Oscar Alonso Casanovas
Avalanche photodiodeElectronicsElectronic engineeringCMOSDetector
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Publications 57
#1Oscar Alonso Casanovas (University of Barcelona)H-Index: 6
#2Nil Franch (University of Barcelona)H-Index: 3
Last. Àngel Diéguez Barrientos (University of Barcelona)H-Index: 24
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Abstract A miniature internet of things (IoT)-based point-of-care testing (PoCT) fluorescence reader, able to perform both intensity and time-resolved measurements of different fluorescent tags, is presented. This low cost platform has been conceived for performing tests in low-resource and remote settings, displaying versatile performance and yet simple operation. It consists on an external case of 43 × 30 × 42 mm3 (built in a 3D-printer) where all the elements are fixed, including some basic o...
Abstract A DEpleted P-channel Field Effect Transistor (DEPFET) based pixel detector was developed for the Belle II VerteX Detector (VXD). It is designed to achieve a good impact parameter resolution better than 15 μm at the very high luminosity conditions of this experiment. In the first half of 2018 four final production modules have been deployed in the commissioning run of the detector and their performance is discussed.
#1J. CanalsH-Index: 5
Last. Andreas WaagH-Index: 1
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#1Sergio Moreno (University of Barcelona)
#2Oscar Alonso Casanovas (University of Barcelona)H-Index: 6
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High Voltage-CMOS (HV-CMOS) sensors are the sensor technology of choice for the pixel tracker in the Mu3e experiment at PSI in Switzerland. These particular sensors allow the integration of the readout electronics with the sensor, having potentially 100% fill-factor. In this contribution, design details and simulation results of sampling circuits integrated with the sensor to enable low power 4D tracking will be presented. Particular attention was considered to minimize the timing errors due to ...
#1Nil FranchH-Index: 3
#2J. CanalsH-Index: 5
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This work presents a first prototype for a new approach to microscopy: a system basing its resolving power on the light emitters instead of the sensors, without using lenses. This new approach builds on the possibility of making LEDs smaller than current technology sensors, offering a new approach to microscopy we plan on developing towards superresolution. The microscope consists on a SPAD based camera, a 8x8 LED array with 5x5 μm LEDs distributed with a pitch of 10 μm, and discrete driving ele...
#1B. SchwenkerH-Index: 13
#2F. AbudinénH-Index: 3
Last. Svd CollaborationsH-Index: 1
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2 CitationsSource
Last. Oscar Alonso CasanovasH-Index: 6
view all 3 authors...
#1Peter Kodys (Charles University in Prague)H-Index: 97
#2F. Abudinén (MPG: Max Planck Society)H-Index: 3
Last. Svd CollaborationsH-Index: 1
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Abstract The Belle II experiment comes with a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric e + e − collider with energies tuned to ϒ ( 4 S ) resonance s = 10 . 588 GeV. The accelerator has successfully completed the first phase of commissioning in 2016 and the first electron–positron collisions in Belle II took place in April 2018. Belle II features a newly designed silicon vertex detector based on DEPFET pixel and double-sided strip layers. Curre...
Abstract The Belle II experiment will run with a reduced beam asymmetry and a factor of 40 higher instantaneous luminosity compared to the Belle experiment. To cope with this and to be able to perform high precision vertex measurements for charge conjugation parity violating processes, a pixel detector based on DEPFET technology will be installed in the center of Belle II. Its basic properties and the DAQ chain are presented in this article.
#1J. CanalsH-Index: 5
#2Nil FranchH-Index: 3
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We describe the integration of techniques and technologies to develop a Point-of-Care for molecular diagnosis PoC-MD, based on a fluorescence lifetime measurement. Our PoC-MD is a low-cost, simple, fast, and easy-to-use general-purpose platform, aimed at carrying out fast diagnostics test through label detection of a variety of biomarkers. It is based on a 1-D array of 10 ultra-sensitive Single-Photon Avalanche Diode (SPAD) detectors made in a 0.18 μm High-Voltage Complementary Metal Oxide Semic...