A beam telescope based on the Timepix4 ASIC was built in order to perform tests of synchronous multiple-detector readout and track reconstruction with fast timing capability.
The telescope consists of eight planes with n-on-p silicon sensors, each bump bonded to a Timepix4 ASIC. Four of these planes are instrumented with 300 µm thick planar sensors, and they are tilted with respect to the be...
The High Luminosity program of the LHC collider (HL-LHC), expected to start in 2029, will provide almost a factor 5 increase in the instantaneous luminosity and a factor 10 in the integrated luminosity compared to the current LHC.
The HL-LHC poses unprecedented challenges to the inner tracking pixel-based systems: pixel hit rates up to 3 GHz/cm$^2$, hadron fluences exceeding 10$^{16}$...
The CMS Precision Proton Spectrometer (PPS) was designed for measuring protons that escape along the LHC beam line after the interaction in CMS. It has successfully taken data during the LHC Run 2, collecting more than 110 fb-1 of integrated luminosity, and since 2022 is taking data in Run 3. A substantial upgrade of the PPS tracker was designed in preparation for Run 3, concerning the...
The CMS experiment will be upgraded with a MIP Timing Detector (MTD) for the High-Luminosity phase of the LHC (HL-LHC). The precise timing provided by MTD will help mitigate the effects of the challenging pile-up conditions expected at the High-Luminosity LHC and extend the physics reach of the experiment. The Endcap Timing Layer (ETL) will instrument the forward region of the MTD detector,...
The SIG and MERLINO INFN projects are developing new technologies for Particle Therapy beam monitoring systems, also integrating range a verification technique based on Prompt Gamma Timing (PGT) with a primary particle beam monitor able to track the single particles.
The aim of the final system is to measure on-line the time difference between a single primary particle crossing a thin...
A proof-of-principle setup with two bent silicon crystals is planned to be operated during LHC Run 3. It serves as preparation for an experiment aimed at measuring the dipole moments of charm baryons, from LHC Run 4 onwards, relying on the phenomena of particle channeling and spin precession in the bent crystals.
A silicon pixel module, based on the LHCb Velo sensors, is currently under...
The frontier activities of nuclear and subnuclear physics require devices with excellent performance in terms of stability and ability to operate at high fluxes of incident particles. Silicon carbide could be a good alternative to silicon devices due to its high resistance to radiation.
In this work we present the radiation damage study of a new, large area, p-n junction silicon carbide...
Radiation damage significantly impacts the performance of silicon tracking detectors in Large Hadron Collider (LHC) experiments such as ATLAS and CMS, with signal reduction being the most critical effect. While adjusting sensor bias voltage and detection thresholds can help mitigate these effects, generating simulated data that accurately mirrors the performance evolution with the accumulation...
The next generation of high-energy and high-intensity hadron colliders for particle physics will require tracking detectors able to efficiently record charged particles in harsh radiation environments, where expected fluences exceed 10$^{17}$ particles/cm$^{2}$.
Recently, thin Low-Gain Avalanche Diodes (LGADs), with an active thickness of $\sim$ 50 $\mu m$, have proven their ability to...
The dual-radiator (dRICH) detector of the ePIC experiment at the future Electron-Ion Collider (EIC) will make use of a large array of silicon photomultipliers (SiPM) sensors for the detection of the emitted Cherenkov light. The photodetector surface will cover ~ 3 m2 with 3x3 mm2 pixels, for a total of more than 300 k readout channels. SiPM is the emerging solid-state technology for photon...
In this contribution, we will present the very preliminary experimental performances obtained with the ASIC FAST3. FAST3 is a multi-channel amplifier optimized to read out LGAD sensors and designed to achieve a temporal jitter below 20 ps.
FAST3 was developed by the microelectronic group of INFN Turin. FAST3 has been designed in UMC 110 nm CMOS technology, and has 16 channels distributed over...
The design of the Micro Vertex Detector (MVD) for the PANDA experiment is optimized for the detection of secondary vertices and maximum acceptance close to the interaction point. The MVD consists of a 4-layer barrel section, placed around the interaction point, and a 6-disks forward section, located in the forward position. The outermost layers of the MVD will be equipped with double sided...
ASTRA-64 (Adaptable Silicon sTrip Read-out ASIC) is a 64-channel mixed-signal custom IC designed for micro-strip silicon sensors read-out. Manufactured in a 110-nm technology node, it comprises two identical mirrored subcircuits, each accommodating 32 channels.
Recursively, each channel integrates two main blocks: a charge-sensitive amplifier and a shaper. The former features two programmable...
This contribution reports on the spatial and temporal resolutions of an RSD 450-micron pitch pixels array measured at the DESY test beam facility. RSDs, Resistive Silicon Detectors, also known as AC-LGAD, achieve excellent position and temporal resolution by exploiting charge sharing among neighboring electrodes. The RSD matrix used in this study is part of the second FBK RSD production,...
In this work, we present a detailed study of the spatial and temporal resolution of Resistive Silicon Detectors (RSD) with cross-shaped electrodes, measured using a high-energy protons/pions beam at CERN SPS, within the AIDAINNOVA collaboration. The tested RSD2 sensors, fabricated by FBK, have relatively large pixel sizes (1300 and 450 microns pitch) and innovative read-out electrode layouts...
FBK has produced the Trench-Isolated LGADs (TI-LGADs) to study the effect of Carbon on breakdown and demonstrate the scalability of the technology for larger sensors. TI-LGADs have the potential to significantly reduce the no-gain region as compared to the standard LGAD technology. This contribution presents the electrical characterization of TI-LGADs produced under AIDA-INNOVA. The devices...
