N. van der Kolk
A5060329075- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Building energy efficiency and sustainability
- Renewable energy and sustainable power systems
- Nuclear reactor physics and engineering
- CCD and CMOS Imaging Sensors
- Superconducting Materials and Applications
- Dark Matter and Cosmic Phenomena
- Nuclear Physics and Applications
- Particle Accelerators and Free-Electron Lasers
- Neutrino Physics Research
- Stochastic processes and statistical mechanics
- Pulsars and Gravitational Waves Research
- Radiation Therapy and Dosimetry
- Computational Physics and Python Applications
- Superconducting and THz Device Technology
- International Science and Diplomacy
- Theoretical and Computational Physics
- Planetary Science and Exploration
- Advanced NMR Techniques and Applications
- Astrophysics and Cosmic Phenomena
- advanced mathematical theories
Utrecht University
2006-2023
National Institute for Subatomic Physics
2010-2023
Universidad Nacional Autónoma de México
2009-2022
A. Alikhanyan National Laboratory
2018-2022
University of Birmingham
2006-2022
Max Planck Institute for Physics
2015-2021
Budker Institute of Nuclear Physics
2020
Aligarh Muslim University
2020
Center for Research and Advanced Studies of the National Polytechnic Institute
2020
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
2020
A typical proton CT (pCT) detector comprises a tracking system, used to measure the position before and after imaged object, an energy/range residual range crossing object. The Bergen pCT collaboration was established design build prototype scanner with high granularity digital calorimeter (DTC) as both detector. In this work conceptual layout of mechanical electronics implementation, along Monte Carlo (MC) simulation new system are reported. DTC is multilayer structure lateral aperture 27...
An advanced prototype of a digital pixel calorimeter, EPICAL-2, has been constructed using ALPIDE MAPS sensors. It successfully tested with cosmic muons and test beams at DESY the CERN SPS. We will report on recent updates performance results, good linearity resolution. Comparisons to detailed MC simulations are made show understanding technology. The spatial precision event-by-event measurements showers allows unprecedented studies shower shape. detector features two-shower separation...
The high granularity of the CALICE Semi-Digital Hadronic CALorimeter (SDHCAL) provides capability to reveal track segments present in hadronic showers. These are then used as a tool probe behaviour active layers situ, better reconstruct energy these showers and also distinguish them from electromagnetic ones. In addition, comparison data simulation helps discriminate among different shower models simulation. To extract recorded SDHCAL, Hough Transform is after being adapted presence dense...
The Compact Linear Collider (CLIC) is a high-energy high-luminosity linear electron-positron collider under development. It foreseen to be built and operated in three stages, at centre-of-mass energies of 380 GeV, 1.5 TeV 3 TeV, respectively. offers rich physics program including direct searches as well the probing new through broad set precision measurements Standard Model processes, particularly Higgs-boson top-quark sectors. required for such specific conditions imposed by beam dimensions...
This paper presents results obtained with the combined CALICE Scintillator Electromagnetic Calorimeter, Analogue Hadronic Calorimeter and Tail Catcher & Muon Tracker, three high granularity scintillator-silicon photomultiplier calorimeter prototypes. The response of system to pions momenta between 4 GeV/c 32 is analysed, including average energy response, resolution, longitudinal shower profiles. Two techniques are applied reconstruct initial particle from measured depositions; a standard...
Abstract The first evaluation of an ultra-high granularity digital electromagnetic calorimeter prototype using 1.0–5.8 GeV/c electrons is presented. 25 × 10 6 pixel detector consists 24 layers ALPIDE CMOS MAPS sensors, with a pitch around 30 μm, and has depth almost 20 radiation lengths tungsten absorber. Ultra-thin cables allow for very compact design. properties that are critical physics studies measured: shower response, energy resolution linearity. stochastic comparable the state-of-the...
The event-plane method, which is widely used to analyze anisotropic flow in nucleus-nucleus collisions, known be biased by nonflow effects,especially at high $p_t$. Various methods (cumulants, Lee-Yang zeroes) have been proposed eliminate effects, but their implementation tedious, has limited application so far. In this paper, we show that the Lee-Yang-zeroes method can recast a form similar standard analysis. Nonflow correlations are strongly suppressed using information from length of...
The CALICE Semi-Digital Hadron Calorimeter (SDHCAL) technological prototype is a sampling calorimeter using Glass Resistive Plate Chamber detectors with three-threshold readout as the active medium. This technology one of two options proposed for hadron International Large Detector Linear Collider. was exposed to beams muons, electrons and pions different energies at CERN Super Proton Synchrotron. To be able study performance such in future experiments it important ensure reliable simulation...
Radiation therapy using protons and heavier ions is a fast-growing therapeutic option for cancer patients. A clinical system particle imaging in would enable online patient position verification, estimation of the dose deposition through range monitoring reduction uncertainties calculation relative stopping power patient. Several prototype modalities offer radiography computed tomography heavy ions. Digital Tracking Calorimeter (DTC), currently under development, has been proposed as one...
Polyethylene Naphtalate (PEN) is a mechanically very favorable polymer. Earlier it was found that thin foils made from PEN can have high radio-purity compared to other commercially available foils. In fact, already in use for low background signal transmission applications (cables). Recently has been realized also scintillating properties. combination, this makes promising candidate as self-vetoing structural material experiments. Components instrumented with light detectors could be built...
A prototype of a new type calorimeter has been designed and constructed, based on silicon-tungsten sampling design using pixel sensors with digital readout. It makes use the Alpide MAPS sensor developed for ALICE ITS upgrade. binary readout is possible due to size $\approx 30 \times \, \mu \mathrm{m}^2$. This successfully tested cosmic muons test beams at DESY CERN SPS. We report performance results obtained DESY, showing good energy resolution linearity, compare detailed MC simulations....
Abstract We report on measurements of beam backgrounds during the first commissioning phase SuperKEKB collider in 2016, performed with plastic scintillator and silicon photomultiplier-based CLAWS detector system. The sub-nanosecond time resolution single particle detection capability sensors allow bunch-by-bunch measurements, enable to perform a novel resolved analysis backgrounds, make system uniquely suited for study injection backgrounds. present various aspects regular background which...
In special tests, the active layers of CALICE Digital Hadron Calorimeter prototype, DHCAL, were exposed to low energy particle beams, without being interleaved by absorber plates. The thickness each layer corresponded approximately 0.29 radiation lengths or 0.034 nuclear interaction lengths, defined mostly copper and steel skins detector cassettes. This paper reports on measurements performed with this device in Fermilab test beam positrons range 1 10 GeV. are compared simulations based...
This contribution to LCWS2016 presents recent developments within the CLICdp collaboration. An updated scenario for staged operation of CLIC has been published; accelerator will operate at 380 GeV, 1.5 TeV and 3 TeV. The lowest energy stage is optimised precision Higgs top physics, while higher stages offer extended BSM physics sensitivity. detector models CLIC_SiD CLIC_ILD have replaced by a single detector; CLICdet. Performance studies R&D in technologies meet requirements this design...
Illustration of a non-central heavy ion collision.
Linear lepton colliders offer an excellent environment for precision measurements of the top quark. An overview is given current prospects on measurement quark mass, rare decays and couplings at International Collider (ILC) Compact (CLIC).