L. Paolozzi
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View article: A Scalable Sub-Picosecond TDC Based on Analog Sampling of Dual-Phase Signals from a Free-Running Oscillator
A Scalable Sub-Picosecond TDC Based on Analog Sampling of Dual-Phase Signals from a Free-Running Oscillator Open
This work presents a novel time-to-digital converter based on the analog sampling of dual-phase periodic signals generated from a free-running oscillator. A proof-of-concept ASIC, implemented in 130 nm CMOS technology, achieves an average …
View article: First Measurement of the Muon Neutrino Interaction Cross Section and Flux as a Function of Energy at the LHC with FASER
First Measurement of the Muon Neutrino Interaction Cross Section and Flux as a Function of Energy at the LHC with FASER Open
This Letter presents the measurement of the energy-dependent neutrino-nucleon cross section in tungsten and the differential flux of muon neutrinos and antineutrinos. The analysis is performed using proton-proton collision data at a center…
View article: Testbeam characterization of a SiGe BiCMOS monolithic silicon pixel detector with internal gain layer
Testbeam characterization of a SiGe BiCMOS monolithic silicon pixel detector with internal gain layer Open
A monolithic silicon pixel ASIC prototype, produced in 2024 as part of the Horizon 2020 MONOLITH ERC Advanced project, was tested with a 120 GeV/c pion beam. The ASIC features a matrix of hexagonal pixels with a 100 μm pitch, read by low-n…
View article: Testbeam Characterization of a SiGe BiCMOS Monolithic Silicon Pixel Detector with Internal Gain Layer
Testbeam Characterization of a SiGe BiCMOS Monolithic Silicon Pixel Detector with Internal Gain Layer Open
A monolithic silicon pixel ASIC prototype, produced in 2024 as part of the Horizon 2020 MONOLITH ERC Advanced project, was tested with a 120 GeV/c pion beam. The ASIC features a matrix of hexagonal pixels with a 100 μm pitch, read by low-n…
View article: Neutrino rate predictions for FASER
Neutrino rate predictions for FASER Open
The Forward Search Experiment (FASER) at CERN’s Large Hadron Collider (LHC) has recently directly detected the first collider neutrinos. Neutrinos play an important role in all FASER analyses, either as signal or background, and it is ther…
View article: Testbeam results of irradiated SiGe BiCMOS monolithic silicon pixel detector without internal gain layer
Testbeam results of irradiated SiGe BiCMOS monolithic silicon pixel detector without internal gain layer Open
Samples of the monolithic silicon pixel ASIC prototype produced in 2022 within the framework of the Horizon 2020 MONOLITH ERC Advanced project were irradiated with 70 MeV protons up to a fluence of 1 × 10 16 n eq /cm 2 , and then tested us…
View article: The FASER detector
The FASER detector Open
FASER, the ForwArd Search ExpeRiment, is an experiment dedicated to searching for light, extremely weakly-interacting particles at CERN's Large Hadron Collider (LHC). Such particles may be produced in the very forward direction of the LHC'…
View article: Testbeam results of irradiated SiGe BiCMOS monolithic silicon pixel detector without internal gain layer
Testbeam results of irradiated SiGe BiCMOS monolithic silicon pixel detector without internal gain layer Open
Samples of the monolithic silicon pixel ASIC prototype produced in 2022 within the framework of the Horizon 2020 MONOLITH ERC Advanced project were irradiated with 70 MeV protons up to a fluence of 1 x 1016 neq/cm2, and then tested using a…
View article: Time resolution of a SiGe BiCMOS monolithic silicon pixel detector without internal gain layer with a femtosecond laser
Time resolution of a SiGe BiCMOS monolithic silicon pixel detector without internal gain layer with a femtosecond laser Open
The time resolution of the second monolithic silicon pixel prototype produced for the MONOLITH H2020 ERC Advanced project was studied using a femtosecond laser. The ASIC contains a matrix of hexagonal pixels with 100 μm pitch, readout by l…
View article: Time Resolution of a SiGe BiCMOS Monolithic Silicon Pixel Detector without Internal Gain Layer with a Femtosecond Laser
Time Resolution of a SiGe BiCMOS Monolithic Silicon Pixel Detector without Internal Gain Layer with a Femtosecond Laser Open
The time resolution of the second monolithic silicon pixel prototype produced for the MONOLITH H2020 ERC Advanced project was studied using a femtosecond laser. The ASIC contains a matrix of hexagonal pixels with 100 μm pitch, readout by l…
View article: Radiation tolerance of SiGe BiCMOS monolithic silicon pixel detectors without internal gain layer
Radiation tolerance of SiGe BiCMOS monolithic silicon pixel detectors without internal gain layer Open
A monolithic silicon pixel prototype produced for the MONOLITH ERC Advanced project was irradiated with 70 MeV protons up to a fluence of 1 × 10 16 1 MeV n eq /cm 2 . The ASIC contains a matrix of hexagonal pixels with 100 μm pitch, readou…
View article: Search for dark photons with the FASER detector at the LHC
Search for dark photons with the FASER detector at the LHC Open
The FASER experiment at the LHC is designed to search for light, weakly-interacting particles produced in proton-proton collisions at the ATLAS interaction point that travel in the far-forward direction. The first results from a search for…
View article: Radiation Tolerance of SiGe BiCMOS Monolithic Silicon Pixel Detectors without Internal Gain Layer
Radiation Tolerance of SiGe BiCMOS Monolithic Silicon Pixel Detectors without Internal Gain Layer Open
A monolithic silicon pixel prototype produced for the MONOLITH ERC Advanced project was irradiated with 70 MeV protons up to a fluence of 1 x 10^16 1 MeV n_eq/cm^2. The ASIC contains a matrix of hexagonal pixels with 100 μm pitch, readout …
