ECRIS2016 - List of Keywords (simulation)

Paper	Title	Other Keywords	Page
WEPP32	Magnetic Field Design for 2.45 GHz Negative Hydrogen PMECRIS Chamber using FEM Simulation	ion, plasma, ECR, ECRIS	118
	C. Mallick, M. Bandyopadhyay, R.K. Kumar, S.V. Tewari Institute for Plasma Research, Bhat, Gandhinagar, India
	Funding: Institute For Plasma Research Negative hydrogen ECRIS plasma is confined by NdFeB permanent magnet antenna around cylindrical cavity wall. Measured axial and radial magnetic field is benchmarked with the simulated data. Four axially magnetized ring magnets of remanance flux density of 1.17T is simulated using bounded current ampere's law technique. Gradient of radial and axial magnetic flux density is calculated to estimate lighter ions leaking out of the plasma wall sheath region. The peak values of radial magnetic field gradient between plasma sheath region and cavity outer wall surface increases from 0.1x10⁷ A/m2 to -0.2x10⁷ A/m2 respectively. Axial magnetic field gradient along inner ECR chamber wall increases from -2.1x10⁷ A/m2 to 2.5x10⁷ A/m2 .ECR contour dimensions of 875 Gauss which corresponds to microwave plasma resonating frequency of 2.45GHz is of thickness ~1mm and having major and minor radius of 30mm and 28mm respectively.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP32
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WEPP34	Recent Beam Dynamics Studies for the SCL Demo of RISP	ion, lattice, emittance, rfq	122
	H. Jin, I.S. Hong, J.-H. Jang IBS, Daejeon, Republic of Korea
	The Rare Isotope Science Project (RISP) has been developed the RAON accelerator to accelerate heavy ion and rare isotope beams for the various kinds of science programs. In the RAON accelerator, the beams created by a superconducting electron cyclotron resonance ion source (ECR-IS) will be accelerated by the Radio Frequency Quadrupole (RFQ) after passing through the Low Energy Beam Transport (LEBT) section. These accelerated beams will pass the Medium Energy Beam Transport (MEBT) section for the beam matching and be re-accelerated by the superconducting linac (SCL) for the higher beam energy. Prior to the construction of the RAON accelerator, the performance of each component of LEBT, RFQ, MEBT and SCL should be examined for the efficient mass production. Accordingly, we have been constructing the test facility, which is named SCL demo, since 2015. First beam test with an oxygen beam will be carried out at the end of 2016 and the next test with a bismuth beam will be performed in 2017. In this paper, we will present the beam dynamics studies with the recent lattice design of the SCL demo and describe the simulations results with the oxygen and bismuth beams.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP34
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

WEPP32

Magnetic Field Design for 2.45 GHz Negative Hydrogen PMECRIS Chamber using FEM Simulation

ion, plasma, ECR, ECRIS

118

C. Mallick, M. Bandyopadhyay, R.K. Kumar, S.V. Tewari
Institute for Plasma Research, Bhat, Gandhinagar, India

Funding: Institute For Plasma Research
Negative hydrogen ECRIS plasma is confined by NdFeB permanent magnet antenna around cylindrical cavity wall. Measured axial and radial magnetic field is benchmarked with the simulated data. Four axially magnetized ring magnets of remanance flux density of 1.17T is simulated using bounded current ampere's law technique. Gradient of radial and axial magnetic flux density is calculated to estimate lighter ions leaking out of the plasma wall sheath region. The peak values of radial magnetic field gradient between plasma sheath region and cavity outer wall surface increases from 0.1x10⁷ A/m2 to -0.2x10⁷ A/m2 respectively. Axial magnetic field gradient along inner ECR chamber wall increases from -2.1x10⁷ A/m2 to 2.5x10⁷ A/m2 .ECR contour dimensions of 875 Gauss which corresponds to microwave plasma resonating frequency of 2.45GHz is of thickness ~1mm and having major and minor radius of 30mm and 28mm respectively.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP32

Export •

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

WEPP34

Recent Beam Dynamics Studies for the SCL Demo of RISP

ion, lattice, emittance, rfq

122

H. Jin, I.S. Hong, J.-H. Jang
IBS, Daejeon, Republic of Korea

The Rare Isotope Science Project (RISP) has been developed the RAON accelerator to accelerate heavy ion and rare isotope beams for the various kinds of science programs. In the RAON accelerator, the beams created by a superconducting electron cyclotron resonance ion source (ECR-IS) will be accelerated by the Radio Frequency Quadrupole (RFQ) after passing through the Low Energy Beam Transport (LEBT) section. These accelerated beams will pass the Medium Energy Beam Transport (MEBT) section for the beam matching and be re-accelerated by the superconducting linac (SCL) for the higher beam energy. Prior to the construction of the RAON accelerator, the performance of each component of LEBT, RFQ, MEBT and SCL should be examined for the efficient mass production. Accordingly, we have been constructing the test facility, which is named SCL demo, since 2015. First beam test with an oxygen beam will be carried out at the end of 2016 and the next test with a bismuth beam will be performed in 2017. In this paper, we will present the beam dynamics studies with the recent lattice design of the SCL demo and describe the simulations results with the oxygen and bismuth beams.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ECRIS2016-WEPP34

Export •

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