Explanipedia

Design, Fabrication, and Cold Test of a High-Efficiency C-Band Traveling-Wave Accelerating Structure Open

Yihao Zhang, Zhicheng Huang, Yelong Wei, Li Sun, Zexin Cao , et al. · 2025

Theory of Diffraction by Holes of Arbitrary Sizes Open

Mostafa Behtouei, L. Faillace, M. Migliorati, A. Mostacci, L. Palumbo , et al. · 2025

High-gradient accelerating radio frequency (RF) ] cavities are currently being developed in several national laboratories for applications in high-energy physics. Ultra-high accelerating gradients, reaching up to the GV/m range, can be ach…

Numerical and Analytical Study of the Magnetic Field Distribution in a Three-Solenoid System Open

Mostafa Behtouei, A. Bacci, Martina Carillo, Moreno Comelli, L. Faillace , et al. · 2025

This study investigates the magnetic fields produced by a three-solenoid system configuration using both traditional numerical solvers and fractional integral methods. We focus on the role of mesh resolution in influencing simulation accur…

A compact C-band FLASH electron linear accelerator prototype for the VHEE SAFEST project Open

Lucia Giuliano, D. Alesini, Fabio Cardelli, Martina Carillo, E. Chiadroni , et al. · 2025

FLASH therapy, a novel cancer treatment technique, aims to control tumor growth, sparing the healthy tissue from radiation damage and thus increasing the therapeutic ratio. Translating FLASH therapy into clinical practice, especially for t…

Investigations on the multiple-sector hard-copper X-band accelerating structures Open

Valery Dolgashev, L. Faillace, M. Migliorati, B. Spataro · 2024

Design and Test of C-band Linac Prototypes for Electron FLASH Radiotherapy Open

L. Giuliano, Fabio Bosco, Martina Carillo, L. Ficcadenti, M. Magi , et al. · 2024

Flash Therapy is a revolution in cancer cure since it spares healthy tissue from the damage of ionization radiations without decreasing its effectiveness in tumor control. To allow the implementation of the FLASH therapy concept into actua…

Space Charge Forces analytical model for emittance compensation Open

M. Carillo, Fabio Bosco, E. Chiadroni, L. Faillace, L. Giuliano , et al. · 2024

Space charge forces represent main induced effects in an RF-injector that degrade the beam quality. In this scenario the laser distribution sent on the photocathode acquires an important role in the emittance compensation process, as the s…

Beam dynamics optimization for high gradient beam driven plasma wakefield acceleration at SPARC-LAB Open

M. Carillo, D. Alesini, M.P. Anania, Mostafa Behtouei, M. Bellaveglia , et al. · 2024

The SPARC_LAB test facility at the LNF (Laboratori Nazionali di Frascati, Rome) holds a high brightness photo-injector used to investigate advanced beam manipulation techniques. High brightness electron bunch trains (so-called comb beams) …

Electron beam analysis and sensitivity studies for the EuPRAXIA@SPARC_LAB RF injector Open

A. Giribono, D. Alesini, A. Bacci, M. Bellaveglia, Fabio Cardelli , et al. · 2024

The interest in plasma-based accelerators as drivers of user facilities is growing worldwide thanks to their compactness and reduced costs. The EuPRAXIA@SPARC_LAB collaboration is preparing a technical design report for a multi-GeV plasma-…

Advanced Studies for the Dynamics of High Brightness Electron Beams with the Code MILES Open

Fabio Bosco, Mostafa Behtouei, Obed Camacho, M. Carillo, E. Chiadroni , et al. · 2024

High brightness electron beams enable a wide spectrum of applications ranging from short wavelength radiation sources to high gradient wakefield acceleration. The rich dynamics that are intrinsic in charged particles accelerated in complex…

Beam dynamics optimization of EuPRAXIA@SPARC_LAB RF injector Open

G. J. Silvi, A. Bacci, Martina Carillo, E. Chiadroni, L. Faillace , et al. · 2024

At EuPRAXIA@SPARC_LAB an X-ray FEL user facility is driven by a plasma accelerator in the particle-driven configuration where an ultra-relativistic beam, the driver, through a plasma generates a wake of charge density useful for accelerati…

