O. B. Dogan
A5055624289- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Neutrino Physics Research
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- VLSI and Analog Circuit Testing
- Astrophysics and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Solar and Space Plasma Dynamics
- Photocathodes and Microchannel Plates
- Linguistics and Cultural Studies
- Cultural and Sociopolitical Studies
- Turkish Literature and Culture
- Distributed and Parallel Computing Systems
- Atomic and Subatomic Physics Research
Ankara Yıldırım Beyazıt University
2023
Boğaziçi University
2008-2020
European Organization for Nuclear Research
2011-2012
MSD (Serbia)
2011
Fisheries Research Institute of Slovenia
2011
Wallenberg Wood Science Center
2011
National Science and Technology Council
2011
Turkish Atomic Energy Authority
2011
Leverhulme Trust
2011
Royal Society
2011
We have searched for solar axions or other pseudoscalar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) setup. Whereas we previously reported results from CAST with evacuated magnet bores (Phase I), setting limits on lower mass axions, here report where were filled 4He gas II) of variable pressure. The introduction generates a refractive photon mγ, thereby achieving maximum possible conversion rate those axion masses ma match mγ. With 160 different...
The ATLAS TRT barrel is a tracking drift chamber using 52,544 individual tubular tubes. It one part of the Inner Detector, which consists three sub-systems: pixel detector spanning radius range 4 to 20 cm, semiconductor tracker (SCT) from 30 52 and transition radiation (TRT) 56 108 cm. covers central pseudo-rapidity region |η|< 1, while endcaps cover forward backward eta regions. These systems provide combination continuous with many measurements in tubes (or straws) electron identification...
The ATLAS TRT end-cap is a tracking drift chamber using 245,760 individual tubular tubes. It part of the tracker which consist barrel and two end-caps. end-caps cover forward backward pseudo-rapidity region 1.0 < |η| 2.0, while central η 1.0. system provides combination continuous with many measurements in tubes (or straws) electron identification based on transition radiation from fibers or foils interleaved between straws themselves. Along other sub-system, namely Pixel detector Semi...
The ATLAS (A Toroidal LHC ApparatuS) Inner Detector provides charged particle tracking in the centre of experiment at Large Hadron Collider (LHC). consists three subdetectors: Pixel Detector, Semiconductor Tracker (SCT), and Transition Radiation (TRT). This paper summarizes tests that were carried out final stage SCT+TRT integration prior to their installation ATLAS. combined operation performance SCT TRT barrel endcap detectors was investigated through a series noise tests, by recording...
The ATLAS inner detector consists of three sub-systems: the pixel spanning radius range 4cm-20cm, semiconductor tracker at radii from 30 to 52 cm, and transition radiation (TRT), tracking 56 107 cm. TRT provides a combination continuous with many projective measurements based on individual drift tubes (or straws) electron identification fibres or foils interleaved between straws themselves. This paper describes off electronics for as well portion data acquisition (DAQ) system.
1. European Organization for Nuclear Research (CERN), Gen`eve, Switzerland2. DAPNIA, Centre d’´Etudes Nucl´eaires de Saclay (CEA-Saclay), Gif-sur-Yvett e, France3. Technische Universita¨t Darmstadt, IKP, Germany4. Max-Planck-Institut fu¨r extraterrestrische Physik, Garching, Germany5. Instituto F´isica y Altas Energ´ias, Universidad Zaragoza, Spain6. Enrico Fermi Institute and KICP, University of Chicago, IL, USA7. Aristotle Thessaloniki, Greece8. National Center Scientific “Demokritos”,...
The CAST (CERN Axion Solar Telescope) experiment is searching for solar axions by their conversion into photons inside the magnet pipe of an LHC dipole. analysis data recorded during first phase with vacuum in pipes has resulted most restrictive experimental limit on coupling constant to photons. In second phase, operating a buffer gas order extent sensitivity higher axion masses. We will present results $^{4}{\rm He}$ taking as well system upgrades that have been operated last year adapt...
We have started the development of a detector system, sensitive to single photons in eV energy range, be suitably coupled one CAST magnet ports. This system should open window on possible detection low Axion Like Particles emitted by sun. Preliminary tests involved cooled photomultiplier tube via Galileian telescope and switched 40 m long optical fiber. has reached limit background level alone ideal conditions, two solar tracking runs been performed with it at CAST. Such measurement never...
Araştırmada Türk tarihinde önemli bir yere sahip olan Dede Korkut Hikâyeleri ve Oğuz Kağan destanında geçen tabiatüstü unsurları, olay örgülerine, zaman-mekân unsurlarına, kahramanların özelliklerine değinilerek mukayeseli incelemesi yapılmıştır. Hikayeleri destanından hareketle milletinin kültürü, köklü tarihi, inancı ve yaşayışından izler aktarılmaya çalışılmıştır. Tabiatüstü unsurlar birçok olay, durum kişi üzerinden ortaya konulmaktadır. Savaş meydanlarındaki sıra dışı galibiye,...
The CAST experiment at CERN is the only running solar axion telescope. first results obtained so far with — PHASE I presented, which compete best astrophysically derived limits of axion‐to‐photon coupling. ongoing II as well scheduled upgrades, improve discovery potential CAST, are discussed.