A5013311527- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Radiation Detection and Scintillator Technologies
- High-Energy Particle Collisions Research
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- CCD and CMOS Imaging Sensors
- Particle Detector Development and Performance
- Analytical Chemistry and Sensors
- Neutrino Physics Research
- Radiation Effects in Electronics
- Advanced Optical Sensing Technologies
- Semiconductor materials and devices
- Analog and Mixed-Signal Circuit Design
- Photonic and Optical Devices
- Stochastic processes and statistical mechanics
- Cosmology and Gravitation Theories
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Luminescence Properties of Advanced Materials
- Advancements in Semiconductor Devices and Circuit Design
- VLSI and Analog Circuit Testing
- Low-power high-performance VLSI design
- Integrated Circuits and Semiconductor Failure Analysis
Universitat de Barcelona
2019-2025
Universitat Ramon Llull
2024
Institute of Space Sciences
2024
Aix-Marseille Université
2023
Centre National de la Recherche Scientifique
2023
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
2023
Institut Català de Ciències del Clima
2021
University of Chinese Academy of Sciences
2020
Tsinghua University
2020
Peking University
2020
Time-of-Flight positron emission tomography scanners demand fast and efficient photo sensors scintillators coupled to readout electronics. This article presents the high resolution flexible Time-over-Threshold (HRFlexToT), a 16-channel application-specific-integrated circuit for silicon photomultipliers (SiPM) anode manufactured using XFAB 0.18- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$...
Abstract This work presents the 8-channel FastIC ASIC developed in CMOS 65 nm technology suitable for readout of positive and negative polarity sensors high energy physics experiments, Cherenkov detectors time-of-flight systems. The front-end can be configured to perform analog summation up 4 single-ended channels before discrimination view improving time resolution when segmenting a SiPM. outputs encode time-of-arrival information linear measurement which captures peak amplitude input...
Abstract The BETA application-specific integrated circuit (ASIC) is a fully programmable chip designed to amplify, shape and digitize the signal of up 64 Silicon photomultiplier (SiPM) channels, with power consumption approximately $$\sim$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mo>∼</mml:mo> </mml:math> 1 mW/channel. Owing its dual-path gain, capable resolving single photoelectrons (phes) signal-to-noise ratio (SNR) >5 while simultaneously achieving dynamic range...
This work presents the 8-channel FastIC ASIC developed in CMOS 65 nm technology suitable for readout of positive and negative polarity sensors with intrinsic amplification High Energy Physics experiments, Positron Emission Tomography other Time-of-Flight systems. The front-end can be configured to each input channel individually or perform analog summation up 4 single-ended channels before discrimination view extending precise timing large segmented areas. outputs encode Time-Of-Arrival...
The latest generation of silicon photomultipliers (SiPM) offers twice as much sensitivity to Cherenkov light observed at ground level when compared photomultipliers. Their use for imaging atmospheric telescopes is increasing, from the FACT telescope, pioneer, small-sized Telescope Array (CTA) or LHAASO WFCTA camera. robustness SiPMs represents a unique opportunity ensure long-term operation with low maintenance. In this work, we present developments and performance SiPM camera aiming...
The HRFlexToT is a 16-channel ASIC for SiPM anode readout with common cathode connection. It designed Positron Emission Tomography (PET) applications and it features high dynamic range (>8 bits), low input impedance, speed power (~3,5 mW/ch). has been manufactured using XFAB 0.18 μm CMOS technology. main characteristics of the are new energy measurement providing linear Time over Threshold (ToT) an extended range, lower consumption better timing response. Initial measurements show linearity...
This paper presents a highly configurable 16-channel TDC ASIC designed in commercial 180 nm technology with the following features: time-of-flight and time-over-threshold measurements, 8.6 ps LSB, 7.7 jitter, 5.6 linearity error, up to 5 MHz of sustained input rate per channel, 9.1 mW power consumption an area 4.57 mm2. The main contributions this work are novel design clock interpolation circuitry based on resistive mesh circuit capability operate at different supply voltages operating...
The HRFlexToT is a 16-channel ASIC for SiPM anode readout designed Positron Emission Tomography (PET) applications that features high dynamic range (>8 bits), low input impedance, common cathode connection, speed and power (~3.5 mW/ch). has been manufactured using XFAB 0.18 mm CMOS technology. main characteristics of the HRFlexToT, compared to its predecessor, are new energy measurement providing linear Time Over Threshold (ToT) with an extended range, lower consumption better timing...