EuPRAXIA@SPARC_LAB status update Open

F. Villa, D. Alesini, Maria P. Anania, M. Angelucci, A. Bacci , et al. · 2023

EuPRAXIA@SPARC_LAB is a new multi-disciplinary user-facility that is\ncurrently under construction at the Laboratori Nazionali di Frascati of the\nINFN in the framework of the EuPRAXIA collaboration. The electron beam will be\naccelerated …

RF Design and Measurements of a C-Band Prototype Structure for an Ultra-High Dose-Rate Medical Linac Open

Lucia Giuliano, Fabio Bosco, Martina Carillo, G. Felici, L. Ficcadenti , et al. · 2023

In this paper, we illustrate the RF design and measurements of a C-band prototype structure for an Ultra High Dose Rate medical linac. (1) Background: FLASH Radiotherapy (RT) is a revolutionary new technique for cancer cure. It releases ul…

Characterization of Ultra-High-Dose Rate Electron Beams with ElectronFlash Linac Open

Lucia Giuliano, Gaia Franciosini, L. Palumbo, Lilia Aggar, Marie Dutreix , et al. · 2023

Purpose: The electron linac ElectronFlash installed at Institut Curie (Orsay, France) is entirely dedicated to FLASH irradiation for radiobiological and pre-clinical studies. The system was designed to deliver an ultra-high-dose rate per p…

Commissioning and first results of an x-band LLRF system for TEX test facility at LNF-INFN Open

L. Piersanti, D. Alesini, M. Bellaveglia, S Bini, B. Buonomo , et al. · 2023

In the framework of LATINO project (Laboratory in Advanced Technologies for INnOvation) funded by Lazio regional government, the commissioning of the TEst stand for X-band (TEX) facility has started in 2021 at Frascati National Laboratorie…

Modeling and mitigation of long-range wakefields for advanced linear colliders Open

Fabio Bosco, Obed Camacho, Martina Carillo, E. Chiadroni, L. Faillace , et al. · 2023

The luminosity requirements of TeV-class linear colliders demand use of intense charged beams at high repetition rates. Such features imply multi-bunch operation with long current trains accelerated over the km length scale. Consequently, …

Space charge analysis for low energy photoinjector Open

Martina Carillo, Mostafa Behtouei, Fabio Bosco, L. Faillace, L. Ficcadenti , et al. · 2023

Beam dynamics studies are performed in the context of a C-Band hybrid photo-injector project developed by a collaboration between UCLA/Sapienza/INFN-LNF/RadiaBeam [1, 2]. These studies aim to explain beam behaviour through the beam-slice e…

Proposal of a VHEE Linac for FLASH radiotherapy Open

Lucia Giuliano, Fabio Bosco, Martina Carillo, Daniele De Arcangelis, L. Ficcadenti , et al. · 2023

Translation of electron FLASH radiotherapy in clinical practice requires the use of high energy accelerators to treat deep tumours and Very High Electron Energy (VHEE) could represent a valid technique to achieve this goal. In this scenari…

Studies of a Ka-band high power klystron amplifier at INFN-LNF Open

Mostafa Behtouei, B. Spataro, L. Faillace, Alberto Leggieri, Franco Di Paolo , et al. · 2023

In the framework of the Compact Light XLS project [1], a Ka-band linearizer with electric field ranging from 100 to 150 MV/m is requested [2, 3, 4]. In order to feed this structure, a proper Ka-band high power klystron amplifier with a hig…

A novel method to calculate the magnetic field of a solenoid generated by a surface current element Open

Mostafa Behtouei, B. Spataro, L. Faillace, Martina Carillo, Moreno Comelli , et al. · 2022

The purpose of this paper is to derive the on and off-axes magnetic field of a solenoid with the use of a novel method. We have found a solution for the Biot-Savart law by considering the solenoid with a stationary electric current. The re…

