DSpace Arşivi :: by Yazar "Denizli, Haluk" değerine göre listeleniyor

Yazar "Denizli, Haluk" seçeneğine göre listele

Listeleniyor 1 - 20 / 64

Angular Dependence Study of the Cosmic Ray Flux at 900 Meters above Sea Level
(2018) Yilmaz, Ali; Oyulmaz, Kaan Yüksel; Denizli, Haluk
In this study, the zenith angle distribution of the ground level cosmic ray flux has been measured at 900 meters above the sea level by using the developed prototype detector. The measurements have been done in Experimental Particle Physics Laboratory, Department of Physics, Abant Izzet Baysal University (AIBU) Bolu. The method used to carry out the experiment is by using simultaneous particle hits on two scintillator boxes that are arranged in tower mode then counts will accumulate in the scintillator counter boxes. This detector prototype provides a simpler, cheaper and suitable alternative to the common cosmic ray detectors for the detection of particles at ground level. The orientation of module is in the south-east direction. The fluxes and rates were measured for different zenith angles between 0o and 90o. The attenuation effect of the architectural components on the measured cosmic ray flux was carried out by using GEANT4 simulation program and this effect was taken into account in the given results.
Anormal Dörtlü-Ayar Etkileşme Sabitlerinin Duyarlılığının Gelecek Hadron-Hadron Çarpıştırıcılarında Araştırılması
(2021) Şenol, Abdulkadir; Denizli, Haluk; Oyulmaz, Kaan Yüksel; Helveci, Ceren; Karadeniz, Özgün
Standart Model`de (SM) teorik olarak öngörülen Higgs bozonunun özelliklerinin, 2012 yılında CERN?de ATLAS ve CMS deney grupları tarafından keşfedilen skaler bozonu betimleyen deneysel sonuçlar ile tam olarak uyumlu olması parçacık fiziğinde yeni bir dönemin kapılarını açmıştır. Bu uyuma rağmen, Elektro-zayıf simetri kırılma mekanizmasının ayrıntılı olarak çözülmesi gerekmektedir. SM'nin gerçekten çok yüksek enerji ölçeklerine kadar geçerli bir teori olduğunu kanıtlamak için, ya elektro-zayıf sektörünü fazla kısıtlamalı ve yapısını birinci ilmek seviyesi (NLO) düzeltmeleri düzeyinde test etmeli ya da Higgs mekanizmasının olası dinamik açıklaması için doğrudan bir kanıt bulmalıyız. Bu mekanizmanın önemli bileşenlerinden biri, Higgs alanının öz-etkileşimleridir ki bu etkileşmeler mekanizmanın altında yatan yapı ile ilgili ipuçları içermektedir. Fiziksel bir Higgs bozonunun saçılması için, bu öz-etkileşim kuplajlarının ölçümleri oldukça zordur; yani üçlü Higgs kuplajının ölçümü uygulanabilir görünmekle birlikte, kuartik kuplajların ölçülmesi umutsuzdur. Bununla birlikte, Higgs alanı aynı zamanda elektro-zayıf (EW) ayar bozonlarının boyuna modlarını da içerir ki bunlar Goldstone bozonları olarak adlandırılır. Boyuna modların saçılması, EW ayar grubunun Abelian olmayan yapısından gelen enine EW ayar bozonlarının karşılık gelen saçılması ile kaplanır. Fenomenolojik olarak, bunlar arasında ayrım yapmak oldukça zordur. Bu durumda, SM'nin ayar ve Higgs sektörleri, vektör bozon saçılması (VBS) ve üçlü-boson üretimi üzerinde çalışarak incelenebilir. Bu üretim süreçlerinde SM tahminlerinden sapmalar, SM'nin ötesi fiziğe önemli ipuçları verecektir. Bu bağlamda, etkili alan teorisi çerçevesinde tanımlanan ZZ?? ve Z??? dörtlü köşeleri ile ilgili boyut-8 anormal kuplajlarının duyarlılıklarını, pp ?Z?? sinyal sürecinde Z-bozonunun yüklü leptonlara bozunması kanalını göz önüne alarak HL-LHC, HE-ve FCC-hh?de detektör etkilerini de dikkate alarak araştırdık. Yeniden yapılandırılmış ve l^+ l^- ?? değişmez kütles sistemini, üçlü ayar bağlantılarında anormallik olmaması hipotezi altında anormal dörtlü ayar kuplaj parametrelerini sınırlamak için kullandık. Sonuçlarımız, %95 C.L.'de fT8/?4 ve fT9/?4 (fT0/?4, fT1/?4 ve fT2/?4) anormal dörtlü ayar kuplajlarının duyarlılığını FCC-hh için Lint = 30 ab?1 intergre edilmiş ışınlık ile sistematik hatalar olmadan mevcut deneysel sınırlardan bir iki (bir) derece daha iyi olduğunu göstermektedir.
