Search Results - "Arpaia, P."

Machine learning-based heating detection from pressure measurements in the CERN Large Hadron Collider by Arpaia, P., Giordano, F., Prevete, R., Salvant, B.

“…Machine learning models are proposed to successfully detect heating from pressure measurements in synchrotron colliders. These models allow to analyze all the…”
Get full text

Machine learning for beam dynamics studies at the CERN Large Hadron Collider by Arpaia, P., Azzopardi, G., Blanc, F., Bregliozzi, G., Buffat, X., Coyle, L., Fol, E., Giordano, F., Giovannozzi, M., Pieloni, T., Prevete, R., Redaelli, S., Salvachua, B., Salvant, B., Schenk, M., Camillocci, M. Solfaroli, Tomás, R., Valentino, G., Van der Veken, F.F., Wenninger, J.

“…Machine learning entails a broad range of techniques that have been widely used in Science and Engineering since decades. High-energy physics has also profited…”
Get full text

Low-complexity voltage and current sources for large-scale quench detection of high-temperature superconducting cables by Arpaia, P., Baccigalupi, C., Esposito, A.

“…In this work, the design of precision voltage and current sources for a new quench detection system for the protection of superconducting power cables is…”
Get full text

Estimating the impedance of a synchrotron component from beam-induced power loss by Arpaia, P., De Vito, L., Giordano, F., Salvant, B.

“…A method for a first-order approximation estimation of the longitudinal impedance of a synchrotron component, starting from power loss measurements on the…”
Get full text

Fault detection on fluid machinery using Hidden Markov Models by Arpaia, P., Cesaro, U., Chadli, M., Coppier, H., De Vito, L., Esposito, A., Gargiulo, F., Pezzetti, M.

“…•Hidden Markov Models are employed to build a fault detection model.•The model is trained by merely exploiting data from normal machine operation.•Multiple…”
Get full text

A high-precision miniaturized rotating coil transducer for magnetic measurements by Arpaia, P., Buzio, M., De Oliveira, R., DiMarco, J., Severino, G.

“…•A PCB sensing coil for measuring the field of small-gap (<10 mm) accelerator magnets.•The sensor compensates the main field for increasing accuracy.•The…”
Get full text

Electromagnetic characterization of the crystal primary collimators for the HL-LHC by Quartullo, D., Arpaia, P., Biancacci, N., Giordano, F., Lamas Garcia, I., Mostacci, A., Palumbo, L., Redaelli, S., Salvant, B., Teofili, L., Migliorati, M.

“…The crystal-based primary collimators installed in the Large Hadron Collider (LHC) at CERN use the channelling process in bent crystals to steer halo particles…”
Get full text

Magnetic Properties of Pure Iron for the Upgrade of the LHC Superconducting Dipole and Quadrupole Magnets by Parrella, A., Arpaia, P., Buzio, M., Liccardo, A., Pentella, M., Principe, R., Ramos, P. M.

“…The construction of the superconducting magnets for the High-Luminosity upgrade of the Large Hadron Collider accelerator at Conseil Européen pour la Recherche…”
Get full text

Effects of temperature and mechanical strain on Ni-Fe alloy CRYOPHY for magnetic shields by Arpaia, P., Buzio, M., Capatina, O., Eiler, K., Langeslag, S.A.E., Parrella, A., Templeton, N.J.

“…The twofold goals of this work are (i) to reduce the lack of experimental data in literature concerning the effects of temperature and mechanical strain on…”
Get full text

Reducing parasitic resonances in particle accelerators components by broadband Higher–Order–Mode couplers by Arpaia, P., Berrig, O.E., De Vito, L., Gilardi, A.

“…•Broadband HOM couplers have been proposed to damp resonances in cavities.•Proposed HOM couplers allow damping multiple resonances.•27 HOMs with different…”
Get full text

Design, Assembly, and Commissioning of a Cryogenic DC Current Transformer Designed for Measuring Currents of up to 80 kA by Montenero, G., Arpaia, P., Ballarino, A., Bottura, L.

“…A new cryogenic dc current transformer (Cryo-DCCT) has recently been designed and assembled at CERN. The device, whose design is based on that of a…”
Get full text

State of the art and challenges in measurements and transducers for cryogenic monitoring by Arpaia, P., De Vito, L., Pezzetti, M., Picariello, F., Serio, L.

“…Mainstreams in research on measurement systems for cryogenic process monitoring are reviewed with the aim of defining key current trends and possible future…”
Get full text

Wake-function, impedance, and energy loss determination for two countermoving particle beams by Teofili, L., Arpaia, P., Giordano, F., Lamas, I., Rumolo, G., Salvant, B., Zannini, C., Migliorati, M.

“…This paper deals with the determination of the wake-function, impedance and energy loss due to surrounding accelerator components of two countermoving beams,…”
Get full text

Digital Integrator for Fast Accurate Measurement of Magnetic Flux by Rotating Coils by Arpaia, P., Masi, A., Spiezia, G.

“…A fast digital integrator (FDI) with dynamic accuracy and a trigger frequency higher than those of a portable digital integrator (PDI), which is a…”
Get full text

Metrological Performance of a Ferrimagnetic Resonance Marker for the Field Control of the CERN Proton Synchrotron by Arpaia, P., Buzio, M., Caspers, F., Golluccio, G., Oberson, D.

“…In particle accelerators, "field markers" provide a digital trigger when the magnetic field crosses a given threshold. In this paper, the metrological…”
Get full text

On-field validation of the new platform for magnetic measurements at CERN by Arpaia, P., Bottura, L., Inglese, V., Spiezia, G.

“…A new platform for magnetic measurements at the European Organization for Nuclear Research (CERN) is presented. The key concepts and the architecture of its…”
Get full text

Low-Invasive Diagnosis of Metallic Prosthesis Osseointegration by Electrical Impedance Spectroscopy by Arpaia, P., Clemente, F., Zanesco, A.

“…In this paper, a digital-measurement method for low-invasive clinical diagnosis of metallic prosthesis osseointegration is proposed. Electrical impedance…”
Get full text

Performance Improvement of a DSP-Based Digital Integrator for Magnetic Measurements at CERN by Arpaia, P., Inglese, V., Spiezia, G.

“…An improved self-calibrating digital instrument for online flux measurements on superconducting magnets for particle accelerators prototyped at the European…”
Get full text

Surface-Response-Based Modeling of Digitizers: A Case Study on a Fast Digital Integrator at CERN by Arpaia, P., Inglese, V., Spiezia, G., Tiso, S.

“…A statistical approach to simulation in behavioral modeling for assessing dynamic metrological performance during the concept design of accurate digitizers is…”
Get full text

Model-Based Compensation of SAR Nonlinearity by Arpaia, P., Michaeli, L., Rapuano, S.

“…In the successive approximation analog-to-digital conversion principle, sample-and-hold (S/H) nonideality, producing an input signal variation that is less…”
Get full text