We present results obtained on the characterization of AC-LGAD sensors developed by Brookhaven National Laboratory (BNL), and TI-LGAD developed at FBK. These two technologies are promising candidates to achieve 4D charged particle tracking. In addition to tests with laser TCT, these devices have been investigated during a test beam campaign organized in the framework of the AIDAInnova WP6...
In this report we present the latest results from our comprehensive study on Ti-LGAD interpixel region under low and high charge injection, using fs-laser and SPA-TCT and TPA-TCT experimental techniques at ELI Beamlines, ELI ERIC. Samples have been investigated using probe station at the Institute of Physics of the Czech Academy of Science, and IV/CV distributions will be presented. All...
In the last few years, Low Gain Avalanche Detectors (LGAD) have demonstrated their outstanding performance when detecting high-energy charged particles. However, the very nature of electrons and holes under avalanche multiplication highlights that this good performance is diminished when they are to detect low penetrating particles (e.g. low-energy protons or soft x-rays). A novel design of an...
Single photon counting and charge integrating hybrid pixel detectors are an established standard for photon science applications at hard X-ray energies between $\sim\,$2 keV and 20 keV. Their capabilities for high frame rates and dynamic range, large area coverage, high signal-to-noise ratio and spatial resolution also make them attractive for applications at soft X-ray energies (< 2keV)....
Solid-state systems based on Si-microstrip sensors are a consolidated technology for precision particle tracking in space, as first demonstrated by the operations of the AMS-01 detector and confirmed by PAMELA, Fermi-LAT, AGILE, AMS-02, DAMPE. The next generation of large acceptance AstroParticle space detectors (e-ASTROGAM, AMEGO, PANGU, HERD, ALADInO, AMS-100) requires larger surface...
DarkSide-20k is the next future experimental project, that combines the
special technique for the procurement and purification of underground
Argon with the light detection technology based on large arrays of
customized cryogenic photosensors. Together with an accurate selection of
radiopure materials DS-20k experiment is expected to hunt for WIMPs in a
free background mode for an...
Silicon Photomultipliers (SiPMs) have gathered interest in several fields from High Energy Physics experiments to biomedical applications thanks to their excellent energy and timing resolution, together with their low operating voltage, low cost, ruggedness and insensitivity to the magnetic fields. The modeling of the SiPM in terms of equivalent electrical circuit and the estimation of its...
Over the last few years, Fondazione Bruno Kessler (FBK, Trento, Italy) has gained experience in the development of several Silicon Photomultiplier (SiPMs) technologies. The SiPM is a solid-state photodetector, sensitive to single-photons, which is becoming the device of choice in different applications, ranging from the big physics experiments to medical applications, such as time-of-flight...
The LHCb experiment at CERN is preparing a major upgrade to cope with the increase of instantaneous luminosity at LHC scheduled for Run 5. LHCb detector will operate at an instantaneous luminosity of about $1.5 \times 10^{34} \, cm^{-2} \, s^{-1}$. In these conditions approximately 2000 tracks from 40 proton-proton collisions will cross the vertex detector every $25 \, ns$.
To properly...
The ATLAS Inner Detector will be completely replaced with an all-silicon Inner Tracker (ITk) to withstand the harsh operational conditions of the High Luminosity LHC at CERN. The ITk pixel detector will be located in the innermost part of the tracker. It will be instrumented with different sensor technologies, 3D and planars, according to the expected total fluence, which reaches up to...
The MONOLITH H2020 ERC Advanced project aims at producing a high-granularity monolithic silicon pixel detector with picosecond-level time stamping. Such extreme timing exploits fast and low-noise SiGe BiCMOS electronics, and a novel sensor concept: the Picosecond Avalanche Detector (PicoAD).
A prototype without internal gain layer and 100µm pixel pitch was produced in 2022.
Lab...
The 100 µPET project is developing a novel small-animal PET scanner for ultra-high-resolution molecular imaging. The design consists of four towers surrounding the tissue to be analysed, each containing 60 layers of monolithic pixel sensors and flexible printed circuits.
The monolithic pixel sensor based on SiGe BiCMOS technology with HBTs offers high bandwidth and efficient noise-power...
The RD50-MPW chip series are generic R&D High Voltage CMOS pixel chips aimed at boosting the performance of this sensor technology especially in terms of radiation tolerance, timing resolution and pixel size in view of the harsh requirements imposed by future physics experiments on tracking systems. The latest prototype, RD50-MPW4, demonstrates significant improvements on the...
Monolithic CMOS silicon sensors represent an important innovation for high-energy physics experiments due to their cheaper production and assembly cost compared to hybrid ones. Indeed, in hybrid devices, the electronics and the sensor are produced in different silicon substrates which must be later connected using bonding techniques. However, as far as the time resolution is concerned, the...
Hybrid Pixel Detectors (HPDs) have been widely adopted for diffraction-based modalities in electron microscopy thanks to their high frame rates (> 1 kHz) and large dynamic range. However, they are less suitable for imaging applications because of their poor spatial resolution due to relatively large pixels (≥ 25 μm) and to the multiple scattering of high-energy electrons (> 100 keV) in the...
Future high-energy physics experiments will consider measuring concurrently the location and the time of a particle hit with very good accuracy, i.e., 4D trackers should be the basic option for future detection systems.
Within this framework, DC-coupled Resistive Silicon Detectors (DC-RSD), an evolution of the AC-coupled design, are considered a very promising option. They combine two...
In the passive CMOS Strips Project, strip sensors were designed by a collaboration of German ATLAS groups and produced at LFoundry in 150 nm technology. Up to five individual reticules were connected by stitching at the foundry in order to obtain the typical strip lengths required for the LHC Phase-II upgrade of ATLAS or CMS trackers. After dicing, sensors were tested in a probe station and...