Antidot effects on micromagnetic behavior of Py ferromagnetic samples
(Elsevier, 2016) Yetiş, Hakan; Denizli, Haluk
The coercivity and magnetic hysteresis behavior of permalloy (Py) samples have been studied in the presence of square arrays of the circular antidots. The open source OOMMF micromagnetic software is used to numerically solve the Landau-Lifshitz-Gilbert (LLG) equation. In calculations, Py samples are designed in such a way that they include a different number of antidot in an array which possess the same total surface area. In this way, the total Py region stayed unchanged despite the growing number of antidots in a fixed sample size. We found significant increase in the coercive field for the sample with the smallest antidot spacing. The results are discussed within the framework of superdomain (SD) and superdomain wall (SDW) formation. (C) 2016 Elsevier B.V. All rights reserved.
Antidot shape dependence of switching mechanism in permalloy samples
(Elsevier, 2017) Yetiş, Hakan; Denizli, Haluk
We study antidot shape dependence of the switching magnetization for various permalloy samples with square and triangular arrays of nanometer scale antidots. The remnant magnetization, squareness ratio, and coercive fields of the samples are extracted from the hysteresis loops which are obtained by solving the Landau-Lifshitz-Gilbert (LLG) equation numerically. We find several different magnetic spin configurations which reveal the existence of superdomain wall structures. Our results are discussed in terms of the local shape anisotropy, array geometry, and symmetry properties in order to explain the formation of inhomogeneous domain structures. (C) 2016 Elsevier B.V. All rights reserved.
Bioengineering functional copolymers. IX. synthesis and characterization of stimuli-responsive poly(N-isopropylacrylamide-co-N-vinyl-2-pyrrolidone) and its Cu(II) complexes
(2008) Rzaev, Zakir M. O.; Denizli, Betül Kırcı; Denizli, Haluk
Radical copolymerization of N-isopropylacrylamide (NIPA) with N-vinyl-2-pyrrolidone (VP) were carried out with 2,2’- azobisisobutyronitrile (AIBN) as an intiator in N,N’-dimethylformamide solution at $65^ oC$ under nitrogen atmosphere. Cu(II)–copolymer macrocomplexes were prepared by incorporation of copolymers with copper sulfate in aqueous solution at $40^ oC$. Structure and composition of the obtained copolymers, and the formation of coordinated Cu(II)- complexes between amide VP unit and Cu(II) ions were studied by FTIR spectroscopy, DSC and TGA-DTG methods, as well as by the electrical conductivity measurements. Compositon of the copolymers synthesized in a wide range of monomer feed ratios were determined by FTIR and $^ 1H (^ {13}C)$ NMR–DEPT-135 spectroscopy. The monomer reactivity ratios were determined by Fineman-Ross, Kelen-Tüdös and non-linear regression methods. It was observed that studied monomer pair has some tendency to alternation in the chosen monomer feed ratios due to formation of intermolecular interaction through H-bonding and N→O=C coordination. The copolymers predominantly show amorphous structure while their Cu(II)–macrocomplexes exhibit crystalline phase. The conductive properties of the synthesized Cu(II)–poly(VP-co-NIPA) complexes was also discussed.The synthesized poly(NIPA-co-VP)s show temperature sensitiveness ($T _s$) and higher glass-transition temperature ($T _g$) and thermal stability, polyelectrolyte and stimuli-responsive (temperature- and pH-sensitive) behavior, and can be attributed to the class of bioengineering functional copolymers useful for application in various gene- and bioengineering processes, drug delivery systems, and biomacromolecule conjugations.
