ECRIS2024 - List of Keywords (cyclotron)

Paper	Title	Other Keywords	Page
MOB1	GANIL ion sources: optimisation for operation	ion-source, ECR, plasma, experiment	5
	M. Dubois, B. Osmond, F. Lemagnen, L. Gouleuf, V. Metayer GANIL, Caen, France
	The GANIL (Grand Accélérateur National d’Ions Lourds) in Caen has been producing and accelerating stable and radioactive ion beams for nuclear physics, atomic physics, radiobiology and materials irradiation since 1982. On cyclotrons facility, two ion sources (ECR4 and ECR4M) are used to produce around 4,000 hours per year of gaseous and metallic beams. Recently, studies have been carried out to find ways of optimizing beam characteristics (stability, intensities). One of these involves improving the long-term stability of the beam, which is an important parameter for tuning the accelerator and for physics experiments. At the same time, this improved stability will also reduce the need of on-call interventions for ion source experts. Other studies and tests have been carried out to increase the intensity and/or stability of the metal beams by adapting the injection of the ion source on ECR4/4M. Depending on the configuration, the gain shall be up to a factor of 2 on the charge state required for acceleration, and stability has also been improved compared to previous one. Some details and results will be presented.
	Slides MOB1 [6.158 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-ECRIS2024-MOB1
About •	Received ※ 04 November 2024 — Revised ※ 22 November 2024 — Accepted ※ 20 January 2025 — Issued ※ 23 January 2025
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOC2	A novel inductive oven design for the production of high current, metal ion beams	plasma, ion-source, target, electron	19
	D.S. Todd, J.Y. Benitez LBNL, Berkeley, CA, USA
	Essential to the proposed search for element 120 at LBNL’s 88-Inch Cyclotron is the continual delivery of over a particle microamp of ⁵⁰Ti¹²⁺ for weeks-long campaigns spanning many months. The fully-superconducting ECR ion source VENUS will be the injector source for these runs, and we have developed a new inductive oven design that can survive VENUS’ high magnetic fields while injecting metallic gas into the plasma with high efficiency. The new oven employs a vertical susceptor to permit use with metals that melt before outgassing sufficiently, while also allowing a rotation of the oven’s material exit toward the plasma center for better conversion efficiency to the produced beam. The performance of VENUS with this oven has been outstanding: as reported here, 282 MeV ⁵⁰Ti¹²⁺ beams with stable currents between 1.0 and 1.5 pμA have been delivered for superheavy element searches over multiple ten-day runs.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ECRIS2024-MOC2
About •	Received ※ 04 October 2024 — Revised ※ 10 October 2024 — Accepted ※ 29 January 2025 — Issued ※ 22 June 2025
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOP13	Production of “cocktail beams” with ECR booster, post-accelerated for industrial applications	booster, radiation, ion-source, acceleration	60
	R. Frigot, M. Dubois, B. Jacquot, M. Lalande, B. Lucarz, C.B. Michel, E. Dessay, A. Dubois GANIL, Caen, France
	The GANIL (Grand Accélérateur National d’Ions Lourds) in Caen produces up to 20 % of the beam times dedicated to industrial applications, such as the irradiation of electronic components. The SAGA (Space Application at GAnil) project aims to increase beam times for these applications in the future in order to meet demand from French and European industries. In this context, one of the challenges is to be able to switch rapidly from one beam to another in order to optimize the beam time available to industry. To meet these requirements, CIME’s cyclotron could be an interesting device: it is capable of accelerating beams up to 20 MeV/A for light elements, and it can be used as a mass separator to select the desired beam. In order to supply stable ion beams to the CIME cyclotron, the charge breeder installed on the SPIRAL1 facility has been tested and adapted to provide a stable cocktail-type beam with a very close A/Q. Details of the project and initial results will be described.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ECRIS2024-MOP13
About •	Received ※ 03 December 2024 — Revised ※ 20 January 2025 — Accepted ※ 03 May 2025 — Issued ※ 19 June 2025
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MOB1

