Explanipedia

Characterization of micro-SPECT system based on Timepix detector Open

V. A. Rozhkov, I. Hernandez, A.G. Leyva, A. Zhemchugov · 2025

In this work, the characteristics of a prototype SPECT system based on the Timepix readout chip, with a MURA type encoding mask, were evaluated. The set-up has a small field of view and can be used in preclinical studies of drugs in small …

The use of neural networks in the practice of jet-grouting Open

N. Ovchinnikov, И. Л. Гладков, A. Zhemchugov · 2023

The technology of jet grouting has been used for ground stabilization during construction of various structures for quite a long time. However, the task of developing effective methods of predicting actual geometric and physical-mechanical…

Linac-200: a new electron test beam facility Open

A. N. Trifonov, A. E. Brukva, Mikhail Gostkin, Д В Демин, Valery Kobets , et al. · 2022

The linear accelerator Linac-200 at JINR is a new facility, constructed to provide electron test beams to carry out particle detectors R&D, to perform studies of advanced methods of electron beam diagnostics, and for applied research. The …

Deep learning for track recognition in pixel and strip-based particle detectors Open

O. Bakina, D. Baranov, I. Denisenko, P. Goncharov, Andrey Nechaevskiy , et al. · 2022

The reconstruction of charged particle trajectories in tracking detectors is a key problem in the analysis of experimental data for high-energy and nuclear physics. The amount of data in modern experiments is so large that classical tracki…

Two-photon physics at future electron-positron colliders* Open

I. Boyko, V. V. Bytev, A. Zhemchugov · 2022

Two photon collisions offer a variety of physics phenomena that can be studied at future electron-positron colliders. Using the planned CEPC parameters as a benchmark, we consider several topics within two-photon collisions. With the full …

IMPROVEMENTS OF THE LOOT MODEL FOR PRIMARY VERTEX FINDING BASED ON THE ANALYSIS OF DEVELOPMENT RESULTS Open

E. Rezvaya, Pavel Goncharov, Y. Nefedov, G. Ososkov, A. Zhemchugov · 2021

The recognition of particle trajectories (tracks) from experimental measurements plays a key role in the reconstruction of events in experimental high-energy physics. Knowledge about the primary vertex of an event can significantly improve…

OFFLINE SOFTWARE AND COMPUTING FOR THE SPD EXPERIMENT Open

Vladimir Andreev, Anna Belova, A. Galoyan, S. Gerassimov, G. Golovanov , et al. · 2021

The SPD (Spin Physics Detector) is a planned spin physics experiment in the second interaction pointof the NICA collider that is under construction at JINR. The main goal of the experiment is the test ofbasic of the QCD via the study of th…

Offline Software and Computing for the SPD experiment Open

V. Andreev, Anna Belova, A. Galoyan, S. Gerassimov, G. Golovanov , et al. · 2021

The SPD (Spin Physics Detector) is a planned spin physics experiment in the second interaction point of the NICA collider that is under construction at JINR. The main goal of the experiment is the test of basic of the QCD via the study of …

Design and Simulation of an S-Band RF Photogun for a New Injector of the Accelerator Linac-200 at JINR Open

Y. A. Samofalova, A. M. Barnyakov, Valery Kobets, Mikhail Nozdrin, A. Zhemchugov · 2021

A new 2.856 GHz S-band RF photogun for the generation of ultrashort electron beams at the LINAC-200 accelerator at JINR is simulated. The beam parameters at the photogun output are determined to meet the requirements of the LINAC-200 injec…

Modeling of the Energy Compression System SLED for the LINAC-200 Accelerator Open

Konstantin Yunenko, Mikhail Gostkin, Valery Kobets, A. Zhemchugov · 2021

This paper is devoted to the research of the possibility of increasing the output energy of an electron beam at the LINAC-200 linear accelerator by using the SLED energy compression system with constant parameters of the storage cavities. …

Two-photon physics at future electron-positron colliders Open

I. R. Boyko, V. V. Bytev, A. Zhemchugov · 2021

Two photon collisions offer a variety of physics studies that can be performed at the future electron-positron colliders. Using the planned CEPC parameters as a benchmark we consider several topics to be studied in the two-photon collision…