Bioengineering functional copolymers. XI. Copper(II)-poly(N-vinyl-2-pyrrolidone-co-N-isopropylacrylamide) macrocomplexes
(Wiley, 2008) Rzayev, Zakir M. O.; Denizli, B. Kırcı; Denizli, Haluk
A series of poly(N-vinyl-2-pyrrolidone-co-N-isopropylacrylamide)s, poly(VP-co-NIPA) copolymers with different compositions were prepared by radical copolymerization of VP and NIPA in N,N'-dimethylformamide at 65 degrees C using 2,2'-azobisisobutyronitrile as initiator. Cu(II)-copolymer macrocomplexes were prepared by complexation of the copolymers with copper sulfate in aqueous solution at 40 degrees C. The structure and composition of the copolymers, and the formation of coordinated Cu(H)complexes between amide VP units and Cu2+ ions, were studied by FTIR spectroscopy, DSC and TGA-DTG in addition to electrical conductivity. Studies on the relationship between composition and thermal behavior showed that the values of T-g and T-d of the copolymers and their coordinated macrocomplexes increased with increasing VP content. The copolymers predominantly show amorphous structure while their Cu(II)-macrocomplexes show the presence of a crystalline phase. The conductive properties of the synthesized Cu(II)-poly(VP-co-NIPA) complexes are also discussed. (C) 2008 Wiley Periodicals, Inc.
Comparison of resolving time values of different scintillation detectors in the coincidence experiments
(Springer, 2013) Ermiş, E. E.; Çeliktaş, Cüneyt; Denizli, Haluk
The resolving time values of the coincidence spectrometers composed by NaI(Tl) inorganic, BC408 type and BC418 type organic scintillation detectors were obtained in this work. For this purpose, fast-fast coincidence measurements were carried out. Best timing performance was obtained by BC418 type plastic scintillator for various source-detector distances.
Constraints on higgs effective couplings in ''Hvv'' over-bar production of CLIC at 380 GeV
(Hindawi Ltd, 2018) Denizli, Haluk; Şenol, Abdülkadir
The potential of the e(+)e(-) -> vvH over barH process in the first stage of CLIC considering center-of-mass energy of 380GeV and assuming the baseline integrated luminosity of 500 fb(-1) is examined to probe CP-conserving dimension-six operators in a model-independent Standard Model effective field theory framework. In the analysis, a detailed fast simulation on e(+)e(-) -> vvH over barH signal processes and dominant backgrounds is performed including parton showering with PYTHIAand detector simulation based on ILD type detector with DELPHES in MadGraph. The obtained best limits on (c) over bar (HB), (c) over bar (W) = -(c) over bar (B), and (c) over bar (HW) are [- 4.82; 1.53] x 10(-2), [- 5.11; 4.13] x 10(-3), and [- 6.58; 5.55] x 10(-3), respectively.
CP-violating Higgs-gauge boson couplings in H nu(nu)over-bar production at three energy stages of CLIC
(Springer, 2020) Karadeniz, Özgün; Şenol, Abdulkadir; Oyulmaz, Kaan Yüksel; Denizli, Haluk
A phenomenological study of CP-violating dimension-six operators via the e+e-->nu nu over bar H process is performed in a model-independent Standard Model effective field theory framework at all energy stages of CLIC using the updated baseline integrated luminosities. All signal and relevant background events are generated in MadGraph and passed through PYTHIA for parton showering and hadronization at parton level. Detector effects are considered via tuned CLIC detector cards in Delphes. Since we reconstruct the Higgs boson from a pair of b-jets, limits on CP-violating dimension-six couplings are obtained at three b-tagging working points: tight, medium and loose defined in the CLIC Delphes card for all three energy stages of CLIC. Our best 95 % C.L. limits at the loose working point (90 % b-tagging efficiency) on cHW and cHB are [-7.0x10-3 & x37e;7.0x10-3]. Considering a 0.3 % systematic uncertainty from possible experimental sources worsens the limits on these couplings by a factor of two.
Electron-muon identification by atmospheric shower and electron beam in a new eas detector concept
(IOP Publishing Ltd., 2015) İori, Maurizio; Denizli, Haluk; Yılmaz, Ali; Ferrarotto, Fabio; Russ, James
We present results demonstrating the time resolution and mu/e separation capabilities of a new concept. for an EAS detector capable of measuring cosmic rays arriving with large zenith angles. This kind of detector has been designed to be part of a large area (several square kilometer) surface array designed to measure ultra high energy (10-200 PeV) tau neutrinos using the Earth-skimming technique. A criterion to identify electron-gammas is also shown and the particle identification capability is tested by measurements in coincidence with the KASKADE-GRANDE experiment in Karlsruhe, Germany.
