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View article: ASIX: Single-photon, energy resolved X-ray imaging with 50 μm hexagonal hybrid pixel
ASIX: Single-photon, energy resolved X-ray imaging with 50 μm hexagonal hybrid pixel Open
The Analog Spectral Imager for X-rays is a technology demonstrator of a small-pixel Hybrid Pixel Detector (HPD) designed for applications such as X-ray diffraction, synchrotron-based material science, and soft X-ray astrophysics requiring …
View article: Proton Irradiation on Hydrogenated Amorphous Silicon Flexible Devices
Proton Irradiation on Hydrogenated Amorphous Silicon Flexible Devices Open
Radiation damage tests in hydrogenated amorphous silicon (a-Si:H) flexible flux and dose-measuring devices have been performed with a 3 MeV proton beam, to evaluate combined displacement and total ionizing dose damage. The tested devices h…
View article: Hydrogenated Amorphous Silicon Charge-Selective Contact Devices on a Polyimide Flexible Substrate for Dosimetry and Beam Flux Measurements
Hydrogenated Amorphous Silicon Charge-Selective Contact Devices on a Polyimide Flexible Substrate for Dosimetry and Beam Flux Measurements Open
Hydrogenated amorphous silicon (a-Si:H) devices on flexible substrates are currently being studied for application in dosimetry and beam flux measurements. The necessity of in vivo dosimetry requires thin devices with maximal transparency …
View article: Single-Photon Detectors for Quantum Integrated Photonics
Single-Photon Detectors for Quantum Integrated Photonics Open
Single-photon detectors have gained significant attention recently, driven by advancements in quantum information technology. Applications such as quantum key distribution, quantum cryptography, and quantum computation demand the ability t…
View article: A Time-over-Threshold asynchronous front-end in 28 nm CMOS for the readout of pixel detectors in extreme radiation environments
A Time-over-Threshold asynchronous front-end in 28 nm CMOS for the readout of pixel detectors in extreme radiation environments Open
This work describes the design, in a 28 nm CMOS technology, of a front-end channel for the readout of pixel sensors in future particle accelerators. The channel being developed leverages the Time-Over-Threshold technique for the numerical …
View article: Mobility Gaps of Hydrogenated Amorphous Silicon Related to Hydrogen Concentration and Its Influence on Electrical Performance
Mobility Gaps of Hydrogenated Amorphous Silicon Related to Hydrogen Concentration and Its Influence on Electrical Performance Open
This paper presents a comprehensive study of hydrogenated amorphous silicon (a-Si)-based detectors, utilizing electrical characterization, Raman spectroscopy, photoemission, and inverse photoemission techniques. The unique properties of a-…
View article: Dosimetry of microbeam radiotherapy by flexible hydrogenated amorphous silicon detectors
Dosimetry of microbeam radiotherapy by flexible hydrogenated amorphous silicon detectors Open
Objective. Detectors that can provide accurate dosimetry for microbeam radiation therapy (MRT) must possess intrinsic radiation hardness, a high dynamic range, and a micron-scale spatial resolution. In this work we characterize hydrogenate…
View article: A Front-End Circuit in 28 nm CMOS for Hydrogenated Amorphous Silicon Detectors in Clinical Dosimetry
A Front-End Circuit in 28 nm CMOS for Hydrogenated Amorphous Silicon Detectors in Clinical Dosimetry Open
This paper presents the design and the characterization of a front-end circuit, designed in 28 nm CMOS, for real-time dosimetry in radiation diagnostics and radiation therapy. The front-end circuit is optimized for sensors made of hydrogen…
View article: Integrated Photonic Passive Building Blocks on Silicon-on-Insulator Platform
Integrated Photonic Passive Building Blocks on Silicon-on-Insulator Platform Open
Integrated photonics on Silicon-On-Insulator (SOI) substrates is a well developed research field that has already significantly impacted various fields, such as quantum computing, micro sensing devices, biosensing, and high-rate communicat…
View article: Hybrid Integrated Silicon Photonics Based on Nanomaterials
Hybrid Integrated Silicon Photonics Based on Nanomaterials Open
Integrated photonic platforms have rapidly emerged as highly promising and extensively investigated systems for advancing classical and quantum information technologies, since their ability to seamlessly integrate photonic components withi…
View article: Characterization of a flexible a‐Si:H detector for in vivo dosimetry in therapeutic x‐ray beams
Characterization of a flexible a‐Si:H detector for in vivo dosimetry in therapeutic x‐ray beams Open
Background The increasing use of complex and high dose‐rate treatments in radiation therapy necessitates advanced detectors to provide accurate dosimetry. Rather than relying on pre‐treatment quality assurance (QA) measurements alone, many…
View article: Characterization of Hydrogenated Amorphous Silicon Sensors on Polyimide Flexible Substrate
Characterization of Hydrogenated Amorphous Silicon Sensors on Polyimide Flexible Substrate Open
Hydrogenated amorphous silicon (a-Si:H) is a material having an intrinsically high radiation hardness that can be deposited on flexible substrates like Polyimide. For these properties a-Si:H can be used for the production of flexible senso…
View article: Solid-State Color Centers for Single-Photon Generation
Solid-State Color Centers for Single-Photon Generation Open