Linac-200: A New Electron Test Beam Facility at JINR Open

Mikhail Nozdrin, M. I. Gostkin, Valery Kobets, Y. A. Samofalova, G. Shirkov , et al. · 2021

Commissioning of a new electron test beam facility Linac-200 comes to the end at JINR (Dubna, Russia). The core of the facility is a refurbished MEA accelerator from NIKHEF. The key accelerator subsystems including controls, vacuum, precis…

Local strategy of particle tracking with TrackNETv2 on the BES-III CGEM inner detector Open

Anastasiya Nikolskaia, Egor Schavelev, Pavel Goncharov, Gennadiy A. Ososkov, Yury Nefedov , et al. · 2021

The BESIII experiment is a multi-purpose detector operating at the beams of the electron-positron collider BEPCII in Beijing. Particle tracking is a fundamental part of data analysis for this experiment. The inner part of the BESIII tracke…

A Concept for Reconstruction of the Capsulated Microchip Structure Using Its Interaction with High-Energy Ion Beams of the NICA Accelerator Complex Open

Alexey Slivin, Andrey Butenko, G. Filatov, E. Syresin, Alexey Tuzikov , et al. · 2021

Within the framework of the NICA project an applied research station for irradiation by long-range ions (SODIT) is being constructed for testing radiation hardness of semiconductor micro- and nanoelectronics products in the energy range of…

Reconstruction of microchip structure at its interaction with high energy ion beams of NICA accelerator complex Open

Alexey Slivin, G. Filatov, E. Syresin, A. Zhemchugov, А. П. Потылицын · 2021

Within the framework of the Nuclotron–based Ion Collider fAcility (NICA) project an Innovation Block is being constructed. It includes an applied research station for microchips with a package for radiation resistance testing. The ions up …

Tracking on the BESIII CGEM inner detector using deep learning Open

G. Ososkov, Olga Bakina, Dmitry Baranov, Pavel Goncharov, I. Denisenko , et al. · 2020

Реконструкция траекторий заряженных частиц в трековых детекторах является ключевой проблемой анализа экспериментальных данных для физики высоких энергий и ядерной физики. Поток данных в современных экспериментах растет день ото дня, и трад…

Investigation of the radiation hardness of GaAs:Cr semiconductor detectors irradiated with fast neutrons at the reactor IBR-2 Open

U. Kruchonak, S. Abou El-Azm, M. V. Bulavin, G. Chelkov, M. I. Gostkin , et al. · 2020

Investigation of the semiconductor detectors properties under neutron irradiation is very important for their practical application. High-resistivity gallium arsenide detectors (GaAs:Cr) were irradiated with various fast neutron fluences i…

Helicity Amplitude Analysis of $\psi(3686) \to \Omega^- \bar{\Omega}^+$ Open

F. De Mori, M. Kuemmel, H. P. Wang, M. X. Luo, F. F. Sui , et al. · 2020

We present an analysis of the process $\\psi(3686) \\to \\Omega^- \\bar{\\Omega}^+$ ($\\Omega^-\\to K^-\\Lambda$, $\\bar{\\Omega}^+\\to K^+\\bar{\\Lambda}$, $\\Lambda\\to p\\pi^-$, $\\bar{\\Lambda}\\to \\bar{p}\\pi^+$) based on a data set …

Visualization of radiotracers for SPECT imaging using a Timepix detector with a coded aperture Open

V. A. Rozhkov, G. Chelkov, Isabel V. Hernández, Oleg V. Ivanov, D. Kozhevnikov , et al. · 2020

The work shows the ability to visualize radiotracers used in SPECT with a\nsystem based on a coded aperture mask and a hybrid pixel Timepix detector with\nthe CdTe sensor. Characterization of the system using X-rays and radioactive\nsource…

Radiation hardness of GaAs: Cr and Si sensors irradiated by electron beam Open

U. Kruchonak, S. Abou El-Azm, K. Afanaciev, G. Chelkov, M. Demichev , et al. · 2020

Measurement of the $e^+e^-\to\pi^+\pi^-\pi^0$ Cross Section from 0.7 GeV to 3.0 GeV via Initial-State Radiation Open