Electron-muon identification by atmospheric shower in a new concept of an EAS detector
(Elsevier Science Bv, 2012) Iori, M.; Arslan, E.; Denizli, Haluk; Kaya, M.; Yılmaz, Ali; Russ, James
We show the test results for TOF resolution and mu/e separation capabilities of a prototype element (Iori and Sergi, 2008 [1]), intended for deployment in an array capable of measuring large zenith angle cosmic rays as well as detecting the signature of Ultra High Energy tau neutrino interactions using the Earth skimming strategy (Fargion et al., 2004 [2], Feng et al., 2002 [3], Beacom et al., 2003 [4], Zas, 2005 [5]). The module was designed to recognize single particles and determine the direction of motion (up/down) and measure the trajectory angles. It uses two pairs of scintillator counters, named towers, each composed by two tiles (20 x 20 cm(2), 1.4 cm thick), separated by 160 cm. Each tile is read by one low voltage R5783 Hamamatsu photomultiplier (PMT). Two PMT boxes are attached to a metal structure that defines the axis of the array. Each tile is embedded in a PVC box which also contains the PMT. The PMT has excellent time resolution (approximate to 400 ps) for good TOE precision. The PMT signal was digitized by the MATAQ board in coincidence with KASCADE-GRANDE (KG) shower Delagnes and Breton, 2001 [6]. (C) 2012 Published by Elsevier B.V.
Energy cutoff effect in CORSIKA on the detected particles of pi pi(0) decay channel
(Canadian Science Publishing, Nrc Research Press, 2018) Yılmaz, Şeyma Atik; Yılmaz, Ali; Denizli, Haluk; Oyulmaz, Kaan Yüksel
CORSIKA (COsmic Ray SImulations for Kascade) has various features in the creation of the extensive air showers with several characteristics where the users can configure the input card to achieve the desired result. ECUT is a parameter defined as the low energy cutoff of the particle kinetic energy for hadrons, muons, electrons, and photons. We investigate the effect of the different ECUT values on the detected particles in 10(7) - 5 x 10(8) GeV primary particle energy range where pi(-)pi(0) decay channel chosen with 5 km shower development length. The selected ECUT values in this study are 0.05 and 0.1 GeV for both hadrons and muons and 0.05 GeV for electrons and photons. The effect of the reducing by half on the energy cutoff value is studied for the detector array located on an inclined plane, which is planned for upward tau detection.
FCC physics opportunities: Future circular collider conceptual design report volume 1
(Springer New York LLC, 2019) Abada, A.; Abbrescia, M.; AbdusSalam, S.S.; Abdyukhanov, Ildar; Abelleira Fernandez J.; Denizli, Haluk
We review the physics opportunities of the Future Circular Collider, covering its e+e-, pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of electroweak, Higgs and strong interactions, the top quark and flavour, as well as phenomena beyond the Standard Model. We highlight the synergy and complementarity of the different colliders, which will contribute to a uniquely coherent and ambitious research programme, providing an unmatchable combination of precision and sensitivity to new physics. © 2019, The Author(s).
FCC-ee: The Lepton Collider: Future Circular Collider Conceptual Design Report Volume 2
(Springer Verlag, 2019) Abada, A.; Abbrescia, M.; AbdusSalam, S.S.; Abdyukhanov, Ildar; Abelleira, Fernandez Jose; Denizli, Haluk
In response to the 2013 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) study was launched, as an international collaboration hosted by CERN. This study covers a highest-luminosity high-energy lepton collider (FCC-ee) and an energy-frontier hadron collider (FCC-hh), which could, successively, be installed in the same 100 km tunnel. The scientific capabilities of the integrated FCC programme would serve the worldwide community throughout the 21st century. The FCC study also investigates an LHC energy upgrade, using FCC-hh technology. This document constitutes the second volume of the FCC Conceptual Design Report, devoted to the electron-positron collider FCC-ee. After summarizing the physics discovery opportunities, it presents the accelerator design, performance reach, a staged operation scenario, the underlying technologies, civil engineering, technical infrastructure, and an implementation plan. FCC-ee can be built with today’s technology. Most of the FCC-ee infrastructure could be reused for FCC-hh. Combining concepts from past and present lepton colliders and adding a few novel elements, the FCC-ee design promises outstandingly high luminosity. This will make the FCC-ee a unique precision instrument to study the heaviest known particles (Z, W and H bosons and the top quark), offering great direct and indirect sensitivity to new physics. © 2019, The Author(s).
