Cyclotrons2019 - Table of Session: THB (High Power Cyclotrons and Diagnostics)

Paper	Title	Page
THB01	Review of High Power Cyclotrons and Their Applications	289
	L. Calabretta, D. Rifuggiato INFN/LNS, Catania, Italy M. Maggiore INFN/LNL, Legnaro (PD), Italy
	An incomplete review of existing machines and of present new projects of high power cyclotrons is here presented. Both high energy and low/medium energy cyclotrons will be described. Specific requests for different fields of applications are also discussed.
	Slides THB01 [11.837 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB01
About •	paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THB02	Production of 70 MeV Proton Beam in a Superconducting Cyclotron	294
	V.L. Smirnov, S.B. Vorozhtsov JINR, Dubna, Moscow Region, Russia
	Production of 70 MeV proton beams with help of a cyclotron-type facility is one of highly requested tasks presently. Such beams are used for medical applications including direct tumor irradiation and also for production of medical isotopes. The applications mentioned above dictate corresponding requirements imposed on the beam quality and intensity. For proton therapy treatment it is sufficient to have 300-600 nA output beam current with rather strict tolerance on the transverse beam quality. On the other hand, for the isotope production the major requirement is high enough beam intensity (hundreds µA) with less demanding beam quality. Nowadays, for production of the proton beams in the energy range considered cyclotrons with resistive coil weighting ~200 tons are mostly used. In these cyclotrons two extraction methods - with electrostatic deflector and with stripping foils - can provide somewhat different quality of the output beam. In given report a possibility of using a superconducting cyclotron instead of room-temperature one is considered. To this end, acceleration of various ions was investigated with analysis of the main facility parameters and resulting output beams.
	Slides THB02 [2.733 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB02
About •	paper received ※ 06 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THB03	Conceptual Design of TR¹⁰⁰⁺: An Innovative Superconducting Cyclotron for Commercial Isotopes Production	298
	Y.-N. Rao, R.A. Baartman, Y. Bylinskiipresenter, T. Planche, L.G. Zhang TRIUMF, Vancouver, Canada
	Utilizing dedicated cyclotrons to produce medical isotopes is an arising technology in hospitals across Canada. Thus, in January 2015, the CycloMed99 team, led by TRIUMF, demonstrated a breakthrough in producing the world’s most highly used medical isotope, technetium-99m (Tc-99m), on existing medical cyclotrons. Now we propose to design an innovative superconducting cyclotron for production of commercially valuable radioisotopes. This project will be focusing on a proton energy of 70-150 MeV and proton current of 2 mA. In this energy range, numerous increasingly demanded radioÂnuclides can be produced, either as parent nuclei for generator use, or directly as a active pharmaceutical ingredient, e.g. Strontium-82 (Sr-82), Actinium-235 (Ac-235) and Bismuth-213 (Bi-213). Our machine shall be designed to accelerate H²⁺, by injection from external ion source and extraction by stripping. This shall allow to simultaneously extract multiple cw proton beams of variable currents and potentially variable energies to multiple experimental stations with extremely high extraction efficiency. The basic parameters of the machine and the simulations of stripping extraction will be presented.
	Slides THB03 [3.030 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB03
About •	paper received ※ 17 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THB04	Development of a Transparent Profiler Based on Secondary Electrons Emission for Charged Particle Beams	302
	C. Thiebaux, Y. Geerebaert, F. Magniette, P. Manigot, M. Verderi LLR, Palaiseau, France G. Blain, F. Haddad, N. Michel, N. Servagent, T. Sounalet SUBATECH, Nantes, France B. Boyer, É. Delagnes, F.T. Gebreyohannes, O. Gevin CEA-IRFU, Gif-sur-Yvette, France F. Haddad, C. Koumeir, F. Poirier Cyclotron ARRONAX, Saint-Herblain, France
	Funding: This study is supported by three programs of the Agence Nationale de la Recherche, ANR-17-CE31-0015, ANR- 11-EQPX-0004 and the LABEX P2IO. The PEPITES project* aims at realizing an operational prototype of an ultra-thin, radiation-resistant profiler able to permanently operate on mid-energy (O(100 MeV)) charged particle accelerators. PEPITES uses secondary electron emission (SEE) for the signal because it requires only a minimal thickness of material (10 nm); very linear, it also offers a great dynamic. The lateral beam profile is sampled using segmented electrodes, constructed by thin film methods. Gold strips, as thin as the electrical conductivity allows (~ 50 nm), are deposited on an as thin as possible insulating substrate. When crossing the gold, the beam ejects the electrons by SEE, the current thus formed in each strip allows the sampling. The technique was validated at ARRONAX with 68 MeV proton beams for intensities from 100 fA to 10 nA. SEE is characterized up to 100 nA at ARRONAX and medical energies at CPO*. Electrodes were subjected to doses of up to 10⁹ Gy without showing significant degradation. A demonstrator with dedicated electronics (CEA) will be installed at ARRONAX and used routinely. The performances of the system and its behavior over time will thus be characterized. LLR, ARRONAX cyclotron and CEA **Orsay Protontherapy Center (Institut Curie)
	Slides THB04 [16.785 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB04
About •	paper received ※ 13 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Review of High Power Cyclotrons and Their Applications

289

L. Calabretta, D. Rifuggiato
INFN/LNS, Catania, Italy
M. Maggiore
INFN/LNL, Legnaro (PD), Italy

An incomplete review of existing machines and of present new projects of high power cyclotrons is here presented. Both high energy and low/medium energy cyclotrons will be described. Specific requests for different fields of applications are also discussed.