View article: First Direct Observation of Collider Neutrinos with FASER at the LHC
First Direct Observation of Collider Neutrinos with FASER at the LHC Open
Funder:
\n Heising-Simons Foundation
\n http://dx.doi.org/10.13039/100014155
View article: Novel high-speed monolithic silicon detector for particle physics
Novel high-speed monolithic silicon detector for particle physics Open
This contribution presents simulation results, implementation, and first tests of a monolithic detector developed at KIT. It consists of a sensor diode tightly integrated with an analogue front-end based on SiGe (Silicon-Germanium) SG13G2 …
View article: First Direct Observation of Collider Neutrinos with FASER at the LHC
First Direct Observation of Collider Neutrinos with FASER at the LHC Open
We report the first direct observation of neutrino interactions at a particle collider experiment. Neutrino candidate events are identified in a 13.6 TeV center-of-mass energy $pp$ collision data set of 35.4 fb${}^{-1}$ using the active el…
View article: 20 ps time resolution with a fully-efficient monolithic silicon pixel detector without internal gain layer
20 ps time resolution with a fully-efficient monolithic silicon pixel detector without internal gain layer Open
A second monolithic silicon pixel prototype was produced for the MONOLITH project. The ASIC contains a matrix of hexagonal pixels with 100 μm pitch, readout by a low-noise and very fast SiGe HBT frontend electronics. Wafers with 50 μm thic…
View article: Direct MIP detection with sub-10 ps timing resolution Geiger-Mode APDs
Direct MIP detection with sub-10 ps timing resolution Geiger-Mode APDs Open
In this work we present and discuss the use of state-of-the-art Geiger-mode APDs, also known as single-photon avalanche diodes (SPADs), for the detection of minimum ionizing particles (MIPs) with best-in-class timing resolution. The SPADs …
View article: Picosecond Avalanche Detector — working principle and gain measurement with a proof-of-concept prototype
Picosecond Avalanche Detector — working principle and gain measurement with a proof-of-concept prototype Open
The Picosecond Avalanche Detector is a multi-junction silicon pixel detector based on a (NP) drift (NP) gain structure, devised to enable charged-particle tracking with high spatial resolution and picosecond time-stamp capability. It uses …
View article: Testbeam results of the Picosecond Avalanche Detector proof-of-concept prototype
Testbeam results of the Picosecond Avalanche Detector proof-of-concept prototype Open
The proof-of-concept prototype of the Picosecond Avalanche Detector, a multi-PN junction monolithic silicon detector with continuous gain layer deep in the sensor depleted region, was tested with a beam of 180 GeV pions at the CERN SPS. Th…
View article: Sub-10 ps Minimum Ionizing Particle Detection With Geiger-Mode APDs
Sub-10 ps Minimum Ionizing Particle Detection With Geiger-Mode APDs Open
Major advances in silicon pixel detectors, with outstanding timing performance, have recently attracted significant attention in the community. In this work we present and discuss the use of state-of-the-art Geiger-mode APDs, also known as…
View article: The tracking detector of the FASER experiment
The tracking detector of the FASER experiment Open
FASER is a new experiment designed to search for new light weakly-interacting long-lived particles (LLPs) and study high-energy neutrino interactions in the very forward region of the LHC collisions at CERN. The experimental apparatus is s…
View article: Efficiency and time resolution of monolithic silicon pixel detectors in SiGe BiCMOS technology
Efficiency and time resolution of monolithic silicon pixel detectors in SiGe BiCMOS technology Open
A monolithic silicon pixel detector prototype has been produced in the SiGe BiCMOS SG13G2 130 nm node technology by IHP. The ASIC contains a matrix of hexagonal pixels with pitch of approximately 100 μm. Three analog pixels were calibrated…
View article: Measurements and analysis of different front-end configurations for monolithic SiGe BiCMOS pixel detectors for HEP applications
Measurements and analysis of different front-end configurations for monolithic SiGe BiCMOS pixel detectors for HEP applications Open
This paper presents a small-area monolithic pixel detector ASIC designed in 130 nm SiGe BiCMOS technology for the upgrade of the pre-shower detector of the FASER experiment at CERN. The purpose of this prototype is to study the integration…
View article: First neutrino interaction candidates at the LHC
First neutrino interaction candidates at the LHC Open
FASERν at the CERN Large Hadron Collider (LHC) is designed to directly detect collider neutrinos for the first time and study their cross sections at TeV energies, where no such measurements currently exist. In 2018, a pilot detector emplo…
View article: Sub-10 ps Minimum Ionizing Particle Detection with Geiger-Mode APDs
Sub-10 ps Minimum Ionizing Particle Detection with Geiger-Mode APDs Open
Major advances in silicon pixel detectors, with outstanding timing performance, have recently attracted significant attention in the community. In this work we present and discuss the use of state-of-the-art Geiger-mode APDs, also known as…
View article: A massively scalable Time-to-Digital Converter with a PLL-free calibration system in a commercial 130 nm process
A massively scalable Time-to-Digital Converter with a PLL-free calibration system in a commercial 130 nm process Open
A 33.6 ps LSB Time-to-Digital converter was designed in 130 nm BiCMOS technology. The core of the converter is a differential 9-stage ring oscillator, based on a multi-path architecture. A novel version of this design is proposed, along wi…