FCC-hh: The Hadron Collider: Future Circular Collider conceptual design report volume 3
(Springer Heidelberg, 2019) Abada, Aoueb; Abbrescia, Marcello; AbdusSalam, Shehu S.; Abdyukhanov, Ildar; Abelleira, Fernandez Jose; Denizli, Haluk; Oyulmaz, Kaan Yüksel; Şenol, Abdulkadir
In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100TeV. Its unprecedented centre of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries.
Feasibility studies for the measurement of time-like proton electromagnetic form factors from p p¯ ? µ+µ? at PANDA at FAIR
(Springer, 2021) Barucca, G.; Davi, F.; Lancioni, G.; Mengucci, P.; Montalto, L.; Natali, P. P.; Paone, N.; Denizli, Haluk; Er, Nuray; Yılmaz, Ali; Keskin, U.
This paper reports on Monte Carlo simulation results for future measurements of the moduli of time-like proton electromagnetic form factors, vertical bar G(E)vertical bar and vertical bar G(M)vertical bar, using the (p) over barp -> mu(+)mu(-) reaction at PANDA (FAIR). The electromagnetic form factors are fundamental quantities parameterizing the electric and magnetic structure of hadrons. This work estimates the statistical and total accuracy with which the form factors can be measured at PANDA, using an analysis of simulated data within the PandaRoot software framework. The most crucial background channel is (p) over barp -> pi(+)pi(-), due to the very similar behavior of muons and pions in the detector. The suppression factors are evaluated for this and all other relevant background channels at different values of antiproton beam momentum. The signal/background separation is based on a multivariate analysis, using the Boosted Decision Trees method. An expected background subtraction is included in this study, based on realistic angular distributions of the background contribution. Systematic uncertainties are considered and the relative total uncertainties of the form factor measurements are presented.
Gözlemlenen Duş Ürünlerinden Tau-Nötrino Enerjisinin Bulunması İçin Gerekli Tablonun Oluşturulması Ve Zaman Bilgisi İle Duş Gelişiminin Yapılandırılması
(2017) Denizli, Haluk; Yilmaz, Ali
Çok yüksek enerjili kozmik ıs¸ınların tespiti Astroparçacık ?zi?gi alanında önemli bir çalıs¸madır. Dus¸lar ço?gunlukla farklı enerjilerde ve farklı yönlerde hareket eden biles¸enlerden (hadronik, elektromanyetik) olus¸urlar. Nötrinolar, nötronlar veya fotonlar gibi yüksüz parçacıklar yön bilgilerini tas¸ırlar. Nötrinoların yer kabu?gu içerisinde izledikleri yol dünya çapının 1/13 kadarlık bir kısmı oldu?gu zaman dünyanın bir ucundan di?ger ucuna geçmeleri mümkün olur. \"Earth Skimming\" stratejisi olarak tanımlanan yüklü akım etkiles¸imleri ile tau nötrinosu tarafından üretilen tau leptonunun yeryüzüne çıkarken olus¸turdu?gu yatay ve yukarı yönlü dus¸ların incelenmesi, TAUWER projesinin temelinde yer almaktadır. Nötrino dus¸larının gözleminde genellikle havada olus¸an bozunmalar üzerinde durulurken, özgün bir çalıs¸ma olan yer kabu?gu içerisinden geçerek olus¸an dus¸ların incelenmesi, aynı zamanda istenmeyen kaynaklar ile olus¸acak etkiles¸imlerden de arındırmak için oldukça etkili bir yöntemdir. Tau nötrinolarının enerji ve parçacık yo?gunlu?gu ile dus¸ların elektromanyetik ve hadronik biles¸enlerinin da?gılımlarını ilis¸kilendirmek ve dus¸ parçacıklarının zaman bilgileri ileyöntespitiniyapmakamacıyla;CORSIKAsimülasyonprogramıkullanılarak,tauleptonunun 5 farklı bozunma kanalında, 4 farklı dus¸ gelis¸im mesafesi ve 5 farklı enerji için ürün tabloları elde edilip, analizleri yapılmıs¸tır. CORSIKA üretimleri belirlenen enerji, bozunma modları ve farklı dus¸ gelis¸im mesafeleri için e?gimli da?g yüzeyine dizilmis¸ belirli bir geometriye sahip dedektörler için uygulanmıs¸tır. Bu analiz sonuçları TAUWER projesinde kurulacak dedektör diziliminin optimizasyonu, konumu, da?gılımı ile ilgili ve farklı dus¸ karakterleri (enerji, dus¸ gelis¸im mesafesi, bozunum modu) için tetiklemenin belirlenmesi gibi konularda ileriye yönelik kararların alınmasında yol gösterici bir nitelik tas¸ımaktadır. Sonuçolaraktaunötrinolarınyerkabu?guileetkiles¸mesisonucundaolus¸anparçacık dus¸unungözlemlenmesineyönelikbenzetimleriyapılan5farklıbozunummodu,4farklı dus¸ gelis¸im mesafesi ve 5 farklı enerji için THIN OFF opsiyonunda 900 adet ve THIN ON opsiyonunda ise yaklas¸ık 8000 adet üretim yapılarak benzetim kütüphaneleri elde edilmis¸tir. Yapılan analizler sonucunda benzetimleri yapılmıs¸ dus¸ların zenit açılarına 0.0035, azimutal açılarına ise 0.0055 en az sapma ile ulas¸ılabilmektedir.