GANIL ion sources: optimisation for operation

ion-source, ECR, plasma, experiment

5

M. Dubois, B. Osmond, F. Lemagnen, L. Gouleuf, V. Metayer
GANIL, Caen, France

The GANIL (Grand Accélérateur National d’Ions Lourds) in Caen has been producing and accelerating stable and radioactive ion beams for nuclear physics, atomic physics, radiobiology and materials irradiation since 1982. On cyclotrons facility, two ion sources (ECR4 and ECR4M) are used to produce around 4,000 hours per year of gaseous and metallic beams. Recently, studies have been carried out to find ways of optimizing beam characteristics (stability, intensities). One of these involves improving the long-term stability of the beam, which is an important parameter for tuning the accelerator and for physics experiments. At the same time, this improved stability will also reduce the need of on-call interventions for ion source experts. Other studies and tests have been carried out to increase the intensity and/or stability of the metal beams by adapting the injection of the ion source on ECR4/4M. Depending on the configuration, the gain shall be up to a factor of 2 on the charge state required for acceleration, and stability has also been improved compared to previous one. Some details and results will be presented.

Slides MOB1 [6.158 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-ECRIS2024-MOB1

About •

Received ※ 04 November 2024 — Revised ※ 22 November 2024 — Accepted ※ 20 January 2025 — Issued ※ 23 January 2025

Cite •

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

MOC2

A novel inductive oven design for the production of high current, metal ion beams

plasma, ion-source, target, electron

19

D.S. Todd, J.Y. Benitez
LBNL, Berkeley, CA, USA

Essential to the proposed search for element 120 at LBNL’s 88-Inch Cyclotron is the continual delivery of over a particle microamp of ⁵⁰Ti¹²⁺ for weeks-long campaigns spanning many months. The fully-superconducting ECR ion source VENUS will be the injector source for these runs, and we have developed a new inductive oven design that can survive VENUS’ high magnetic fields while injecting metallic gas into the plasma with high efficiency. The new oven employs a vertical susceptor to permit use with metals that melt before outgassing sufficiently, while also allowing a rotation of the oven’s material exit toward the plasma center for better conversion efficiency to the produced beam. The performance of VENUS with this oven has been outstanding: as reported here, 282 MeV ⁵⁰Ti¹²⁺ beams with stable currents between 1.0 and 1.5 pμA have been delivered for superheavy element searches over multiple ten-day runs.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ECRIS2024-MOC2

About •

Received ※ 04 October 2024 — Revised ※ 10 October 2024 — Accepted ※ 29 January 2025 — Issued ※ 22 June 2025

Cite •

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

MOP13

Production of “cocktail beams” with ECR booster, post-accelerated for industrial applications

booster, radiation, ion-source, acceleration

60

R. Frigot, M. Dubois, B. Jacquot, M. Lalande, B. Lucarz, C.B. Michel, E. Dessay, A. Dubois
GANIL, Caen, France

The GANIL (Grand Accélérateur National d’Ions Lourds) in Caen produces up to 20 % of the beam times dedicated to industrial applications, such as the irradiation of electronic components. The SAGA (Space Application at GAnil) project aims to increase beam times for these applications in the future in order to meet demand from French and European industries. In this context, one of the challenges is to be able to switch rapidly from one beam to another in order to optimize the beam time available to industry. To meet these requirements, CIME’s cyclotron could be an interesting device: it is capable of accelerating beams up to 20 MeV/A for light elements, and it can be used as a mass separator to select the desired beam. In order to supply stable ion beams to the CIME cyclotron, the charge breeder installed on the SPIRAL1 facility has been tested and adapted to provide a stable cocktail-type beam with a very close A/Q. Details of the project and initial results will be described.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ECRIS2024-MOP13

About •

Received ※ 03 December 2024 — Revised ※ 20 January 2025 — Accepted ※ 03 May 2025 — Issued ※ 19 June 2025

Cite •

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