Conveners
3D Sensors
- Gian-Franco Dalla Betta (INFN and University of Trento)
3D Sensors
- Gian-Franco Dalla Betta (INFN and University of Trento)
The CMS-TOTEM Precision Proton Spectrometer (PPS) consists of tracking and timing detectors installed along the LHC beam line between 210 and 220 m from the interaction point on both sides of the CMS experiment. The aim of the apparatus is to measure the position, direction and time-of-flight of protons which emerge intact from the pp collision. Fully integrated in the CMS data acquisition...
The High Luminosity upgrade of the CERN Large Hadron Collider (HL-LHC) will require new high-radiation tolerant silicon pixel sensors, capable of withstanding, in the innermost tracker layer, fluences up to $2.3\times 10^{16} n_{eq}/cm^2$ (1MeV equivalent neutrons). An extensive R&D program aiming at 3D pixel sensors, built with a top-side only process, has been put in place in CMS. A few...
3D pixel sensors are the technology of choice for the innermost layer (L0) of the ATLAS ITk detector at High Luminosity LHC. The considered sensors have pixel size of either 25 um x 100 um or 50 um x 50 um, with one read-out electrode at the center of a pixel and four bias electrodes at the corners. The former geometry has been chosen for the central part of L0 (barrel), the latter for the...
The Phase-II upgrade of the inner tracker of the CMS experiment is considering to use 3D pixel sensors for the innermost layers, given their intrinsic properties, well suited to resist the extreme radiation fluences expected at the High Luminosity Large Hadron Collider (HL-LHC). In this talk we present data collected from beam tests of 3D sensors bump-bonded to the RD53A prototype readout...
SINTEF MiNaLab recently completed its fifth fabrication run of full 3D pixel detectors with active-edges. The sensors were designed by the University of Oslo in collaboration with SINTEF within the Norwegian 3D detector collaboration. Sensors were fabricated on 6", Si-Si bonded wafers, with a device layer thickness of 150µm, using a single-sided processing approach. The production run included...
Developments on future tracking detectors go in the direction of a full 4D approach, in the sense of having both space and time measuring capabilities at the single pixel level. This is strongly motivated by the extremely high interaction intensities foreseen in the collider experiments of the next couple of decades and possibly beyond. Presently, no satisfactory technical solutions are...
We report the measurements of time resolution for double-sided 3D pixel sensors with a single cell of 50 {\mu}m x 50 {\mu}m fabricated at IMB-CNM. Measurements were conducted using a radioactive source at -20 and 20 degrees C in a bias voltage range of 50-200 V. The reference time was provided from an LGAD detector produced by Hamamatsu. Results are compared to previous measurements on...
The ATLAS experiment at LHC will replace its inner tracker system to cope with the extreme particle fluence expected with the High Luminosity upgrade of the accelerator (HL-LHC). The innermost layer of the new Inner Tracker (ITk) will be instrumented with 3D silicon sensors. This technology allows to decouple the active thickness and the inter-electrode distance effectively improving the...
