A. Romaniouk
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View article: A concept of the transition radiation detector for a hadron separation in a forward direction of the LHC experiments
A concept of the transition radiation detector for a hadron separation in a forward direction of the LHC experiments Open
Studying of hadron production in forward direction at the LHC energy has a great interest both for understanding of the fundamental QCD processes and also in applied areas such as the description of ultra-high energy cosmic particle intera…
View article: Registration of the transition radiation with GaAs detector: Data/MC comparison
Registration of the transition radiation with GaAs detector: Data/MC comparison Open
New developments of pixel detectors based on GaAs sensors offer effective registration of the transition radiation (TR) X-rays and perform simultaneous measurements of their energies and emission angles. This unique feature opens new possi…
View article: Measurement of the energy spectra and of the angular distribution of the Transition Radiation with a silicon strip detector
Measurement of the energy spectra and of the angular distribution of the Transition Radiation with a silicon strip detector Open
We plan to develop an advanced Transition Radiation Detector (TRD) for hadron identification in the TeV momentum range, based on the simultaneous measurement of the energies and of the emission angles of the Transition Radiation (TR) X-ray…
View article: Development of Transition Radiation Detectors for hadron identification at TeV energy scale
Development of Transition Radiation Detectors for hadron identification at TeV energy scale Open
Many modern and future accelerator and cosmic ray experiments require identification of particles with Lorentz γ-factor up to 10 4 and above. The only technique which reaches this range of Lorentz factors is based on the transition radiati…
View article: First measurements of the spectral and angular distribution of transition radiation using a silicon pixel sensor on a Timepix3 chip
First measurements of the spectral and angular distribution of transition radiation using a silicon pixel sensor on a Timepix3 chip Open
X-ray Transition radiation detectors (TRDs) are used for particle identification in both high energy physics and astroparticle physics. Particle identification is often achieved based on a threshold effect of the X-ray transition radiation…
View article: Test beam studies of possibilities to separate particles with gamma factors above 10<sup>3</sup>with straw based Transition Radiation Detector
Test beam studies of possibilities to separate particles with gamma factors above 10<sup>3</sup>with straw based Transition Radiation Detector Open
Measurements of hadron production in the TeV energy range are one of the tasks of the future studies at the Large Hadron Collider (LHC). The main goal of these experiments is a study of the fundamental QCD processes at this energy range, w…
View article: Measurements of angular distribution and spectrum of transition radiation with a GridPix detector
Measurements of angular distribution and spectrum of transition radiation with a GridPix detector Open
In recent years, developments of gaseous detectors based on a combination of electron multiplication gap in the gas and pixel readout chips as a part of the anode plane (GasPixel detectors) reached a level where they can offer unique oppor…
View article: arXiv : Search for Double Charged Particles as Direct Test for Dark Atom Constituents
arXiv : Search for Double Charged Particles as Direct Test for Dark Atom Constituents Open
The nonbaryonic dark matter of the Universe is assumed to consist of new stable particles. Stable particle candidates for cosmological dark matter are usually considered as neutral and weakly interacting. However stable charged leptons and…
View article: Search for Double Charged Particles as Direct Test for Dark Atom Constituents
Search for Double Charged Particles as Direct Test for Dark Atom Constituents Open
The nonbaryonic dark matter of the Universe is assumed to consist of new stable particles. Stable particle candidates for cosmological dark matter are usually considered as neutral and weakly interacting. However stable charged leptons and…
View article: Hybrid tracking detector based on semiconductor and gas technologies
Hybrid tracking detector based on semiconductor and gas technologies Open
\nNew Silicon-Gas Pixel Detector (SiGPD) is the result of the further development already proposed Gas-Pixel Detector (GPD). The only disadvantage of GPD was the uncertainty of the particle arriving time. The problem can be solved by addit…
View article: Silicon-Gas Pixel Detector
Silicon-Gas Pixel Detector Open
The proposed Silicon-Gas Pixel Detector (SGPD) combines the advantages of Silicon and Gas-pixel detectors (GPD). 7 micron space resolution and down to 0.2 degree both angles measurements are inside 10 mm thick and very low material detecto…
View article: Theory of X-Ray Transition Radiation from Graphene for Transition Radiation Detectors
Theory of X-Ray Transition Radiation from Graphene for Transition Radiation Detectors Open
We present the theory of transition radiation for monolayers in X-ray domain from the first principles and consider the pros and cons of using graphene-monolayer in transition radiation detectors.
View article: Test beam studies of the TRD prototype filled with different gas mixtures based on Xe, Kr, and Ar
Test beam studies of the TRD prototype filled with different gas mixtures based on Xe, Kr, and Ar Open
Towards the end of LHC Run1, gas leaks were observed in some parts of the\nTransition Radiation Tracker (TRT) of ATLAS. Due to these leaks, primary Xenon\nbased gas mixture was replaced with Argon based mixture in various parts.\nTest-beam…
View article: Some results of test beam studies of Transition Radiation Detector prototypes at CERN
Some results of test beam studies of Transition Radiation Detector prototypes at CERN Open
Operating conditions and challenging demands of present and future\naccelerator experiments result in new requirements on detector systems. There\nare many ongoing activities aimed to develop new technologies and to improve\nthe properties…
View article: Gas gain stabilisation in the ATLAS TRT detector
Gas gain stabilisation in the ATLAS TRT detector Open
The ATLAS (one of two general purpose detectors at the LHC) Transition Radiation Tracker (TRT) is the outermost of the three tracking subsystems of the ATLAS Inner Detector. It is a large straw-based detector and contains about 350,000 ele…
View article: Development of scanning technique for sTGC detectors production quality control
Development of scanning technique for sTGC detectors production quality control Open
The innermost station of the ATLAS muon end-cap system will be replaced during the forthcoming Phase-I upgrade of the ATLAS detector. The small-strip Thin Gap Chambers (sTGC) are supposed to operate at harsh radiation conditions of super L…
View article: Studies of the possibility to use Gas Pixel Detector as a fast trigger tracking device
Studies of the possibility to use Gas Pixel Detector as a fast trigger tracking device Open
Gas Pixel Detector (GPD) technology offers new possibilities, which make them very attractive for application in existing and future accelerator experiments and beyond. GPDs combine advantages of silicon and gaseous detectors. They can be …
View article: Visualization tool for X-ray scanner for sTGC detector production quality control
Visualization tool for X-ray scanner for sTGC detector production quality control Open
The ATLAS experiment at the Large Hadron Collider has an ambitious program of the detector upgrade to meet an expected rise of accelerator luminosity. The first large system which supposed to be installed in 2019 is the New Small Wheel (NS…
View article: Gas mixtures for quality control of the sTGC chambers
Gas mixtures for quality control of the sTGC chambers Open
sTGC chambers are designed to operate at super-LHC conditions and will be installed in place during Phase-I upgrade of the ATLAS muon spectrometer. These chambers will provide precise coordinate measurements of the charged particle tracks …