Abstract This work presents the analog circuitry of FastRICH ASIC, a 16-channel developed in 65 nm CMOS technology specifically designed for RICH detector at LHCb to readout detectors like Photomultiplier Tubes be used LHC Run 4 and Silicon Photomultipliers candidates 5. The front-end (FE) stage has an input impedance below 50 Ω dynamic range from 5 μA mA with power consumption ∼5 mW/channel. chip includes Leading Edge Comparator (LED) Constant Fraction Discriminator (CFD) time pick-off...
Abstract Several applications that employ SiPMs require high time precision readout electronics. This work presents a study for the optimization of timing resolution electronics focused on effect sensor area, transistor scaling and power consumption electronic jitter. The design most critical stages are presented, specially front-end input stage in current-mode. performance three different technologies (180, 130 65 nm) studied. nm is best option to obtain good with less consumption. Dividing...
This work presents the BETA ASIC developed for SiPM readout of Scintillating Fiber Tracker (FIT) at High Energy Cosmic-Radiation Detection (HERD) facility. The main target this is to track minimum ionizing particles (MIPs) and perform a charge measurement detected events. 16-channel implemented in 130 nm technology signal processing has nominal power consumption 1 mW/ch. includes dual-gain scheme automatically configured depending on incoming that provides high dynamic range from 3800 pe 0.1...
The time response of a Silicon Photomultiplier (SiPM) depends on some the intrinsic parameters sensor. Combining multiple and small SiPM instead one with larger area will reduce detector capacitance at electronic level, which can be translated into lower signal jitter. This improve Single Photon Time Resolution (SPTR) sensor electronics thus Coincidence (CTR) PET system. effect is studied using combination physics simulation environment (GATE) commercial electrical simulator. GATE an...
The time resolution of active pixel sensors whose timestamp mechanism is based on time-to-digital converters critically linked to the accuracy in distribution master clock signal that latches values across detector. network (CDN) delivers must compensate process-voltage-temperature variations reduce static errors (skew) and minimize power supply bounce prevent dynamic (jitter). To achieve sub-100-ps within detectors thus enable a step forward multiple imaging applications, latencies be...
Time resolution of active pixel sensors whose time stamp mechanism is based on Time-to-Digital Converters critically linked to the accuracy in distribution master clock signal that latches timestamp values across detector. The Clock Distribution Network delivers must be robust non-idealities electronics, mainly process-voltage-temperature variations, device and layout mismatch noise coupling minimize static errors jitter. In order achieve sub-100ps within detectors thus enable a step forward...
The shift towards early diagnosis and prevention in medicine necessitates high-performing PET imaging systems with improved sensitivity specificity. To achieve this, additional time-of-flight measurements enhance the signal-to-noise ratio enable construction of better-performing systems. However, timing resolution is limited by several factors, such as slow scintillation response time, optical photon travel time spread, number detected photons, precision photo-sensor fast readout...
The field of detector readout electronics for precise timing has experienced a remarkable surge interest due to its diverse range applications in nuclear medicine such as Positron Emission Tomography (PET), High Energy Physics (HEP), Time-of-Flight (ToF) mass spectrometry and many other fields. This growth can be attributed rapid advancements photodetectors, particularly the silicon photomultiplier (SiPM), which demonstrated exceptional suitability these applications, owing ability generate...
Positron emission tomography (PET) has become standard practice in many clinical applications including oncology, cardiology and neurology. Recent developments PET scanners have pushed the limits of these applications, thanks to long axial field view which can improve system sensitivity use time-of-flight (TOF) information spatial resolution. However, cost space requirements for total-body systems created a need flexible, low-cost yet high-sensitivity with large view. Additionally, currently...
FastICpix is a novel reconfigurable low-light level hybrid detector concept that can be scaled to arbitrarily large areas and aims measure the position time of arrival single photons with ~20 ps resolution, bringing revolution in medical imaging other Time-of-Flight applications. FastICPix consists an array groups SPADs 3D-connected pixelated readout ASIC based on architectures designed 65 nm CMOS technology. Two flavours front-end amplifiers have been studied, achieving picosecond jitter....