IPAC2022 - List of Authors (Torrisi, G.)

Paper	Title	Page
MOPOMS022	Studies of a Ka-Band High Power Klystron Amplifier at INFN-LNF	683
	M. Behtouei, L. Faillace, A. Mostacci, B. Spataro LNF-INFN, Frascati, Italy F. Bosco, M. Carillo, M. Migliorati, A. Mostacci, L. Palumbo Sapienza University of Rome, Rome, Italy F. Di Paolo, S. Fantauzzi, A. Leggieri, F. Marrese, L. Valletti Università degli Studi di Roma "Tor Vergata", Roma, Italy G. Torrisi INFN/LNS, Catania, Italy
	In the framework of the Compact Light XLS project, a Ka-band linearizer with electric field ranging from 100 to 150 MV/m is requested. In order to feed this structure, a proper Ka-band high power klystron amplifier with a high efficiency is needed. This paper reports a possible solution for a klystron amplifier operating on the TM₀₁₀ mode at 36 GHz, the third harmonic of the 12 GHz linac frequency, with an efficiency of 44% and 10.6 MW radiofrequency output power. We discuss also here the high-power DC gun with the related magnetic focusing system, the RF beam dynamics and finally the multiphysics analysis of a high- power microwave window for a Ka-band klystron providing 16MW of peak power.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2022-MOPOMS022
About •	Received ※ 18 May 2022 — Revised ※ 12 June 2022 — Accepted ※ 18 June 2022 — Issue date ※ 10 July 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPOTK054	Proposal of a VHEE Linac for FLASH Radiotherapy	2903
SUSPMF120	use link to see paper's listing under its alternate paper code
	L. Giuliano, F. Bosco, M. Carillo, D. De Arcangelis, A. De Gregorio, L. Ficcadenti, D. Francescone, G. Franciosini, M. Migliorati, A. Mostacci, L. Palumbo, V. Patera, A. Sarti Sapienza University of Rome, Rome, Italy D. Alesini, A. Gallo, A. Vannozzi INFN/LNF, Frascati, Italy M. Behtouei, L. Faillace, B. Spataro LNF-INFN, Frascati, Italy M.G. Bisogni, F. Di Martino, J.H. Pensavalle INFN-Pisa, Pisa, Italy G.A.P. Cirrone, G. Cuttone, G. Torrisi INFN/LNS, Catania, Italy V. Favaudon, A. Patriarca Institut Curie - Centre de Protonthérapie d’Orsay, Orsay, France S. Heinrich Institut Curie, Centre de Recherche, Orsay, France
	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 sce- nario, a VHEE FLASH linac is under study at the University La Sapienza of Rome (Italy) in collaboration with the Italian Institute for Nuclear Research (INFN) and the Curie Insti- tute (France). Here we present the preliminary results of a compact C-band system aiming to reach an high accelerating gradient and an high pulse current necessary to deliver high dose per pulse and ultra-high dose rate required for FLASH effect. We propose a system composed of a low energy high current injector linac followed by a modular section of high accelerating gradient structures. CST code is used to define the required LINAC’s RF parameters and beam dynamics simulations are performed using T-Step, ASTRA and GPT tracking codes.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2022-THPOTK054
About •	Received ※ 17 May 2022 — Revised ※ 14 June 2022 — Accepted ※ 16 June 2022 — Issue date ※ 10 July 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Studies of a Ka-Band High Power Klystron Amplifier at INFN-LNF

683

M. Behtouei, L. Faillace, A. Mostacci, B. Spataro
LNF-INFN, Frascati, Italy
F. Bosco, M. Carillo, M. Migliorati, A. Mostacci, L. Palumbo
Sapienza University of Rome, Rome, Italy
F. Di Paolo, S. Fantauzzi, A. Leggieri, F. Marrese, L. Valletti
Università degli Studi di Roma "Tor Vergata", Roma, Italy
G. Torrisi
INFN/LNS, Catania, Italy

In the framework of the Compact Light XLS project, a Ka-band linearizer with electric field ranging from 100 to 150 MV/m is requested. In order to feed this structure, a proper Ka-band high power klystron amplifier with a high efficiency is needed. This paper reports a possible solution for a klystron amplifier operating on the TM₀₁₀ mode at 36 GHz, the third harmonic of the 12 GHz linac frequency, with an efficiency of 44% and 10.6 MW radiofrequency output power. We discuss also here the high-power DC gun with the related magnetic focusing system, the RF beam dynamics and finally the multiphysics analysis of a high- power microwave window for a Ka-band klystron providing 16MW of peak power.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2022-MOPOMS022

About •

Received ※ 18 May 2022 — Revised ※ 12 June 2022 — Accepted ※ 18 June 2022 — Issue date ※ 10 July 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPOTK054

Proposal of a VHEE Linac for FLASH Radiotherapy

2903

SUSPMF120

use link to see paper's listing under its alternate paper code

L. Giuliano, F. Bosco, M. Carillo, D. De Arcangelis, A. De Gregorio, L. Ficcadenti, D. Francescone, G. Franciosini, M. Migliorati, A. Mostacci, L. Palumbo, V. Patera, A. Sarti
Sapienza University of Rome, Rome, Italy
D. Alesini, A. Gallo, A. Vannozzi
INFN/LNF, Frascati, Italy
M. Behtouei, L. Faillace, B. Spataro
LNF-INFN, Frascati, Italy
M.G. Bisogni, F. Di Martino, J.H. Pensavalle
INFN-Pisa, Pisa, Italy
G.A.P. Cirrone, G. Cuttone, G. Torrisi
INFN/LNS, Catania, Italy
V. Favaudon, A. Patriarca
Institut Curie - Centre de Protonthérapie d’Orsay, Orsay, France
S. Heinrich
Institut Curie, Centre de Recherche, Orsay, France

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 sce- nario, a VHEE FLASH linac is under study at the University La Sapienza of Rome (Italy) in collaboration with the Italian Institute for Nuclear Research (INFN) and the Curie Insti- tute (France). Here we present the preliminary results of a compact C-band system aiming to reach an high accelerating gradient and an high pulse current necessary to deliver high dose per pulse and ultra-high dose rate required for FLASH effect. We propose a system composed of a low energy high current injector linac followed by a modular section of high accelerating gradient structures. CST code is used to define the required LINAC’s RF parameters and beam dynamics simulations are performed using T-Step, ASTRA and GPT tracking codes.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2022-THPOTK054

About •

Received ※ 17 May 2022 — Revised ※ 14 June 2022 — Accepted ※ 16 June 2022 — Issue date ※ 10 July 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)