Single-photon sources are important for integrated photonics and quantum technologies, and can be used in quantum key distribution, quantum computing, and sensing. Color centers in the solid state are a promising candidate for the developm…
View article: A prototype 4D-tracking demonstrator based on the TimeSPOT developments
A prototype 4D-tracking demonstrator based on the TimeSPOT developments Open
We present first results obtained with a prototype 4D-tracking demonstrator, using sensors and electronics developed within the TimeSPOT project, and tested on a positive charged pion beam at CERN SPS. The setup consists of five small trac…
View article: Recent developments in the IGNITE project on front-enddesign in CMOS 28-nm technology
Recent developments in the IGNITE project on front-enddesign in CMOS 28-nm technology Open
The IGNITE project (INFN Ground-up INITiative-on micro-Electronics developments) is developing solutions on integrated micro-systems aimed at the next generation of high-luminosity experiment at the LHC. A test ASIC, designed in CMOS 28-nm…
View article: Quantum Information with Integrated Photonics
Quantum Information with Integrated Photonics Open
Since the 1980s, researchers have taken giant steps in understanding how to use quantum mechanics for solving real problems—for example, making a computer that works according to the laws of quantum mechanics. In recent decades, researcher…
View article: Hydrogenated amorphous silicon high flux x-ray detectors for synchrotron microbeam radiation therapy
Hydrogenated amorphous silicon high flux x-ray detectors for synchrotron microbeam radiation therapy Open
Objective . Microbeam radiation therapy (MRT) is an alternative emerging radiotherapy treatment modality which has demonstrated effective radioresistant tumour control while sparing surrounding healthy tissue in preclinical trials. This ap…
View article: A Hydrogenated amorphous silicon detector for Space Weather Applications
A Hydrogenated amorphous silicon detector for Space Weather Applications Open
The characteristics of a hydrogenated amorphous silicon (a-Si:H) detector are presented here for monitoring in space solar flares and the evolution of large energetic proton events up to hundreds of MeV. The a-Si:H presents an excellent ra…
View article: A Hydrogenated amorphous silicon detector for Space Weather Applications
A Hydrogenated amorphous silicon detector for Space Weather Applications Open
The characteristics of a hydrogenated amorphous silicon (a-Si:H) detector are presented here for monitoring in space solar flares and the evolution of large energetic proton events up to hundreds of MeV. The a-Si:H presents an excellent ra…
View article: The ASTAROTH project
The ASTAROTH project Open
The most discussed topic in direct searches for dark matter is arguably the verification of the DAMA claim. In fact, the observed annual modulation of the signal rate in an array of NaI(Tl) detectors can be interpreted as the awaited signa…
View article: The ASTAROTH project
The ASTAROTH project Open
The most discussed topic in direct search for dark matter is arguably the verification of the DAMA claim. In fact, the observed annual modulation of the signal rate in an array of NaI(Tl) detectors can be interpreted as the awaited signatu…
View article: Timespot1: A 28nm CMOS Pixel Read-Out ASIC for 4D Tracking at High Rates
Timespot1: A 28nm CMOS Pixel Read-Out ASIC for 4D Tracking at High Rates Open
We present the first characterization results of Timespot1, an ASIC designed in CMOS 28 nm technology, featuring a $32 \times 32$ pixel matrix with a pitch of $55 ~ μm$. Timespot1 is the first small-size prototype, conceived to readout fin…
View article: The AM08 Associative Memory ASIC Design, Architecture and Evaluation methodology
The AM08 Associative Memory ASIC Design, Architecture and Evaluation methodology Open
The Associative Memory (AM) ASIC reached its version 8 in 2020 when it was submitted for fabrication. The AM08 has all the functionalities of the final chip, AM0, which was planned for the ATLAS Experiment’s Hardware Track Trigger(HTT) sys…
View article: First measurements on the Timespot1 ASIC: a fast-timing, high-rate pixel-matrix front-end
First measurements on the Timespot1 ASIC: a fast-timing, high-rate pixel-matrix front-end Open
This work presents the first measurements performed on the Timespot1 ASIC. As the second prototype developed for the TimeSPOT project, the ASIC features a 32 × 32 channels hybrid-pixel matrix. Targeted to space-time tracking applications i…
View article: The ASTAROTH Project: enhanced low-energy sensitivity to Dark Matter annual modulation
The ASTAROTH Project: enhanced low-energy sensitivity to Dark Matter annual modulation Open
ASTAROTH is a novel R&D project which aims at improving the physics reach of future direct dark matter detection experiments based on NaI(Tl) scintillating crystals. There is a strong need to test the long standing DAMA positive observatio…
View article: Search for heavy particles in the $b$-tagged dijet mass distribution with additional $b$-tagged jets in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS experiment
Search for heavy particles in the $b$-tagged dijet mass distribution with additional $b$-tagged jets in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS experiment Open
A search optimized for new heavy particles decaying to two $b$-quarks and produced in association with additional $b$-quarks is reported. The sensitivity is improved by $b$-tagging at least one lower-$p_\text{T}$ jet in addition to the two…