Slides THB01 [11.837 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB01

About •

paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020

Export •

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

THB02

Production of 70 MeV Proton Beam in a Superconducting Cyclotron

294

V.L. Smirnov, S.B. Vorozhtsov
JINR, Dubna, Moscow Region, Russia

Production of 70 MeV proton beams with help of a cyclotron-type facility is one of highly requested tasks presently. Such beams are used for medical applications including direct tumor irradiation and also for production of medical isotopes. The applications mentioned above dictate corresponding requirements imposed on the beam quality and intensity. For proton therapy treatment it is sufficient to have 300-600 nA output beam current with rather strict tolerance on the transverse beam quality. On the other hand, for the isotope production the major requirement is high enough beam intensity (hundreds µA) with less demanding beam quality. Nowadays, for production of the proton beams in the energy range considered cyclotrons with resistive coil weighting ~200 tons are mostly used. In these cyclotrons two extraction methods - with electrostatic deflector and with stripping foils - can provide somewhat different quality of the output beam. In given report a possibility of using a superconducting cyclotron instead of room-temperature one is considered. To this end, acceleration of various ions was investigated with analysis of the main facility parameters and resulting output beams.

Slides THB02 [2.733 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB02

About •

paper received ※ 06 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020

Export •

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

THB03

Conceptual Design of TR¹⁰⁰⁺: An Innovative Superconducting Cyclotron for Commercial Isotopes Production

298

Y.-N. Rao, R.A. Baartman, Y. Bylinskiipresenter, T. Planche, L.G. Zhang
TRIUMF, Vancouver, Canada

Utilizing dedicated cyclotrons to produce medical isotopes is an arising technology in hospitals across Canada. Thus, in January 2015, the CycloMed99 team, led by TRIUMF, demonstrated a breakthrough in producing the world’s most highly used medical isotope, technetium-99m (Tc-99m), on existing medical cyclotrons. Now we propose to design an innovative superconducting cyclotron for production of commercially valuable radioisotopes. This project will be focusing on a proton energy of 70-150 MeV and proton current of 2 mA. In this energy range, numerous increasingly demanded radioÂnuclides can be produced, either as parent nuclei for generator use, or directly as a active pharmaceutical ingredient, e.g. Strontium-82 (Sr-82), Actinium-235 (Ac-235) and Bismuth-213 (Bi-213). Our machine shall be designed to accelerate H²⁺, by injection from external ion source and extraction by stripping. This shall allow to simultaneously extract multiple cw proton beams of variable currents and potentially variable energies to multiple experimental stations with extremely high extraction efficiency. The basic parameters of the machine and the simulations of stripping extraction will be presented.

Slides THB03 [3.030 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB03

About •

paper received ※ 17 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020

Export •

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

THB04

Development of a Transparent Profiler Based on Secondary Electrons Emission for Charged Particle Beams

302

C. Thiebaux, Y. Geerebaert, F. Magniette, P. Manigot, M. Verderi
LLR, Palaiseau, France
G. Blain, F. Haddad, N. Michel, N. Servagent, T. Sounalet
SUBATECH, Nantes, France
B. Boyer, É. Delagnes, F.T. Gebreyohannes, O. Gevin
CEA-IRFU, Gif-sur-Yvette, France
F. Haddad, C. Koumeir, F. Poirier
Cyclotron ARRONAX, Saint-Herblain, France

Funding: This study is supported by three programs of the Agence Nationale de la Recherche, ANR-17-CE31-0015, ANR- 11-EQPX-0004 and the LABEX P2IO.
The PEPITES project* aims at realizing an operational prototype of an ultra-thin, radiation-resistant profiler able to permanently operate on mid-energy (O(100 MeV)) charged particle accelerators. PEPITES uses secondary electron emission (SEE) for the signal because it requires only a minimal thickness of material (10 nm); very linear, it also offers a great dynamic. The lateral beam profile is sampled using segmented electrodes, constructed by thin film methods. Gold strips, as thin as the electrical conductivity allows (~ 50 nm), are deposited on an as thin as possible insulating substrate. When crossing the gold, the beam ejects the electrons by SEE, the current thus formed in each strip allows the sampling. The technique was validated at ARRONAX with 68 MeV proton beams for intensities from 100 fA to 10 nA. SEE is characterized up to 100 nA at ARRONAX and medical energies at CPO**. Electrodes were subjected to doses of up to 10⁹ Gy without showing significant degradation. A demonstrator with dedicated electronics (CEA) will be installed at ARRONAX and used routinely. The performances of the system and its behavior over time will thus be characterized.
*LLR, ARRONAX cyclotron and CEA
**Orsay Protontherapy Center (Institut Curie)

Slides THB04 [16.785 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB04

About •

paper received ※ 13 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020

Export •

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