Search Results - "Caravita, R"
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Method for measuring positron number in high intensity nanosecond positron bunches based on Poisson statistic
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-06-2022)“…A novel method for the measurement of the number of positrons contained in intense positron bunches is presented. The technique is based on the Poisson…”
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Laser excitation of the n=3 level of positronium for antihydrogen production
Published in Physical review. A, Atomic, molecular, and optical physics (07-07-2016)“…We demonstrate the laser excitation of the n=3 state of positronium (Ps) in vacuum. A combination of a specially designed pulsed slow positron beam and a…”
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Generation of a bunched positron beam extracted nonadiabatically from a buffer-gas trap and focused in a free field region
Published in Physical review. Accelerators and beams (01-05-2023)“…Advanced spectroscopy experiments and new physics experiments with positronium atoms in vacuum will benefit from positronium production in an environment free…”
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Development of a Position-Sensitive Detector for Positronium Inertial Sensing Measurements
Published in Acta physica Polonica, A (01-09-2022)Get full text
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A low cost 2/3 of 4π detector for the study of Ps decay
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-10-2019)“…A large area low-cost detector for detailed studies of ortho-Positronium formation and decay is being designed. The detector will be made of four modules each…”
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A cryogenic tracking detector for antihydrogen detection in the AEgIS experiment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-04-2020)“…We present the commissioning of the Fast Annihilation Cryogenic Tracker detector (FACT), installed around the antihydrogen production trap inside the 1T…”
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AEgIS at ELENA: outlook for physics with a pulsed cold antihydrogen beam
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (28-03-2018)“…The efficient production of cold antihydrogen atoms in particle traps at CERN's Antiproton Decelerator has opened up the possibility of performing direct…”
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Positron bunching and electrostatic transport system for the production and emission of dense positronium clouds into vacuum
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-11-2015)“…We describe a system designed to re-bunch positron pulses delivered by an accumulator supplied by a positron source and a Surko-trap. Positron pulses from the…”
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A ∼100 μm-resolution position-sensitive detector for slow positronium
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (15-10-2019)“…In this work we describe a high-resolution position-sensitive detector for positronium. The detection scheme is based on the photoionization of positronium in…”
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CIRCUS: an autonomous control system for antimatter, atomic and quantum physics experiments
Published in EPJ quantum technology (01-12-2024)“…A powerful and robust control system is a crucial, often neglected, pillar of any modern, complex physics experiment that requires the management of a…”
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Developments for pulsed antihydrogen production towards direct gravitational measurement on antimatter
Published in Physica scripta (01-11-2020)“…A main scientific goal of the AE g ¯ IS experiment is the direct measurement of the Earth's local gravitational acceleration g on antihydrogen. The Weak…”
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Characterization of a transmission positron/positronium converter for antihydrogen production
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (15-09-2017)“…In this work a characterization study of forward emission from a thin, meso-structured silica positron/positronium (Ps) converter following implantation of…”
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Direct detection of antiprotons with the Timepix3 in a new electrostatic selection beamline
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-09-2016)“…We present here the first results obtained employing the Timepix3 for the detection and tagging of annihilations of low energy antiprotons. The Timepix3 is a…”
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Hybrid Imaging and Timing Ps Laser Excitation Diagnostics for Pulsed Antihydrogen Production
Published in Acta physica Polonica, A (01-02-2020)Get full text
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Development of nuclear emulsions with 1μm spatial resolution for the AEgIS experiment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-12-2013)“…The main goal of the AEgIS experiment at CERN is to test the weak equivalence principle for antimatter. We will measure the Earth's gravitational acceleration…”
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The AEgIS experiment
Published in Hyperfine interactions (2015)“…The AEgIS experiment is presently almost completely installed at CERN. It is currently taking data with antiprotons, electrons and positrons. The apparatus is…”
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AEg̅IS latest results
Published in EPJ Web of Conferences (2018)“…The validity of the Weak Equivalence Principle (WEP) as predicted by General Relativity has been tested up to astounding precision using ordinary matter. The…”
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Investigation of silicon sensors for their use as antiproton annihilation detectors
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-11-2014)“…We present here a new application of silicon sensors aimed at the direct detection of antinucleons annihilations taking place inside the sensor׳s volume. Such…”
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Particle tracking at 4 K: The Fast Annihilation Cryogenic Tracking (FACT) detector for the AEgIS antimatter gravity experiment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (2013)“…The AEgIS experiment is an international collaboration with the main goal of performing the first direct measurement of the Earth's gravitational acceleration…”
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Comparison of Planar and 3D Silicon Pixel Sensors Used for Detection of Low Energy Antiprotons
Published in IEEE transactions on nuclear science (01-12-2014)“…The principal aim of the AEgIS experiment at CERN is to measure the acceleration of antihydrogen due to Earth's gravitational field. This would be a test of…”
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