Page 22 - Demo

Ion Source Innovations: Magnetic Filter Without Embedded Magnets Proved
Ion optical system
1.
2.
3. Concaved magnetic field in the
What’s new in the BINP source
Concave magnetic field in the ion optical system
Ion

§ Electron co-extraction is efficiently suppressed: Ie/IH- ~ 0.9

§ Grid fabrication is dramatically simplified
PG
IOS gaps
EG
AG+GG
Active temperature control of extraction and plasma grids (heating/cooling by hot fluid)
Cesium seed to PG periphery
IOS electrodes geometry
Y.Belchenko. “Inductively Driven Surface-Plasma Negative Ion Source ” ICIS 2015, New-York 4
Plasma Grid
Ext 22 wit
24th CAARI – Forth Worth, TX, November 2, 2016 with 21 apertures
Y.Bel
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