Cyclotrons2019 - List of Keywords (plasma)

Paper	Title	Other Keywords	Page
MOP017	Research on Metallic Ion Beam Production With Electron Cyclotron Resonance Ion Sources	experiment, ECR, ion-source, cyclotron	62
	S.L. Bogomolov, A.A. Efremov, K.I. Kuzmenkov, D.K. Pugachev, Yu. Yazvitsky JINR, Dubna, Moscow Region, Russia J.L. Conradie, D.T. Fourie, N.Y. Kheswa, J. Mira, F. Nemulodi, R.W. Thomae iThemba LABS, Somerset West, South Africa
	Many experiments in nuclear physics request the production of metallic ion beams. All elements from lithium up to uranium are of interest and most of them are required as a specific isotope which demands commonly enriched materials. Depending on the material properties beams of rare isotopes can be produced from solid materials or solid compounds. In this report the results of experiments carried out under a collaboration of JINR and iThemba LABS on the production of metallic ions from Electron Cyclotron Resonance Ion Sources (ECRIS) using resistive oven evaporation, Metal Ions from VOlatile Compounds (MIVOC) method and sputtering technique will be presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP017
About •	paper received ※ 11 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)

MOP024	Development of a Replacement for the Long Radial Probe in the Ring Cyclotron	cyclotron, vacuum, simulation, cavity	86
	R. Dölling, G.G. Gamma, V. Ovinnikov, M. Rohrer, P. Rüttimann, R. Senn PSI, Villigen PSI, Switzerland
	The long radial probe in PSI’s Ring cyclotron delivers a radial pattern of all but the first few turns. In recent years, the measurement has been plagued by artefacts and mechanical problems. We report here on the development of a replacement, which should also provide a more flexible basis for extended measurement capabilities.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP024
About •	paper received ※ 20 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)

MOP025	Fast Recharging of Electrostatic Injection and Extraction Septa After Breakdown	ISOL, septum, vacuum, cyclotron	90
	R. Dölling PSI, Villigen PSI, Switzerland J. Brutscher Private Address, Dresden, Germany
	We propose to recharge an electrostatic injection or extraction septum in a high-power cyclotron fast enough to omit the need for switching off the beam at a high voltage breakdown.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP025
About •	paper received ※ 20 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)

MOC02	A Pathway to Accelerate Ion Beams up to 3 GeV with a K140 Cyclotron	ECR, cyclotron, ECRIS, ion-source	119
	D.Z. Xie, L. Phair, D.S. Todd LBNL, Berkeley, California, USA
	Funding: U.S. Department of Energy, Office of Science, Office of Nuclear Physics under contract number DE-AC02-05CH11231 The capabilities of the K140 88-Inch Cyclotron at Lawrence Berkeley National Laboratory (LBNL) have been extensively enhanced through generations of electron cyclotron resonance ion sources (ECRISs). The cyclotron has evolved from a light-ion accelerator into a proton to uranium accelerator and has accelerated ultra-high charge state heavy ions, such as xenon and uranium. Recently, with 124Xe⁴⁹⁺ ions injected from VENUS (a 3rd generation ECR ion source) the 88-Inch Cyclotron reached a new record of ~ 2.6 GeV.* This is an energy increase of about fifteen-fold over what this K140 cyclotron could achieve when it started operation almost six decades ago. A 4th generation ECR ion source, MARS-D, is under development and will further raise the output energy of the cyclotron. With the higher ion charge states produced that are anticipated with a new ECR ion source, the 88-Inch Cyclotron ought to be able to accelerate ion beams of energies of 3 GeV and higher for the radiation effects testing community. This paper will present and discuss the development of the MARS-D ECR ion source and the 88-Inch Cyclotron’s recent and possible future achievements. *: D. Z. Xie, W. Lu, J. Y. Benitez, M. J. Regis, Recent Production of Ultra-High Charge State Ion Beams with VENUS, Proc. of the 23rd Int’l Workshop on ECR Ion Sources, Catania, Italy, Sept, 2018.
	Slides MOC02 [11.895 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOC02
About •	paper received ※ 16 September 2019 paper accepted ※ 24 September 2019 issue date ※ 20 June 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THD01	Physics and Technology of Compact Plasma Traps	ECR, diagnostics, ion-source, electron	321
	D. Mascali, G. Castro, L. Celona, S. Gammino, O. Leonardi, M. Mazzaglia, E. Naselli, G. Torrisi INFN/LNS, Catania, Italy E. Naselli Catania University, Catania, Italy
	ECR Ion Sources are deemed to be among the most performing ion sources feeding particle accelerators, cyclotrons in particular. Improvements of their performances strictly depend on the knowledge of plasma physics in compact magnetic traps. The paper will comment on the results obtained by the INFN-LNS team and international collaborators by means of a multi-diagnostics setup able to monitor the evolution in space and time of several plasma parameters, simultaneously with beam extraction and analysis in the LEBT, in single vs. double frequency operations, including the RF power and magnetic field scalings, and exploring regimes dominated by plasma turbulence. The results are relevant for the operations of existing ion sources and for the design of new ones. Compact magnetic traps fashioned in a similar way of ECRISs can be considered as an experimental environment by itself: we are exploring this opportunity relying to the in-plasma measurements of radionuclides lifetimes (in particular, beta-decaying elements): CosmoChronometers or nuclei involved in the s-process nucleosynthesis are among the case studies, opening new perspectives in the nuclear astrophysics field.
	Slides THD01 [17.662 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THD01
About •	paper received ※ 15 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

