679 research outputs found
IV-TH INT. WORKSHOP ON RESISTIVE PLATE CHAMBERS AND RELATED DETECTORS
No full textCONTRIBUTED AND INVITED PAPERS RELATED TO RESISTIVE PLATE CHAMBERS AND SIMILAR DETECTOR
Silicon Photo Multipliers Detectors Operating in Geiger Regime: an Unlimited Device for Future Applications
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Light Concentrators for Silicon Photomultipliers
No full textAbstractPhotosensitive devices represent a key solution for several current and future categories of experiments in which photon detection is the crucial point for the observation of physical phenomena. Astro particle experiments for instance, one of the most promising observation channels for High Energy Physics, typically study energetic phenomena in which charged particles originating from the interactions or decays of primary particles radiate Cherenkov or fluorescence light, which is then detected by photosensitive devices. In these fields of applications, the Silicon Photomultipliers (SiPM) devices based on the limited Geiger-mode avalanche (generally G-APD, Geiger Avalanche Photons Detectors), are extensively under study. Unfortunately, applications of SiPMs are very limited by their small sensitive surfaces. In order to overcome the limits of the small dimensions of the sensitive area of SiPM devices, different solutions are reported. In particular it is discussed the use of Optical Concentrators with the correct refraction index, characteristic and geometry for the improvement of the sensitive surface dimensions of a SiPM device
High Gain Hybrid Photomultipliers Based on Solid State p-n Junctions in Geiger Mode and Their use in Astroparticle Physics
No full textAbstractIn astroparticle physics photomultiplier tubes play a crucial role in the detection of fundamental physical processes. After about one century of standard technology (photocathode and dynode electron multiplication chain), the recent strong development of modern silicon devices has brought to maturity a new generation of photodetectors based on an innovative, high-quality, cost effective technology. In particular the most promising development in this field is represented by the rapidly emerging CMOS p-n Geigermode avalanche photodiode technology (G-APD or SiPM), for high-speed single photon detection with high gain and linearity. Most applications will require collection of light from even larger surfaces or volumes, so it is necessary to increase the active surface and the angular acceptance of SiPMs while keeping high sensitivity. The main purpose of this research is, therefore, to provide an attractive solution to overcome this problem. The idea is to realize a hybrid detector (Vacuum Silicon PhotoMulTiplier,VSiPMT), where the dynodes structure of a classical Vacuum PhotoMultiplier Tube (VPMT) is replaced by an array of G-APDs, which collects the photoelectrons emitted by photocathode and acts as an electron multiplier
The Vacuum Silicon Photomultiplier Tube (VSiPMT): A new version of a hybrid photon detector
No full textThe Importance of a Deep Knowledge of LabVIEW Environment and Techniques in Order to Develop Effective Applications
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A Method for Humidity extraction from the Gas Mixture of the RPC detectors in the ATLAS Experiment
No full textErratum to: Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector (The European Physical Journal C, (2016), 76, 2, (87), 10.1140/epjc/s10052-016-3910-6)
No full textIn the original paper, Fig. 4 contains the wrong label preliminary. The label has been fixed, while none of the results have changed.(Table Presented.). © 2017, The Author(s)
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