Graph-based algorithm for the understanding of failures in the ATLAS infrastructure
(IOP Publishing, 2023) Uribe, Gustavo A.; Tortajada, Ignacio Asensi; Sanchez, Carlos Solans; Rummler, Andre; Oyulmaz, Kaan Yüksel; Denizli, Haluk
The ATLAS Technical Coordination Expert System is a knowledge-based application which describes and simulates the ATLAS experiment based on its components and their relationships with differing levels of granularity but with an emphasis on general infrastructure. It facilitates the sharing of knowledge and improves the communication among experts with different backgrounds and domains of expertise. The developed software has become essential for the planning of interventions as it gives easily insight into their consequences. Furthermore, it has also proven to be useful for exploring the most effective ways to improve the ATLAS operation and reliability by identifying points of failure with significant impact. The underlying database describes more than 13,000 elements with 89,000 relationships among them. It combines information from diverse domains such as detector control and safety systems, gas and water supplies, cooling, ventilation, cryogenics, and electricity distribution. As the most recent addition, a tool to identify the most probable cause of a failure state has been developed. This paper discusses the graph-based algorithm currently implemented by that tool and shows its behaviour based on the parameters entered by the user. An example in form of a real failure event is given which demonstrates the potential of the Expert System for understanding major failures faster in urgent situations.
HE-LHC: The high-energy large Hadron collider: Future circular collider conceptual design report volume 4
(Springer Verlag, 2019) Abada, A.; Abbrescia, M.; AbdusSalam, S.S.; Abdyukhanov, Ildar; Abelleira, Fernandez Jose; Denizli, Haluk
In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100 km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100 TeV. Its unprecedented centre-of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries. © 2019, The Author(s).
How do different locations, floors and aspects influence indoor radon concentrations? An empirical study using neural networks for a university campus in Northwestern Turkey
(Sage Publications Ltd, 2013) Atik, Şeyma Yılmaz; Yetiş, Hakan; Denizli, Haluk; Evrendilek, Fatih
Indoor radon (Rn-222) concentrations were measured at a 10-min interval during October 2011 and January 2012. The monitoring followed a randomised and repeated pattern of experimental design, and was carried out at six faculty buildings of the Abant Izzet Baysal University, on five floor levels and two aspect directions (south vs. north) using an AlphaGUARD P30 Radon Monitor. The University campus area located in northwestern Turkey is near the North Anatolian Fault, a major active right lateral-moving strike-slip fault which runs along the transform boundary between the Eurasian Plate and the Anatolian Plate. Best artificial neural networks (ANNs) emulating indoor Rn-222 levels were selected as a function of air temperature (T-a), air pressure (P-a), relative humidity (RH), T-a by RH interaction, local time, location, floor and aspect. Elevated levels of indoor Rn-222 concentrations were measured at the south-facing offices and on the first floor levels of the building. Lower concentrations were found on the upper floor levels. Out of 27 ANNs, GFF-1-B-L and MLP-2-B-L performed best and could be contributing to the 35.6% and 87.2% of variations in spatio-temporal dynamics of indoor Rn-222 levels as a function of location or floor level and aspect, respectively, in addition to T-a, P-a, RH, T-a by RH interaction and time.

Yazar "Denizli, Haluk" seçeneğine göre listele

Sayfa Başına Sonuç

Sıralama seçenekleri