F. De Mori, H. X. Yang, M. Kuemmel, Z.P. Zhang, T. Hussain , et al. · 2019

The cross section of the process $e^+e^-\to\pi^+\pi^-\pi^0$ is measured with a precision of 1.6% to 25% in the energy range between $0.7$ and 3.0 GeV using the Initial State Radiation method. A data set with an integrated luminosity of $2.…

Performance and Molière radius measurements using a compact prototype of LumiCal in an electron test beam Open

H. Abramowicz, A. C. Abusleme Hoffman, K. Afanaciev, Y. Benhammou, Oleksandr Borysov , et al. · 2019

Monte Carlo simulation of the radiation transport in chromium compensated gallium arsenide detectors Open

Antonio Leyva Fabelo, J. A. Rubiera Gimeno, D. Leyva Pernía, Ibrahin Piñera Hernández, A. Meneses , et al. · 2019

Some results obtained with the use of Monte Carlo mathematical simulation of radiation transport in Timepix hybrid detectors based on chromium compensated gallium arsenide are presented in this contribution. The MCNPX, GEANT4, SRIM and MCC…

Analysis of radiation effects on some properties of GaAs:Cr and Si sensors exposed to a 22 MeV electron beam Open

Arianna G. Torres, Antonio Leyva‐Pérez, A. Zhemchugov, U. Kruchonak, S. Abou El-Azm , et al. · 2019

Nowadays, the experiments related to High Energy Physics and others fields demand the use of detectors with greater radiation resistance, and the novel material GaAs:Cr has demonstrated excellent radiation hardness compared with other semi…

CERN Yellow Reports: Monographs, Vol 1 (2019): Detector Technologies for CLIC Open

A. C. Abusleme Hoffman, G. Parès, T. Fritzsch, M. Rothermund, H. Jansen , et al. · 2019

The Compact Linear Collider (CLIC) is a high-energy high-luminosity linear electron-positron collider under development. It is foreseen to be built and operated in three stages, at centre-of-mass energies of 380 GeV, 1.5 TeV and 3 TeV, res…

Resources monitoring and automatic management system for multi-VO distributed computing system Open

J. Chen, I. Pelevanyuk, Yibo Sun, A. Zhemchugov, T Yan , et al. · 2017

Multi-VO supports based on DIRAC have been set up to provide workload and data management for several high energy experiments in IHEP. To monitor and manage the heterogeneous resources which belong to different Virtual Organizations in a u…

Response of Timepix detector with GaAs:Cr and Si sensor to heavy ions Open

S. M. Abu Al Azm, G. Chelkov, D. Kozhevnikov, A. Guskov, Alexei A. Lapkin , et al. · 2017

The response of the Timepix detector to neon ions with kinetic energy 77 and 158.4 MeV has been studied at the cyclotron U-400M of the JINR Flerov Laboratory of Nuclear Reaction. Sensors produced from gallium arsenide compensated by chromi…

Accelerator-Based Education Activities at JINR Open

Mikhail Nozdrin, Dmitriy Belozerov, К. Б. Гикал, Valery Kobets, S. Pakuliak , et al. · 2017

Professional practice is essential to train an engineer. However, many activities are impossible to run at high school, especially if they require sophisticated equipment such as accelerators. A series of practical engineering courses is b…

On the possibility to use semiconductive hybrid pixel detectors for study of radiation belt of the Earth. Open

A. Guskov, G.A. Shelkov, Petr Smolyanskiy, A. Zhemchugov · 2016

The scientific apparatus "Gamma-400" designed for study of hadron and\nelectromagnetic components of cosmic rays will be launched to an elliptic orbit\nwith the apogee of about 300 000 km and the perigee of about 500 km. Such a\nconfigurat…

BESIII production with distributed computing Open

Xianmei Zhang, T Yan, Xuanlei Zhao, Z T, Xiaolang Yan , et al. · 2015

Distributed computing is necessary nowadays for high energy physics experiments to organize heterogeneous computing resources all over the world to process enormous amounts of data. The BESIII experiment in China, has established its own d…

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