G. Giacomini
A5048918675- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- CCD and CMOS Imaging Sensors
- Nuclear Physics and Applications
- Medical Imaging Techniques and Applications
- Radiation Effects in Electronics
- Atomic and Subatomic Physics Research
- Dark Matter and Cosmic Phenomena
- Advancements in Semiconductor Devices and Circuit Design
- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Advanced Semiconductor Detectors and Materials
- X-ray Spectroscopy and Fluorescence Analysis
- Photocathodes and Microchannel Plates
- Advanced Optical Sensing Technologies
- Magnetic Field Sensors Techniques
- Thin-Film Transistor Technologies
- Electrostatic Discharge in Electronics
- Integrated Circuits and Semiconductor Failure Analysis
- Electron and X-Ray Spectroscopy Techniques
- Sensor Technology and Measurement Systems
- Silicon Carbide Semiconductor Technologies
- Silicon and Solar Cell Technologies
- Infrared Target Detection Methodologies
- Advanced MEMS and NEMS Technologies
Brookhaven National Laboratory
2016-2025
RIKEN BNL Research Center
2022-2024
Brookhaven College
2022-2024
University of California, Santa Cruz
2023
Institute of High Energy Physics
2020-2021
Chinese Academy of Sciences
2020-2021
Fondazione Bruno Kessler
2010-2019
Friedrich-Alexander-Universität Erlangen-Nürnberg
2019
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2008-2016
Istituto Nazionale di Fisica Nucleare
2016
The next-generation Enriched Xenon Observatory (nEXO) is a proposed experiment to search for neutrinoless double beta ($0\nu\beta\beta$) decay in $^{136}$Xe with target half-life sensitivity of approximately $10^{28}$ years using $5\times10^3$ kg isotopically enriched liquid-xenon time projection chamber. This improvement two orders magnitude over current limits obtained by significant increase the mass, monolithic and homogeneous configuration active medium, multi-parameter measurements...
Abstract The nEXO neutrinoless double beta (0 νββ ) decay experiment is designed to use a time projection chamber and 5000 kg of isotopically enriched liquid xenon search for the in 136 Xe. Progress detector design, paired with higher fidelity its simulation an advanced data analysis, based on one used final results EXO-200, produce sensitivity prediction that exceeds half-life 10 28 years. Specifically, improvements have been made understanding production scintillation photons charge as...
The projected performance and detector configuration of nEXO are described in this pre-Conceptual Design Report (pCDR). is a tonne-scale neutrinoless double beta ($0νββ$) decay search $^{136}$Xe, based on the ultra-low background liquid xenon technology validated by EXO-200. With $\simeq$ 5000 kg enriched to 90% isotope 136, has half-life sensitivity approximately $10^{28}$ years. This represents an improvement about two orders magnitude with respect current results. Based experience gained...
We report on the main design and technological characteristics related to latest 3D sensor process developments at Fondazione Bruno Kessler (FBK, Trento, Italy). With respect previous version of this technology, which involved columnar electrodes both doping types etched from wafer sides stopping a short distance opposite surface, passing-through columns are now available. This feature ensures better performance, but also higher reproducibility, is concern in medium volume productions. In...
Detectors that can simultaneously provide fine time and spatial resolution have attracted wide-spread interest for applications in several fields such as high-energy nuclear physics well low-energy electron detection, photon science, photonics imaging. Low-Gain Avalanche Diodes (LGADs), being fabricated on thin silicon substrates featuring a charge gain of up to 100, exhibit excellent timing performance. Since pads much larger than the substrate thickness are necessary achieve spatially...
In this work we present the results of experimental characterization Silicon Drift Detectors (SDDs) readout by CUBE preamplifiers for X-ray spectroscopy measurements. One specific goal was to characterize SDDs different sizes cooled at low temperature in view their use upgrade SIDDHARTA nuclear physics experiment. Beside target application, are also interest a more extended other applications. The have been designed as single units with square shape areas, 64 mm <sup...
