David Quirion
Spanish National Research Council
OpticsPhysicsElectronic engineeringSiliconDetector
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Publications 89
Low Gain Avalanche Detector (LGAD) is the baseline sensing technology of the recently proposed Minimum Ionizing Particle (MIP) end-cap timing detectors (MTD) at the Atlas and CMS experiments. The current MTD sensor is designed as a multi-pad matrix detector delivering a poor position resolution, due to the relatively large pad area, around 1 mm^2 and a good timing resolution, around 20-30 ps. Besides, in his current technological incarnation, the timing resolution of the MTD LGAD sensors is s...
#1A. García AlonsoH-Index: 17
#2E. CurrasH-Index: 3
Last. M. MeschiniH-Index: 85
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#1J. Duarte-Campderros (CERN)H-Index: 1
#2E. Curras (CERN)H-Index: 3
Last. M. Manna (CSIC: Spanish National Research Council)H-Index: 2
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Abstract Test beam results obtained with 3D pixel sensors bump-bonded to the RD53A prototype readout ASIC are reported. Sensors from FBK Italy and IMB-CNM (Spain) have been tested before and after proton-irradiation to an equivalent fluence of about 1 × 1016 ≠cm-2 (1 MeV equivalent neutrons). This is the first time that one single collecting electrode fine pitch 3D sensors are irradiated up to such fluence bump-bonded to a fine pitch ASIC. The preliminary analysis of the collected data shows no ...
3 CitationsSource
Abstract A silicon 3D detector with a single cell of 50 × 50 μ m2 was produced and evaluated for timing applications. The measurements of time resolution were performed for 90Sr electrons with dedicated electronics used also for determining time resolution of Low Gain Avalanche Detectors (LGADs). The measurements were compared to those with LGADs and also simulations. The studies showed that the dominant contribution to the timing resolution comes from the time walk originating from different in...
4 CitationsSource
#1Stefano TerzoH-Index: 71
#2M. ChmeissaniH-Index: 12
Last. D. Vazquez FurelosH-Index: 22
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#1M. Carulla (CSIC: Spanish National Research Council)H-Index: 7
#2A. Doblas (CSIC: Spanish National Research Council)H-Index: 1
Last. Y. Zhao (Santa Cruz Institute for Particle Physics)H-Index: 2
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Abstract LGAD detectors on 300 μ m thick high resistivity p-type substrates were proposed for the first time by IMB-CNM-CSIC. They are customized Avalanche Photodiodes (APD) to obtain a high electric field region confined close to the reversed junction. Therefore, only electrons generated by an incident particle passing through the detector and drifting to the n+ contact, start the impact ionization process. Thus, the collected charge is multiplied. The basic difference between APDs and LGADs is...
1 CitationsSource
#1G. Pellegrini (CSIC: Spanish National Research Council)H-Index: 33
#2M. Manna (CSIC: Spanish National Research Council)H-Index: 2
Last. David Quirion (CSIC: Spanish National Research Council)H-Index: 14
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Abstract The LHC is expected to reach luminosities up to 3000 fb − 1 and the innermost layer of the ATLAS upgrade plans to cope with higher occupancy and to decrease the pixel size. 3D silicon (3D-Si) sensors are a good candidate for the innermost layer of the ATLAS pixel upgrade since they exhibit good performance under high fluences and the new designs will have smaller pixel size to fulfill the electronics specifications. Detectors located at large η angles, far from the interaction point, wi...
1 CitationsSource
#1J. C. LangeH-Index: 84
#2G. GianniniH-Index: 2
Last. D. Vazquez FurelosH-Index: 22
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6 CitationsSource
Abstract Low Gain Avalanche Detectors (LGADs) are based on a n + + -p + -p-p + + structure where appropriate doping of multiplication layer (p + ) leads to high enough electric fields for impact ionization. Operation of these detectors in harsh radiation environments leads to decrease of gain attributed to the effective acceptor removal in the multiplication layer. In order to cope with that devices were produced where boron was replaced by gallium. The initial radiation hardness studies show a ...
3 CitationsSource
#1Rosa Letizia Zaffino (CSIC: Spanish National Research Council)H-Index: 7
#2Michael Seimetz (Polytechnic University of Valencia)H-Index: 15
Last. G. Pellegrini (CSIC: Spanish National Research Council)H-Index: 33
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Large-scale fabrication of targets for laser-driven acceleration of ion beams is a prerequisite to establish suitable applications, and to keep up with the challenge of increasing repetition rate of currently available high-power lasers. Here we present manufacturing and test results of large arrays of solid targets for TNSA laser-driven ion acceleration. By applying micro-electro-mechanical-system (MEMS) based methods allowing for parallel processing of thousands of targets on a single Si wafer...