A5063054570- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- CCD and CMOS Imaging Sensors
- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Adaptive optics and wavefront sensing
- High-Energy Particle Collisions Research
- Radiation Effects in Electronics
- Diamond and Carbon-based Materials Research
- Quantum Chromodynamics and Particle Interactions
- Infrared Target Detection Methodologies
- Astrophysics and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Distributed and Parallel Computing Systems
- Thermal Radiation and Cooling Technologies
- Atomic and Subatomic Physics Research
- Advancements in Semiconductor Devices and Circuit Design
- Calibration and Measurement Techniques
- Photocathodes and Microchannel Plates
- Optical Systems and Laser Technology
- Electronic and Structural Properties of Oxides
- Conservation Techniques and Studies
- Graphite, nuclear technology, radiation studies
- Stellar, planetary, and galactic studies
- Computational Physics and Python Applications
University of Oxford
2016-2021
Purdue University West Lafayette
2002-2015
Institute of High Energy Physics
2012
Austrian Academy of Sciences
2012
University at Buffalo, State University of New York
1995
(Abridged) We describe here the most ambitious survey currently planned in optical, Large Synoptic Survey Telescope (LSST). A vast array of science will be enabled by a single wide-deep-fast sky survey, and LSST have unique capability faint time domain. The design is driven four main themes: probing dark energy matter, taking an inventory Solar System, exploring transient optical sky, mapping Milky Way. wide-field ground-based system sited at Cerro Pach\'{o}n northern Chile. telescope 8.4 m...
The Circular Electron Positron Collider (CEPC) is a large international scientific facility proposed by the Chinese particle physics community to explore Higgs boson and provide critical tests of underlying fundamental principles Standard Model that might reveal new physics. CEPC, be hosted in China circular underground tunnel approximately 100 km circumference, designed operate as factory producing electron-positron collisions with center-of-mass energy 240 GeV. collider will also at around...
The CMS detector team describes their experiment and observation of decay products from a standard model Higgs boson, allowing its mass to be determined.
The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu \rightarrow eee$ at branching fractions above $10^{-16}$. A first phase of using an existing beamline Paul Scherrer Institute (PSI) is designed reach a single event sensitivity $2\cdot 10^{-15}$. We present overview all aspects technical design and expected performance phase~I detector. high rate up $10^{8}$ muon decays per second low momenta electrons positrons pose unique set challenges, which we tackle...
Charge collection properties of particle detectors made in HV-CMOS technology were investigated before and after irradiation with reactor neutrons. Two different sensor types designed processed 180 350 nm by AMS. Edge-TCT charge measurements electrons from 90Sr source employed. Diffusion generated carriers undepleted substrate contributes significantly to the irradiation, while drift contribution prevails as shown at shaping times. The depleted region a given bias voltage was found grow...
The CMS pixel detector is the innermost tracking device at LHC, reconstructing interaction vertices and charged particle trajectories. current planar sensors located in layer of will be exposed to very high fluences which degrade their performances. As a possible replacement for High Luminosity-LHC (HL-LHC), 3D silicon technology under consideration due its expected good performance harsh radiation environments. Studies are also progress using detectors near-beam proton spectrometers LHC....
Carbon dioxide (CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ) as evaporative coolant has gained interest a technique for cooling of high-energy particle physics detectors and front-end electronics. Silicon tracking need to be maintained at sub-zero temperature enhance their lifetime in the presence radiation damage. In addition, material budget allocated infrastructure must small possible, allow maximum transparency trajectories...
The Large Synoptic Survey Telescope (LSST) uses an Active Optics System (AOS) to maintain system alignment and surface figure on its three large mirrors. Corrective actions fed the LSST AOS are determined from 4 curvature based wavefront sensors located corners of inscribed square within 3.5 degree field view. Each sensor is a split detector such that halves 1mm either side focus. In this paper we describe development Pipeline prototype simulates processing raw image data through estimation...
The pixel detector is the innermost tracking device in CMS, reconstructing interaction vertices and charged particle trajectories. sensors located layers of must be upgraded for ten-fold increase luminosity expected at High-Luminosity LHC (HL-LHC). As a possible replacement planar sensors, 3D silicon technology under consideration due to its good performance after high radiation fluence. In this paper, we report on pre- post- irradiation measurements CMS with different electrode...
We describe the commissioning of a system which has been built to investigate optimal operation CCDs for LSST telescope. The test is designed low vibration, high stability and capable illuminating detector in flat-field, projected spot, pattern Fe-55 configurations. compare some considerations when choosing gain calibration method exhibit brighter-fatter effect. An optimisation study on prototype device full well with varying back substrate bias gate clock levels presented.
The LHC luminosity upgrade, known as the High Luminosity (HL-LHC), will require replacement of existing silicon strip tracker and transistion radiation tracker. Although a baseline design for this exists ATLAS collaboration other non-ATLAS groups are exploring feasibility using CMOS Monolithic Active Pixel Sensors (MAPS) which would be arranged in strip-like fashion take advantage service support structure already being developed upgrade. Two test devices made with AMS H35 process (a voltage...
The fabrication of 3D detectors which requires bulk micromachining columnar electrodes has been realized with advancements in MEMS technology. Since the first prototype Stanford Nanofabrication Facility 1997, a significant effort put forth to transfer detector technology large scale manufacturing for future high luminosity collider experiments, radiation hardness will be primary concern, and other applications such as medical imaging X-ray molecular biology. First, alternative structures,...
The Large Synoptic Survey Telescope instrument include four guiding and wavefront sensing subsystems called corner raft subsystems, in addition to the main science array of 189 4K x CCDs. These are placed at corners instrumented field view. Each wavefront/guiding subsystem comprises a pair guide sensors, capable producing 9 frames/second, offset 2K curvature sensors from which images read out cadence camera system, providing 15 sec integrations. guider/wavefront rafts mechanically...