Other Keywords

Page

MOP017

Research on Metallic Ion Beam Production With Electron Cyclotron Resonance Ion Sources

experiment, ECR, ion-source, cyclotron

62

S.L. Bogomolov, A.A. Efremov, K.I. Kuzmenkov, D.K. Pugachev, Yu. Yazvitsky
JINR, Dubna, Moscow Region, Russia
J.L. Conradie, D.T. Fourie, N.Y. Kheswa, J. Mira, F. Nemulodi, R.W. Thomae
iThemba LABS, Somerset West, South Africa

Many experiments in nuclear physics request the production of metallic ion beams. All elements from lithium up to uranium are of interest and most of them are required as a specific isotope which demands commonly enriched materials. Depending on the material properties beams of rare isotopes can be produced from solid materials or solid compounds. In this report the results of experiments carried out under a collaboration of JINR and iThemba LABS on the production of metallic ions from Electron Cyclotron Resonance Ion Sources (ECRIS) using resistive oven evaporation, Metal Ions from VOlatile Compounds (MIVOC) method and sputtering technique will be presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP017

About •

paper received ※ 11 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)

MOP024

Development of a Replacement for the Long Radial Probe in the Ring Cyclotron

cyclotron, vacuum, simulation, cavity

86

R. Dölling, G.G. Gamma, V. Ovinnikov, M. Rohrer, P. Rüttimann, R. Senn
PSI, Villigen PSI, Switzerland

The long radial probe in PSI’s Ring cyclotron delivers a radial pattern of all but the first few turns. In recent years, the measurement has been plagued by artefacts and mechanical problems. We report here on the development of a replacement, which should also provide a more flexible basis for extended measurement capabilities.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP024

About •

paper received ※ 20 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)

MOP025

Fast Recharging of Electrostatic Injection and Extraction Septa After Breakdown

ISOL, septum, vacuum, cyclotron

90

R. Dölling
PSI, Villigen PSI, Switzerland
J. Brutscher
Private Address, Dresden, Germany

We propose to recharge an electrostatic injection or extraction septum in a high-power cyclotron fast enough to omit the need for switching off the beam at a high voltage breakdown.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOP025

About •

paper received ※ 20 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)

MOC02

A Pathway to Accelerate Ion Beams up to 3 GeV with a K140 Cyclotron

ECR, cyclotron, ECRIS, ion-source

119

D.Z. Xie, L. Phair, D.S. Todd
LBNL, Berkeley, California, USA

Funding: U.S. Department of Energy, Office of Science, Office of Nuclear Physics under contract number DE-AC02-05CH11231
The capabilities of the K140 88-Inch Cyclotron at Lawrence Berkeley National Laboratory (LBNL) have been extensively enhanced through generations of electron cyclotron resonance ion sources (ECRISs). The cyclotron has evolved from a light-ion accelerator into a proton to uranium accelerator and has accelerated ultra-high charge state heavy ions, such as xenon and uranium. Recently, with 124Xe⁴⁹⁺ ions injected from VENUS (a 3rd generation ECR ion source) the 88-Inch Cyclotron reached a new record of ~ 2.6 GeV.* This is an energy increase of about fifteen-fold over what this K140 cyclotron could achieve when it started operation almost six decades ago. A 4th generation ECR ion source, MARS-D, is under development and will further raise the output energy of the cyclotron. With the higher ion charge states produced that are anticipated with a new ECR ion source, the 88-Inch Cyclotron ought to be able to accelerate ion beams of energies of 3 GeV and higher for the radiation effects testing community. This paper will present and discuss the development of the MARS-D ECR ion source and the 88-Inch Cyclotron’s recent and possible future achievements.
*: D. Z. Xie, W. Lu, J. Y. Benitez, M. J. Regis, Recent Production of Ultra-High Charge State Ion Beams with VENUS, Proc. of the 23rd Int’l Workshop on ECR Ion Sources, Catania, Italy, Sept, 2018.

Slides MOC02 [11.895 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOC02

About •

paper received ※ 16 September 2019 paper accepted ※ 24 September 2019 issue date ※ 20 June 2020

Export •

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

THD01

Physics and Technology of Compact Plasma Traps

ECR, diagnostics, ion-source, electron

321

D. Mascali, G. Castro, L. Celona, S. Gammino, O. Leonardi, M. Mazzaglia, E. Naselli, G. Torrisi
INFN/LNS, Catania, Italy
E. Naselli
Catania University, Catania, Italy

ECR Ion Sources are deemed to be among the most performing ion sources feeding particle accelerators, cyclotrons in particular. Improvements of their performances strictly depend on the knowledge of plasma physics in compact magnetic traps. The paper will comment on the results obtained by the INFN-LNS team and international collaborators by means of a multi-diagnostics setup able to monitor the evolution in space and time of several plasma parameters, simultaneously with beam extraction and analysis in the LEBT, in single vs. double frequency operations, including the RF power and magnetic field scalings, and exploring regimes dominated by plasma turbulence. The results are relevant for the operations of existing ion sources and for the design of new ones. Compact magnetic traps fashioned in a similar way of ECRISs can be considered as an experimental environment by itself: we are exploring this opportunity relying to the in-plasma measurements of radionuclides lifetimes (in particular, beta-decaying elements): CosmoChronometers or nuclei involved in the s-process nucleosynthesis are among the case studies, opening new perspectives in the nuclear astrophysics field.

Slides THD01 [17.662 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THD01

About •

paper received ※ 15 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)