G. Khatri

Spectrometry of captured highly charged ions produced following antiproton annihilations

F. P. Gustafsson, Marco Volponi, J. Zieliński, A. Asare et autres

We report the first capture and time-of-flight spectrometry of highly charged ions (HCIs) produced following annihilations of trapped antiprotons in a Penning-Malmberg trap. A multistep nested-trap technique was developed at the AEḡIS experiment at CERN to trap and identify the annihilation-linked ions …

ch, pl, lv, kr, us, at, de, it, no, gb (code pays fourni par la source)

Measurement of nanoampere beam intensities at FAIR

Thomas Sieber, Harald Braeuning, Marcus Schwickert, Lorenzo Crescimbeni et autres

Like standard beam transformers the cryogenic current comparator (CCC) measures the intensity of particle beams via the azimuthal magnetic field. The superior performance of the CCC derives from a superconducting magnetometer (SQUID - Superconducting Quantum Interference Device), which detects fields in the …

Gun and Collector Development on the Electron Cooler Test Stand (ECTS)

G. Khatri, Alexandre Frassier, Jean Cenede, Adriana Rossi et autres

The electron cooler of the Antiproton Decelerator (AD) at CERN, that can operate with an electron beam of up to 2.4 A at 27 keV, is scheduled for replacement during the upcoming Long Shutdown 3 (LS3). A newly designed electron gun and …

ch (code pays fourni par la source)

Spectrometry of Captured Highly Charged Ions Produced Following Antiproton Annihilations

F. P. Gustafsson, Marco Volponi, J. Zieliński, A. Asare et autres

We report a proof-of-principle study demonstrating the first capture and time-of-flight spectrometry of highly charged ions (HCIs) produced following antiproton annihilations in a Penning-Malmberg trap. A multi-step nested-trap technique was developed using the \aegis\ experiment to identify annihilation-linked captured ions. The trapping …

AEgIS Experiment at CERN: Design and Commissioning of SARA (Scintillator Assemblies to Reveal Annihilations)

Philippe Le Conte, G. Consolati, M.C. Prata, Michael Berghold et autres

SARA is the system of plastic scintillators coupled with silicon photomultipliers that will take part in the AEgIS experiment at CERN, measuring the time-of-flight of antihydrogen as it falls through a moiré deflectometer. Its development focused on simplicity, versatility and economy of …

Positron-Positronium Converters in Reflection and Transmission Geometry for Gravitational Experiments with Antihydrogen using Moiré Deflectometry

Riley Ferguson, Sara Campos, M. Auzins, Michael Berghold et autres

Abstract In the context of the Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEgIS) located at CERN, positron-positronium converters with a high positron-positronium conversion efficiency have been designed in both reflection and transmission geometries. The converters utilize nanochanneled silicon target technology with positron conversion …

it, at, de, lv, cz, no, pl, ch, in, gb (code pays fourni par la source)

Laser Cooling Positronium with Broadband Laser Pulses

R. Caravita, Sara Campos, M. Auzins, Michael Berghold et autres

Abstract The first successful demonstration of broadband laser cooling of positronium (Ps) atoms, obtained within the AEgIS experiment at CERN, is presented here. By employing a custom-designed pulsed alexandrite laser system at 243 nm featuring long-duration pulses of 70 ns and an …

it, at, de, lv, cz, no, pl, ch, in, gb (code pays fourni par la source)

Real-time antiproton annihilation vertexing with submicrometer resolution

Michael Berghold, Davide Orsucci, F. Guatieri, Sara Alfaro et autres

Primary goal of the AEḡIS experiment is to precisely measure the free fall of antihydrogen within Earth's gravitational field. To this end, cold (≈50 K) antihydrogen will traverse a two-grid moiré deflectometer before annihilating onto a position-sensitive detector, which shall determine the …

de, it, lv, cz, no, at, pl, ch, in, gb (code pays fourni par la source)

Real-time antiproton annihilation vertexing with submicrometer resolution

Michael Berghold, Davide Orsucci, F. Castelli, G. Cerchiari et autres

Primary goal of the AEḡIS experiment is to precisely measure the free fall of antihydrogen within Earth’s gravita-tional field. To this end, cold (≈ 50 K) antihydrogen will traverse a two-­grid moiré deflectometer before annihilat-ing onto a position-­sensitive detector, which shall determine …

An alexandrite laser system for positronium laser cooling

Natali Gusakova, A. Camper, R. Caravita, L. Penasa et autres

We report on a Q-switched alexandrite based ∼ 100 ns long pulse duration ultra-violet laser system. The central wavelength of the fundamental pulse is set by a Volume Bragg Grating in reflection and can be tuned between 728 nm and 742 nm. …

no, ch, it, lv, de, gb, fr (code pays fourni par la source)

TALOS (Total Automation of LabVIEW Operations for Science): A framework for autonomous control systems for complex experiments

Marco Volponi, J. Zieliński, T. Rauschendorfer, S. Ḣuck et autres

Modern physics experiments are frequently very complex, relying on multiple simultaneous events to happen in order to obtain the desired result. The experiment control system plays a central role in orchestrating the measurement setup: However, its development is often treated as secondary …

it, ch, pl, de, lv, cz, no, in, gb (code pays fourni par la source)

Real-time antiproton annihilation vertexing with sub-micron resolution

Michael Berghold, Davide Orsucci, F. Guatieri, Sara Alfaro et autres

The primary goal of the AEgIS experiment is to precisely measure the free fall of antihydrogen within Earth's gravitational field. To this end, a cold ~50K antihydrogen beam has to pass through two grids forming a moiré deflectometer before annihilating onto a …