Test-beam and simulation studies of the monolithic CMOS silicon sensor CLICTD

  • Speaker: Katharina Dort
  • Status: accepted as oral presentation
  • Abstract: The CLIC Tracker Detector (CLICTD) is a pixelated monolithic sensor targeting the requirements of the tracking detector for the Compact Linear Collider (CLIC). CLICTD is fabricated in a modified 180 nm CMOS imaging process. It features a high-resistivity epitaxial layer and a small collection diode. The front-end design is based on an innovative sub-pixel segmentation scheme which allows for the reduction of the digital circuitry while maintaining the small collection diode design. In this contribution, recent test-beam results for CLICTD assemblies with sensor thicknesses between 300 and 50 micrometers are presented. In particular, the sensor performance in dependence of the incidence angle of particle tracks is evaluated. Moreover, the test-beam results are supplemented with simulation studies using a combination of 3D TCAD and Monte-Carlo simulations with the Allpix Squared framework.
  • Slides

Improvement of the EUDET Telescope Timing Performance

  • Speaker: Jens Kroeger
  • Status: accepted as oral presentation
  • Abstract: Stringent requirements are posed on the next generations of vertex and tracking detectors for high-energy physics experiments to reach the foreseen physics goals. Hence, a large variety of silicon sensors targeting the specific needs of each use case are developed and tested both in laboratory and test-beam measurement campaigns. An increasing number of these detectors provides hit time information with high precision. The EUDET telescopes serve as high performance reference telescopes for many years with an excellent spatial resolution. In this contribution, recent results are presented showing that the reference track time resolution of the telescope can be improved from O(10ns) to below 1ns by making full use of the information stored in the data of the AIDA TLU with an upgraded firmware version. In addition, a Timepix3 reference plane with a time resolution of 1.1ns was added to one of the telescope setups to resolve ambiguities for the track timestamp for larger occupancies. The analysis was performed using the Corryvreckan framework and an example is shown how to achieve the presented improvements.
  • Slides

Test-beam performance evaluation of CLICpix2 fine-pitch hybrid silicon pixel detector prototypes

  • Speaker: Morag Williams
  • Status: accepted as oral presentation
  • Abstract: The experimental conditions at future colliders pose new challenges for silicon pixel technologies. In particular, the next generation of inner detector sub-systems will require simultaneously high efficiency, high resolution, low material budget, and low power consumption pixel detectors. One example is the vertex detector of the proposed Compact Linear Collider (CLIC), an electron-positron collider achieving centre-of-mass energies between 380GeV and 3TeV. To fulfil these ambitious targets for the inner detectors, the CLICpix2 fine-pitch hybrid readout ASIC has been designed using a 65 nanometre CMOS process. The ASIC has 25x25 micrometre pitch pixels and is capable of simultaneous per-pixel charge and time measurements. CLICpix2 samples have been bump-bonded to 130 micrometre planar active-edge silicon sensors and their performance assessed through detailed test-beam data analysis. This contribution will present the performance evaluation of two CLICpix2 planar sensor assemblies, focusing on spatial resolution, timing resolution, and efficiency measurements.
  • Slides
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PDFpdf 2021-02-09_BTTB9_JensKroeger_final.pdf r1 manage 67657.4 K 2021-02-12 - 12:02 EmiliaLeogrande  
PDFpdf 20210209_bttb9_clictdSensor_kdort.pdf r1 manage 12451.0 K 2021-02-12 - 12:02 EmiliaLeogrande  
PDFpdf BTTB9_3.pdf r1 manage 4072.2 K 2021-02-12 - 12:02 EmiliaLeogrande  
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