Exploració per tema "Acceleradors de partícules"

Ara es mostren els items 21-40 de 47

    • LHC optics commissioning: A journey towards 1% optics control 

      Persson, Tobias; Carlier, Felix; Coello de Portugal-Martinez Vazquez, Jaime Maria; Garcia-Tabares, Ana; Langner, Andy; Maclean, Ewen Hamish; Malina, Lukas; Skowronski, Piotr; Salvant, Benoit; Tomas García, Rogelio; Garcia Bonilla, Alba-Carolina (American Physical Society (APS), 2017-06-19)
      Article
      Accés obert
      Since 2015 the LHC has been operating at 6.5 TeV. In 2016 the ß -functions at the interaction points of ATLAS and CMS were squeezed to 0.4 m. This is below the design ß * = 0.55 ¿ ¿ m at 7 TeV, and has been instrumental ...

    • Mechanical Design of the HGCal Wedges with Thermal Gradient 

      Ramos García, María Teresa (Universitat Politècnica de Catalunya, 2022-05-03)
      Treball Final de Grau
      Accés obert
      After the discovery of the Higgs Boson, the purpose of the world's largest and most powerful particle accelerator, the Large Hadron Collider (LHC), seemed to have been achieved. Despite the fact that the Standard Model ...

    • Microwave measurements of dielectric material to be used in the CERN Future Circular Collider study 

      Diez Comas, Albert (Universitat Politècnica de Catalunya, 2020-09-03)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Sincrotró ALBA / Institut de Ciència de Materials de Barcelona / Institut de Física d’Altes Energies / European Organization for Nuclear Research
      The main objective of this project is to design, fabricate and test a resonator capable of measuring the required properties of different dielectric samples in the microwave region for a temperature range of 20 – 100 K ...

    • Microwave measurements of material properties for CERNs Future Circular Collider 

      Abu Helalah, Ebrahim (Universitat Politècnica de Catalunya, 2021-06)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Sincrotró ALBA

    • New approach to LHC optics commissioning for the nonlinear era 

      Maclean, Ewen Hamish; Tomas García, Rogelio; Carlier, Felix; Camillocci, Matteo Solfaroli; Dilly, Joschua; Coello de Portugal-Martinez Vazquez, Jaime Maria; Fol, Elena; Fuchsberger, Kajetan; Giovannozzi, Massimo; Hofer, Michael; Malina, Lukas; Persson, Tobias; Skowronski, Piotr; Wegscheider, Andreas (American Physical Society (APS), 2019-06-21)
      Article
      Accés obert
      In 2017, optics commissioning strategy for low- ß * operation of the CERN Large Hadron Collider (LHC) underwent a major revision. This was prompted by a need to extend the scope of beam-based commissioning at high energy, ...

    • New local optics measurements and correction techniques for the LHC and its luminosity upgrade 

      Coello de Portugal-Martinez Vazquez, Jaime Maria; Tomas García, Rogelio; Hofer, Michael (American Physical Society (APS), 2020-04-06)
      Article
      Accés obert
      As the beams at the interaction points (IPs) of circular colliders are pushed toward smaller sizes, the correction of the magnetic field errors in high- ß regions become increasingly important, but also challenging. This ...

    • Numerical simulation of the alba synchrotron light source cooling system response for failure prevention 

      Escaler Puigoriol, Francesc Xavier; Casas, Joan; Colldelram, Carles; Quispe, Marcos; Prieto Moline, María Montserrat (2016)
      Comunicació de congrés
      Accés obert
      The ALBA Synchrotron Light Source cooling system is designed with a common return pipe that interconnects the four consumption rings. Such configuration is believed to compromise its optimal operation. To understand its ...

    • Object tracking with multiple cameras using real world coordinates 

      Mas Leszkiewicz, Xavier (Universitat Politècnica de Catalunya, 2015-02)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Technische Universität Berlin
      [ANGLÈS] This thesis covers the design and implementation of a Gaussian Mixture Probability Hypothesis Density Filter. A new approach is used on this filter, instead of using the object detections in pixel coordinates, a ...

    • Optimització del patró de rotació d'un escàner de fil 

      Copetudo Espinosa, Alejandro (Universitat Politècnica de Catalunya, 2016-06-23)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   CERN Beam Instrumentation Group
      Aquest treball s’emmarca dins d’un projecte de col·laboració entre el departament d’Enginyeria Mecànica de la UPC i el departament Beams and Instrumentation del CERN sobre el disseny d’un nou escàner de fil per al ...

    • Optimization of a linac based source of bremsstrahlung radiation 

      Garrido Tamm, Cristian (Universitat Politècnica de Catalunya, 2010-06)
      Projecte/Treball Final de Carrera
      Accés obert
      It is well known that, when accelerated electrons from a linear accelerator interact with a high atomic number (Z) target material, electromagnetic radiation (bremsstrahlung) is produced. In the present work some aspects ...

