was shown that the changes in the rise time of the leading edge of the detector current response to 40 Ar ions (40.5 MeV/u) were negligible up to the fluence of 2 × 10 11 ion/cm 2 expected after one year of Super-FRS operation. This result confirms the model of the leading edge current pulse formation via a flow of the polarization current in dense tracks of heavy ions and shows the perspectives for application of silicon detectors for...
Electronic ISSN:
1748-0221
Topics:
Physics