Theory of Diffraction by Holes of Arbitrary Sizes Open

Mostafa Behtouei, L. Faillace, M. Migliorati, L. Palumbo, B. Spataro · 2022

New high-gradient accelerating RF cavities are nowadays developed in several national laboratories for high-energy physics applications. Ultra high gradients, up to the order of GV/m, can be achieved by using ultra compact accelerating str…

The New C Band Gun for the Next Generation RF Photo-Injectors Open

D. Alesini, M. Ferrario, A. Giribono, A. Gizzi, L. Piersanti , et al. · 2022

RF photo-injectors are widely used in modern facilities, especially in FEL, as very low-emittance and high-brightness electron sources. Presently, the RF technology mostly used for RF guns is the S band (3 GHz) with typical cathode peak fi…

Simulations of Field-Emission Electron Beams from CNT Cathodes in RF Photoinjectors Open

Daniel Mihalcea, L. Faillace, Harsha Panuganti, Jayakar Thangaraj, P. Piot · 2022

Average field emission currents of up to 700 mA were produced by Carbon Nano Tube (CNT) cathodes in a 1.3 GHz RF gun at Fermilab High Brightness Electron Source Lab. (HBESL). The CNT cathodes were manufactured at Xintek and tested under DC…

A Hard Copper Open X-Band RF Accelerating Structure Made by Two Halves Open

B. Spataro, Mostafa Behtouei, Fabio Cardelli, Martina Carillo, Valery Dolgashev , et al. · 2022

This communication focuses on the technological developments aiming to show the viability of novel welding techniques [...]

Dark Current Studies for a High Gradient SW C-Band RF Gun Open

Fabio Cardelli, D. Alesini, L. Faillace, A. Giribono, Alessandro Vannozzi , et al. · 2022

It is now well-established that for the generation of very high brightness beams, required for fourth generation light sources, it is highly advantageous to use injectors based on Radiofrequency photo-guns with very high peak electric fiel…

Relativistic versus Nonrelativistic Approaches to a Low Perveance High Quality Matched Beam for a High Efficiency Ka-Band Klystron Open

Mostafa Behtouei, B. Spataro, L. Faillace, Martina Carillo, Alberto Leggieri , et al. · 2021

Advanced technical solution for the design of a low perveance electron gun with a high quality beam dedicated to high power Ka-band klystrons is presented in this paper. The proposed electron gun can be used to feed linear accelerating str…

STAR HE-Linac Complete Detailed Design Report Open

A. Bacci, L. Faillace, L. Pellegrino, D. Alesini, S. Bini , et al. · 2021

This Document contains a complete technical description of the system devoted to the upgrade of the STAR Linear Accelerator (STAR Linac). According to the Contract signed between Universita della Calabria (UniCal) and Istituto Nazionale di…

A Novel method to calculate the magnetic field of a Solenoid generated by a surface current element Open

Mostafa Behtouei, B. Spataro, L. Faillace, M. Carillo, Moreno Comelli , et al. · 2021

The purpose of this paper is to derive the on and off-axes magnetic field of a solenoid with the use of a novel method. We have found a solution for the Biot-Savart law by considering the solenoid with a stationary electric current. The re…

Relativistic approach to a low perveance high quality matched beam for a high efficiency Ka-Band klystron Open

Mostafa Behtouei, B. Spataro, L. Faillace, Martina Carillo, Alberto Leggieri , et al. · 2021

Advanced technical solution for the design of a low perveance electron gun with a high quality beam dedicated to high power Ka-band klystrons is presented in this paper. The proposed electron gun can be used to feed linear accelerating str…

A hard open X-band RF accelerating structure made by two halves Open

B. Spataro, Mostafa Behtouei, Fabio Cardelli, Martina Carillo, Valery Dolgashev , et al. · 2021

High-gradient linacs of next generation require novel accelerating structures which are compact, robust and cost-effective. Dedicated research and development have been launched in the linear-collider community. This paper focuses on the t…

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