Search Results - "Josa, M. I"
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The network of photodetectors and diode lasers of the CMS Link alignment system
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-07-2018)“…The central feature of the CMS Link alignment system is a network of Amorphous Silicon Position Detectors distributed throughout the muon spectrometer that are…”
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Motion of CMS detector and mechanical structures during Magnet Cycles and Stability Periods from 2008 to 2013 as observed by the Link Alignment System
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-03-2016)“…Magnet Cycles and Stability Periods of the CMS Experiment are studied with the Alignment Link System data recorded along the 2008–2013 years of operation. The…”
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Effects of prolonged illumination with white light on the photo-response of carbon-doped hydrogenated amorphous silicon photo-detectors
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-11-2012)“…A study of the photo-response behaviour of carbon-doped hydrogenated amorphous silicon photo-detectors over 2800h of continuous illumination with white light…”
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Multipoint alignment monitoring with amorphous silicon position detectors in a complex light path
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-12-2010)“…This document presents an application of the new generation of amorphous silicon position detecting (ASPD) sensors to multipoint alignment. Twelve units are…”
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Effects of the gamma-ray irradiation on the optical absorption of pure silica core single-mode fibres in the visible and NIR range
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-02-2005)“…Optical absorption induced by photon radiation was evaluated for several commercial pure silica core, single mode, optical fibres. The study was performed for…”
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Results on neutron and gamma-ray irradiation of electrolytic tiltmeters
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-10-2004)“…We report on irradiation studies done to a sample of high-precision electrolytic tiltmeters with gamma-rays, up to a maximum dose of 150kGy, and neutrons, up…”
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A simple method for short distance measurements
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-01-2004)“…A novel, accurate and inexpensive device for measuring short distances is presented. Data taken with a very simple prototype are presented and its performance…”
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A survey of the induced currents on the photodetectors used in the CMS Link alignment system
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-04-2020)“…This document presents an overview of the induced photocurrents in the Amorphous Silicon Position Detectors used in the network of diode lasers and photo…”
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Study of CMOS image sensors for laser beam position detection
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-02-2003)“…We report on the study made on commercial CMOS image sensors in order to determine their feasibility for light beam position reconstruction. Measurements of…”
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Performance test of the CMS link alignment system
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-10-2002)“…A first global test of the CMS Alignment System was performed at the I4 hall of the CERN ISR tunnel. Positions of the network, reproducing a set of points in…”
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Effect of neutron and gamma-ray irradiation on the transmittance power of glasses and glues
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-11-2002)“…LHC, working at the expected nominal luminosity, will induce an extremely high irradiation in the CMS experiment. The CMS alignment system uses optical…”
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Semitransparent amorphous silicon sensors for the CMS alignment: an in-depth study
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-02-2000)“…Semitransparent amorphous silicon sensors have been proposed as the 2D positioning sensors for the link system of the CMS alignment. An in-depth study of the…”
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Effects of radiation and their consequences for the performance of the forward calorimeters in the CMS experiment
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (2002)“…The experiments at the Large Hadron Collider (LHC) will have to deal with unprecedented radiation levels. In the large-rapidity regions, close to the beam…”
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Results on photon and neutron irradiation of semitransparent amorphous-silicon sensors
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-12-2000)“…Semitransparent amorphous-silicon sensors are basic elements for laser 2D position reconstruction in the CMS multipoint alignment link system. Some of the…”
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A compensating quartz fibre calorimeter for small angle calorimetry at the LHC
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-05-1997)“…We present the design of a compensating quartz fibre calorimeter, made of a unique active section, for the specific physics requirements of the small angle…”
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First test of tiltmeters for the alignment system of CMS
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-07-1999)“…In this note we present first tests done with the tiltmeters proposed as the key elements of the Laser Level systems to be used in the CMS alignment system…”
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Gamma irradiation of semitransparent amorphous silicon sensors
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (2000)“…Semitransparent amorphous silicon sensors are the key elements for laser light 2D position reconstruction in the CMS alignment system. Some of them have to…”
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First test results of semitransparent amorphous silicon sensors for the link system of the CMS alignment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-04-1999)“…Semitransparent amorphous silicon sensors have been proposed as the 2D positioning sensors for the link system of the CMS alignment. We have developed a…”
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Study of the Effects of Radiation at the CERN Gamma Irradiation Facility on the CMS Drift Tube Muon Detector for HL-LHC
Published in 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) (01-10-2019)“…To sustain and extend its discovery potential, the Large Hadron Collider (LHC) will undergo a major upgrade in the coming years, referred to as High Luminosity…”
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