    • Ordering kinetics evaluation of FeAl powders 

      Cinca i Luis, Núria; Isalgué Buxeda, Antonio; Auguet Sangrá, Carlota E.; Concustell, Amadeu; Cano, I. G.; Guilemany Casadamon, Josep Maria; Fauth, F. (2017-12-01)
      Article
      Accés obert
      In this study, time resolved X-ray diffraction experiments using synchrotron X-ray radiation have been performed to get insight on the time and temperature dependent atomic ordering of an intermetallic Fe-40Al (at.%) ...

    • Potential impedance reduction by REBCO coated conductors as beam screen coating for the future circular hadron collider 

      Krkotic, Patrick; Tagdulang, Nikki; Calatroni, Sergio; O'Callaghan Castellà, Juan Manuel; Pont Montaner, Montserrat (2022-12)
      Article
      Accés obert
      The Future Circular Collider study creates a conceptual design for a post-LHC particle accelerator using 16T superconducting dipoles to achieve collision energies of up to 100TeV in a 90km circumference ring. A copper-coated ...

    • Procesado de datos cristalográficos procedentes de luz de sincrotrón: Implementación en Matlab 

      Salgado Funes, David (Universitat Politècnica de Catalunya, 2016-06)
      Treball Final de Grau
      Accés obert
      This project develops a MatLab application to process experimental data obtained from Advanced Photon Source. The application implements a Graphical User Interface to allow researchers to perform data processing without ...

    • Prototipo de dosímetro ambiental para neutrones rápidos. 

      Albert Lopez, Adria (Universitat Politècnica de Catalunya, 2019-01-17)
      Treball Final de Grau
      Accés obert
      En este texto se describe el proceso de diseño y construcción de un prototipo de dosímetro para neutrones rápidos. Se divide en cuatro etapas: recopilación de datos de dosímetros comerciales, diseño conceptual, construcción ...

    • Prototipo de sistema monitor de dosis de neutrones para la instalación de neutrones por tiempo de vuelo (n_TOF) del CERN 

      Juarros I Cebrian, Víctor (Universitat Politècnica de Catalunya, 2019-01-17)
      Treball Final de Grau
      Accés obert
      El presente trabajo trata de conseguir realizar una estimación de la respuesta dosimétrica para campos pulsados del prototipo de dosímetro LINrem01, desarrollado en la Universidad Politécnica de Cataluña. El prototipo, que ...

    • Proyecto de blindaje de un acelerador de electrones con finalidad de radioterapia 

      Jiménez Gordon, David (Universitat Politècnica de Catalunya, 2010-06)
      Projecte/Treball Final de Carrera
      Accés obert
      El presente proyecto pretende dar cobertura a la reciente revisión de las normativas vigentes (DIN 6847-2, septiembre de 2008 y NCRP Report nº 151, diciembre de 2005) sobre el blindaje de instalaciones de radioterapia ...

    • Race-track microtron with pulse-to-pulse beam energy switch 

      Koubychine Merkulov, Youri Alexandrovich; Shvedunov, Vasiliy; Vladimirov, Ivan (2017)
      Comunicació de congrés
      Accés obert
      A race-track microtron with a few beam orbits can be an alternative to a standard electron linear accelerator in a number of applications in which high beam power is not needed, like radiation therapy, industrial radiography ...

    • Renovation of the electrical wiring and devices in the access point 3 of the SPS 

      Gomis Doménech, Marta (Universitat Politècnica de Catalunya, 2019-07-12)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      The present Bachelor’s dissertation expounds the electrical study of the low voltage installation renovation in the access point 3 of CERN’s (European Organisation for the Nuclear Research) 2nd largest accelerator: the SPS ...

    • Results of the RAMI analyses performed for the IFMIF accelerator facility in the engineering design phase 

      Bargalló Font, Enric; Arroyo Macias, José Manuel; Abal López, Javier; Dies Llovera, Javier; Blas del Hoyo, Alfredo de; Tapia Fernández, Carlos; Moya, Joaquin; Ibarra Sanchez, Angel (2015-10-01)
      Article
      Accés obert
      This paper presents a summary of the RAMI (Reliability Availability Maintainability Inspectability) analyses done for the IFMIF (International Fusion Materials Irradiation Facility) Accelerator facility in the Engineering ...

    • Search for high-energy neutrinos from bright GRBs with ANTARES 

      Albert, A.; André, Michel; Anghinolfi, Marco; Anton, G.; Avgitas, T.; Bertin, V.; Bormuth, R.; Puricelli, Stefano; Coniglione, R.; Gleixner, A; Lefèvre, Dominique; Michael, Turner; Pellegrino, Carlo; Piattelli, P.; Sanchez Losa, Agustín; Schnabel, J.; Trovato, A.; Zúñiga Román, Juan (2017-07-01)
      Article
      Accés obert
      Gamma-ray bursts are thought to be sites of hadronic acceleration, thus neutrinos are expected from the decay of charged particles, produced in p¿ interactions. The methods and results of a search for muon neutrinos in the ...