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The Orbit Measurement System for the CERN Extra Low Energy Antiproton Ring
/ Marqversen, Ole (CERN) ; Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Marco-Hernandez, Ricardo (Valencia U., IFIC) ; Molendijk, John (CERN) ; Ruffieux, Romain (CERN) ; Sanchez-Quesada, Jorge (CERN) ; Søby, Lars (CERN)
The CERN Extra Low ENergy Antiproton ring (ELENA) intended to decelerate anti-protons from the CERN Antiproton Decelerator from 100Mev/c to 13.7MeV/c, has been equipped with an orbit measurement system consisting of 10 horizontal and 10 vertical electrostatic pick-ups. Using charge amplifiers the signals are converted into sum and difference signals that, once digitalized, are down converted to baseband and used to calculate intensity independent beam positions. [...]
2018 - 3 p.
- Published in : 10.18429/JACoW-IBIC2017-TUPCF05
Fulltext: PDF;
In : 6th International Beam Instrumentation Conference, Grand Rapids, MI, USA, 20 -24 Aug 2017, pp.TUPCF05
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A Low-Noise Charge Amplifier for the ELENA Trajectory, Orbit, and Intensity Measurement System
/ Marco-Hernández, Ricardo (CERN) ; Baú, Marco (Brescia U. ; INFN, Brescia) ; Ferrari, Marco (Brescia U. ; INFN, Brescia) ; Ferrari, Vittorio (Brescia U. ; INFN, Brescia) ; Pedersen, Flemming (CERN) ; Søby, Lars (CERN)
A low-noise head amplifier has been developed for the extra low energy antiproton ring beam trajectory, orbit, and intensity measurement system at CERN. This system is based on 24 double-electrode electrostatic beam position monitors installed around the ring. [...]
2017 - 9 p.
- Published in : IEEE Trans. Nucl. Sci. 64 (2017) 2465-2473
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Prototyping of petalets for the Phase-II Upgrade of the silicon strip tracking detector of the ATLAS Experiment
/ Kuehn, S. (CERN) ; Benítez, V. (Barcelona, Inst. Microelectron.) ; Fernández-Tejero, J. (Barcelona, Inst. Microelectron.) ; Fleta, C. (Barcelona, Inst. Microelectron.) ; Lozano, M. (Barcelona, Inst. Microelectron.) ; Ullán, M. (Barcelona, Inst. Microelectron.) ; Lacker, H. (Humboldt U., Berlin) ; Rehnisch, L. (Humboldt U., Berlin) ; Sperlich, D. (Humboldt U., Berlin) ; Ariza, D. (DESY) et al.
In the high luminosity era of the Large Hadron Collider, the HL-LHC, the instantaneous luminosity is expected to reach unprecedented values, resulting in about 200 proton-proton interactions in a typical bunch crossing. To cope with the resultant increase in occupancy, bandwidth and radiation damage, the ATLAS Inner Detector will be replaced by an all-silicon system, the Inner Tracker (ITk). [...]
arXiv:1711.01594.-
2018-03-22 - 22 p.
- Published in : JINST 13 (2018) T03004
Fulltext: arXiv:1711.01594 - PDF; pdf - PDF; Fulltext from Publisher: PDF;
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The AD and ELENA orbit, trajectory and intensity measurement systems
/ Marco-Hernández, Ricardo (CERN ; Valencia U., IFIC) ; Alves, D (CERN) ; Angoletta, M E (CERN) ; Marqversen, O (CERN) ; Molendijk, J (CERN) ; Oponowicz, E (CERN ; Manchester U.) ; Ruffieux, R (CERN) ; Sánchez-Quesada, J (CERN) ; Søby, L (CERN)
This paper describes the new Antiproton Decelerator (AD) orbit measurement system and the Extra Low ENergy Antiproton ring (ELENA) orbit, trajectory and intensity measurement system. The AD machine at European Organization for Nuclear Research (CERN) is presently being used to decelerate antiprotons from 3.57 GeV/c to 100 MeV/c for matter vs anti-matter comparative studies. [...]
2017 - 24 p.
- Published in : JINST 12 (2017) P07024
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Sensors for the End-cap prototype of the Inner Tracker in the ATLAS Detector Upgrade
/ Benítez, V (Barcelona, Inst. Microelectron.) ; Ullán, M (Barcelona, Inst. Microelectron.) ; Quirion, D (Barcelona, Inst. Microelectron.) ; Pellegrini, G (Barcelona, Inst. Microelectron.) ; Fleta, C (Barcelona, Inst. Microelectron.) ; Lozano, M (Barcelona, Inst. Microelectron.) ; Sperlich, D (Freie U., Berlin) ; Hauser, M (Freiburg U.) ; Wonsak, S (Freiburg U. ; Liverpool U.) ; Parzefall, U (Freiburg U.) et al.
The new silicon microstrip sensors of the End-cap part of the HL-LHC ATLAS Inner Tracker (ITk) present a number of challenges due to their complex design features such as the multiple different sensor shapes, the varying strip pitch, or the built-in stereo angle. In order to investigate these specific problems, the “petalet” prototype was defined as a small End-cap prototype. [...]
2016 - 7 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 833 (2016) 226-232
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Prototyping of hybrids and modules for the forward silicon strip tracking detector for the ATLAS Phase-II upgrade
/ Kuehn, S (CERN) ; Benítez, V (Barcelona, Inst. Microelectron.) ; Fernández-Tejero, J (Barcelona, Inst. Microelectron.) ; Fleta, C (Barcelona, Inst. Microelectron.) ; Lozano, M (Barcelona, Inst. Microelectron.) ; Ullán, M (Barcelona, Inst. Microelectron.) ; Lacker, H (Humboldt U., Berlin) ; Rehnisch, L (Humboldt U., Berlin) ; Sperlich, D (Humboldt U., Berlin) ; Ariza, D (DESY) et al.
For the High-Luminosity upgrade of the Large Hadron Collider an increased instantaneous luminosity of up to 7.5 ⋅ $10^{34} cm^{−2} s^{−1}$, leading to a total integrated luminosity of up to 3000 $fb^{−1}$, is foreseen. The current silicon and transition radiation tracking detectors of the ATLAS experiment will be unable to cope with the increased track densities and radiation levels, and will need to be replaced. [...]
2017 - 27 p.
- Published in : JINST 12 (2017) P05015
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A New Orbit System for the CERN Antiproton Decelerator
/ Marco-Hernandez, Ricardo (CERN) ; Angoletta, Maria Elena (CERN) ; Ludwig, Michael (CERN) ; Molendijk, John (CERN) ; Pedersen, Flemming (CERN) ; Ruffieux, Romain (CERN) ; Sanchez-Quesada, Jorge (CERN) ; Søby, Lars (CERN)
This contribution will describe the new orbit system foreseen for the Antiproton Decelerator (AD) located at CERN. The AD decelerates antiprotons from 3.57 GeV/c down to 100 MeV/c, with an intensity ranging from 1×107 to 5×107 particles. [...]
2016 - 5 p.
- Published in : 10.18429/JACoW-IBIC2015-TUPB058
Fulltext: PDF;
In : International Beam Instrumentation Conference , Melbourne, Australia, 13 - 17 Sep 2015, pp.TUPB058
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