The development of a large size gaseous detector single photons, able to stably operate at high gain and rate, provide good time resolution insensitivity magnetic field would be beneficial future Cherenkov Imaging Counters.The could based on the use multilayer architecture THGEM electron multipliers coupled solid state CsI photocathode.A systematic study response THGEM-based counters versus geometrical
Minimization of the insensitive edge area is one key requirements for silicon radiation detectors to be used in future trackers. In 3D this goal can achieved with active edge, at expense a high fabrication process complexity. framework ATLAS sensor collaboration, we produced modified sensors double-sided technology. While approach not suitable obtain edges, because it does use support wafer, allows new type termination, slim edge. paper report on development from numerical simulations design...
A system constituted by a Silicon Drift Detector (SDD), fabricated with an innovative technology for minimizing the anode current, and new CMOS charge sensitive preamplifier (CSA), designed ultimate low noise performance, has been realized experimentally characterized. The SDD is hexagonal active area of 13 mm2. current density measured at detector in operating condition 25 pA/cm2 +20°C. CSA—named SIRIO—has intrinsic Equivalent Noise Charge (ENC) ranging from 2.9 to 1.5 electrons r.m.s. 0.8...
We present a spectroscopic system constituted by Silicon Drift Detector (SDD) coupled to CMOS charge sensitive preamplifier, named SIRIO, specifically designed reach ultimate low noise levels. The SDD, with an active area of 13 mm , has been manufactured optimizing the production processes in order reduce anode current, successfully reaching current densities between 17 pA/cm and 25 at 20 for drift fields ranging from 100 V/cm 500 V/cm. preamplifier shows minimum intrinsic levels 1.27 1.0...
Future tonne-scale liquefied noble gas detectors depend on efficient light detection in the VUV range. In past years Silicon Photomultipliers (SiPMs) have emerged as a valid alternative to standard photomultiplier tubes or large area avalanche photodiodes. The next generation double beta decay experiment, nEXO, with 5 tonne liquid xenon time projection chamber, will use SiPMs for detecting $178\,\text{nm}$ scintillation light, order achieve an energy resolution of $\sigma / Q_{\beta\beta} =...
A large area, 120 × 72 mm2, linear Silicon Drift Detector (SDD) has been developed for X-ray spectroscopy in the 2-50 keV energy range. Elaborated via a number of prototypes, final detector design, REDSOX1, features elements to meet requirements modern space-borne with power consumption per sensitive area below 0.5 mW/cm2, offering possibility perform timing and observations on ten microseconds scale.
Abstract We present measurements of AC-LGADs performed at the Fermilab's test beam facility using 120 GeV protons. studied performance various strip and pad AC-LGAD sensors that were produced by BNL HPK. The are with our upgraded setup utilizes a high precision telescope tracker, simultaneous readout up to 7 channels per sensor, which allows detailed studies signal sharing characteristics. These allow us assess differences in designs between different manufacturers, optimize them based on...
Low Gain Avalanche Diodes (LGADs) are thin (20-50 μm ) silicon diode sensors with modest internal gain (typically 5 to 50) and exceptional time resolution (17 ps 50 ). However, the granularity of such devices is limited millimeter scale due need include protection structures at boundaries readout pads avoid premature breakdown large local electric fields. Here, we present a new approach – Deep-Junction LGAD (DJ-LGAD) that decouples high-field region from plane. This expected improve...
In spite of the constant technological improvements in field detector development, X‐ray fluorescence (XRF) soft regime remains a challenge. The low intrinsic yield for energies below 2 keV indeed renders applicability low‐energy XRF still difficult. Here, we report on new multi‐element multi‐tile detection system currently under designed to be integrated into microscopy end station. will installed at TwinMic beamline Elettra synchrotron (Trieste, Italy) order increase detected count rate by...