Browsing Physics / Fizik by Department "İYTE, Fen Fakültesi, Fizik Bölümü"
Now showing items 1-20 of 214
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Affine dynamics with torsion
(Springer, 2016-03-01)In this study, we give a thorough analysis of a general affine gravity with torsion. After a brief exposition of the affine gravities considered by Eddington and Schrödinger, we construct and analyze different affine ... -
Aligning the CMS muon chambers with the muon alignment system during an extended cosmic ray run
(IOP Publishing, 2010)The alignment system for the muon spectrometer of the CMS detector comprises three independent subsystems of optical and analog position sensors. It aligns muon chambers with respect to each other and to the central silicon ... -
Alignment of the CMS muon system with cosmic-ray and beam-halo muons
(IOP Publishing, 2010)The CMS muon system has been aligned using cosmic-ray muons collected in 2008 and beam-halo muons from the 2008 LHC circulating beam tests. After alignment, the resolution of the most sensitive coordinate is 80 microns for ... -
Alignment of the CMS silicon tracker during commissioning with cosmic rays
(IOP Publishing, 2010)The CMS silicon tracker, consisting of 1440 silicon pixel and 15 148 silicon strip detector modules, has been aligned using more than three million cosmic ray charged particles, with additional information from optical ... -
Analysis of electronic parameters and interface states of boron dispersed triethanolamine/p-Si structure by AFM, I-V, C-V-f and G/ω-V-f techniques
(Elsevier, 2010-01)The electronic parameters and interface state properties of boron dispersed triethanolamine/p-Si structure have been investigated by atomic force microscopy, I-V, C-V-f and G/ω-V-f techniques. The surface topography and ... -
Area dependence and influence of crystal inhomogeneity on superconducting properties of Bi2212 mesa structures
(Elsevier, 2015-10)The rapid increase in applications of terahertz waves requires new techniques to obtain continuous wave terahertz sources. Mesa structures fabricated from high-Tc superconductor Bi2Sr2CaCu2O8+δ (Bi2212) single crystal have ... -
Bilayer SnS2: Tunable stacking sequence by charging and loading pressure
(American Physical Society, 2016-03-03)Employing density functional theory-based methods, we investigate monolayer and bilayer structures of hexagonal SnS2, which is a recently synthesized monolayer metal dichalcogenide. Comparison of the 1H and 1T phases of ... -
Calibration of the CMS drift tube chambers and measurement of the drift velocity with cosmic rays
(IOP Publishing, 2010)This paper describes the calibration procedure for the drift tubes of the CMS barrel muon system and reports the main results obtained with data collected during a high statistics cosmic ray data-taking period. The main ... -
Carbon nanotube diameter tuning using hydrogen amount and temperature on SiO2/Si substrates
(Springer, 2010-07)Carbon nanotubes (CNTs) were grown on thin iron (Fe) films on SiO 2/Si substrates by chemical vapor deposition (CVD) at four different hydrogen (H2)/methane (CH4) ratios at temperatures ranging from 925 to 1000°C. The ... -
Characterization of CdTe growth on GaAs using different etching techniques
(Springer, 2015-09-26)CdTe buffer layers which were grown on (211)B GaAs by molecular beam epitaxy were subjected to two different etch treatments to quantify the crystal quality and dislocation density. The optical properties and thicknesses ... -
Charged particle multiplicities in pp interactions at √s = 0.9, 2.36, and 7TeV
(Springer, 2011)Measurements of primary charged hadron multiplicity distributions are presented for non-single-diffractive events in proton-proton collisions at centre-of-mass energies of √s = 0.9, 2.36, and 7TeV, in five pseudorapidity ... -
Charged particle transverse momentum spectra in pp collisions at √s = 0:9 and 7 TeV
(Springer, 2011)The charged particle transverse momentum (pT) spectra are presented for pp collisions at √s = 0:9 and 7TeV. The data samples were collected with the CMS detector at the LHC and correspond to integrated luminosities of 231 ... -
Cleavage induced rows of missing atoms on ZnTe (110) surface
(American Physical Society, 2013-02)Cleavage induced rows of linear vacancy structures on p-doped ZnTe (110) surface are studied at room temperature by using cross-sectional scanning tunneling microscopy (X-STM). The oscillating contrast superimposed on the ... -
Close binary system GO Cyg
(Elsevier, 2012-04)In this study, we present long term photometric variations of the close binary system GO Cyg. Modelling of the system shows that the primary is filling Roche lobe and the secondary of the system is almost filling its Roche ... -
CMS data processing workflows during an extended cosmic ray run
(IOP Publishing, 2010)The CMS Collaboration conducted a month-long data taking exercise, the Cosmic Run At Four Tesla, during October-November 2008, with the goal of commissioning the experiment for extended operation. With all installed detector ... -
CoCrMo alloy treated by floating potential plasma assisted nitriding and plasma based ion implantation: Influence of the hydrogen content and of the ion energy on the nitrogen incorporation
(Elsevier, 2010-06)Nitriding was performed on a medical grade CoCrMo alloy at 400°C in N2 or N2-H2 atmosphere at a working pressure of 0.84Pa for 2h. Various surface treatment techniques were used to incorporate nitrogen into the CoCrMo ... -
Commissioning and performance of the CMS pixel tracker with cosmic ray muons
(IOP Publishing, 2010)The pixel detector of the Compact Muon Solenoid experiment consists of three barrel layers and two disks for each endcap. The detector was installed in summer 2008, commissioned with charge injections, and operated in the ... -
Commissioning and performance of the CMS silicon strip tracker with cosmic ray muons
(IOP Publishing, 2010)During autumn 2008, the Silicon Strip Tracker was operated with the full CMS experiment in a comprehensive test, in the presence of the 3.8 T magnetic field produced by the CMS superconducting solenoid. Cosmic ray muons ... -
Commissioning of the CMS experiment and the cosmic run at four tesla
(IOP Publishing, 2010)The CMS Collaboration conducted a month-long data-taking exercise known as the Cosmic Run At Four Tesla in late 2008 in order to complete the commissioning of the experiment for extended operation. The operational lessons ... -
Commissioning of the CMS High-Level Trigger with cosmic rays
(IOP Publishing, 2010)The CMS High-Level Trigger (HLT) is responsible for ensuring that data samples with potentially interesting events are recorded with high efficiency and good quality. This paper gives an overview of the HLT and focuses on ...
