160 research outputs found
Characterisation of a Thin Fully Depleted SOI Pixel Sensor with High Momentum Charged Particles
Get PDFThis paper presents the results of the characterisation of a thin, fully depleted pixel sensor manufactured in SOI technology on high-resistivity substrate with high momentum charged particles. The sensor is thinned to 70 m and a thin phosphor layer contact is implanted on the back-plane. Its response is compared to that of thick sensors of same design in terms of signal and noise, detection efficiency and single point resolution based on data collected with 300 GeV pions at the CERN SPS. We observe that the charge collected and the signal-to-noise ratio scale according to the estimated thickness of the sensitive volume and the efficiency and single point resolution of the thinned chip are comparable to those measured for the thick sensors
Studies of Vertex Tracking with SOI Pixel Sensors for Future Lepton Colliders
No full textThis paper presents a study of vertex tracking with a beam hodoscope consisting of three layers of monolithic pixel sensors in SOI technology on high-resistivity substrate. We study the track extrapolation accuracy, two-track separation and vertex reconstruction accuracy in pion-Cu interactions with 150 and 300 GeV/c pions at the CERN SPS. Results are discussed in the context of vertex tracking at future lepton colliders.This paper presents a study of vertex tracking with a beam hodoscope consisting of three layers of monolithic pixel sensors in SOI technology on high-resistivity substrate. We study the track extrapolation accuracy, two-track separation and vertex reconstruction accuracy in pion-Cu interactions with 150 and 300 GeV/c pions at the CERN SPS. Results are discussed in the context of vertex tracking at future lepton colliders
Characterisation of a Pixel Sensor in 0.20 micron SOI Technology for Charged Particle Tracking
No full textThis paper presents the results of the characterisation of a pixel sensor manufactured in OKI 0.2 micron SOI technology integrated on a high-resistivity substrate, and featuring several pixel cell layouts for charge collection optimisation. The sensor is tested with short IR laser pulses, X-rays and 200 GeV pions. We report results on charge collection, particle detection efficiency and single point resolution.This paper presents the results of the characterisation of a pixel sensor manufactured in OKI 0.2 micron SOI technology integrated on a high-resistivity substrate, and featuring several pixel cell layouts for charge collection optimisation. The sensor is tested with short IR laser pulses, X-rays and 200 GeV pions. We report results on charge collection, particle detection efficiency and single point resolution
Characterisation of a thin, fully-depleted, back-illuminated SOI pixel sensor with soft X-ray radiation
No full textTotal dose effects on deep-submicron SOI technology for Monolithic Pixel Sensor development
No full textWe developed and characterized Monolithic pixel detectors in deep-submicron Fully Depleted (FD) Silicon On Insulator (SOI) technology. This paper presents the first studies of total dose effects from ionizing radiation performed on single transistor test structures. This work shows how the substrate bias condition during irradiation heavily affects the resulting radiation damage
Tests of monolithic pixel detectors in SOI technology with depleted substrate
No full textThis paper reviews the R\&D program on monolithic pixel sensors in silicon-on-insulator technology carried out by LBNL, the University and INFN, Padova and SCIPP-UCSC. The main issues addressed by the R\&D, back-gating and radiation tolerance, are discussed together with the preliminary results from the characterization of the latest chip in this technology. (C) 2010 Elsevier B.V. All rights reserved
The infant's miscellany [electronic resource] : or easy lessons, extracted from different authors. On a new plan. Intended to facilitate the attainment of the English language to the youngest readers, by teaching them not only to read, but likewise to understand clearly what they read.
No full textAccording the 'Advertisement' to 'Miscellaneous lessons' by Ellin Devis, that book was based on this one, with the implication that they share the same author.With an index and short questions.Below imprint: Price two shillings.Electronic reproduction.English Short Title Catalog,Reproduction of original from British Library
Proposta di nuovi strumenti per comprendere come funziona la cognizione
Get PDFCredo che la causa principale per cui non si conoscono i principi generali di come funziona la conoscenza, e probabilmente anche il motivo per il quale non si sono ancora progettate e costruite macchine efficienti capaci di intelligenza artificiale, non sia l’eccessiva complessità dei fenomeni cognitivi, ma il fatto che sono mancati gli strumenti concettuali e metodologici corretti per affrontare il problema. È un po’ come se si cercasse di edificare la fisica senza il concetto di numero, o se si cercasse di comprendere l’origine delle specie senza aver compreso il meccanismo di selezione naturale.
In questo lavoro propongo alcuni nuovi strumenti metodologici e concettuali, che sembrano offrire la concreta possibilità di capire la logica dei processi cognitivi.
Propongo una nuova metodologia per trattare, in modo preciso, i concetti di struttura, di schema, e per eseguire delle speciali operazioni di analisi strutturale. Queste operazioni permettono di passare da rappresentazioni concrete ad altre più astratte in modo naturale, senza forzature. Munito di questi strumenti mi è possibile proporre una definizione per i concetti di regola, di regolarità e di proprietà emergente. Analizzando alcuni aspetti importanti delle regole propongo di distinguerle in operazionali e associative. Propongo che siano le regole associative ad assumere un ruolo dominante nell'attività cognitiva. Propongo inoltre una definizione per il concetto di problema. Alla fine illustro, in forma succinta, un possibile modello generale di sistema cognitivo
Proposal for the realization of an artificial cognitive system for research purposes and applications
No full text<p>This proposal illustrates the project for the realization of an artificial cognitive system, designed primarily for experimental use but which may be the basis to build more advanced systems.</p
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