| Title |
Magnetic Field Design for 2.45 GHz Negative Hydrogen PMECRIS Chamber using FEM Simulation |
| Authors |
- C. Mallick, M. Bandyopadhyay, R.K. Kumarpresenter, S.V. Tewari
Institute for Plasma Research, Bhat, Gandhinagar, India
|
| Abstract |
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.
|
| Funding |
Institute For Plasma Research |
| Paper |
download WEPP32.PDF [2.390 MB / 4 pages] |
| Export |
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| Conference |
ECRIS2016, Busan, Korea |
| Series |
International Workshop on ECR Ion Sources (22nd) |
| Proceedings |
Link to full ECRIS2016 Proccedings |
| Session |
Poster session |
| Date |
31-Aug-16 15:20–17:20 |
| Main Classification |
Theory and simulation |
| Keywords |
ion, plasma, ECR, simulation, ECRIS |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-186-1 |
| Published |
October 2016 |
| Copyright |
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