Anode layer slit ion source
AssigneeGeneral Plasma, Inc.
InventorJohn E. Madocks
Life of this patent
Estimating the term…
Abstract
A linear anode layer ion source is provided that includes a top pole having a linear ion emitting slit. An anode under the top pole has a slit aligned with the top pole ion emitting slit. At least one magnet creates a magnetic field that passes through the anode slit. Wherein the width of the anode slit is 3 mm or less. A process of generating an accelerated ion beam is also provided that includes flowing a gas into proximity to said anode. By energizing a power supply electron flow is induced to the anode and the gas is ionized. Accelerating the ions from the anode through the linear ion emitting slit generates an accelerated ion beam by a process superior to that using a racetrack-shaped slit.
Claims9
A linear anode layer ion source comprising:
- a top pole having an ion emitting slit;
- an anode under said top pole, said anode having a slit aligned with the top pole ion emitting slit;
- at least one magnet to create a magnetic field passing through said anode slit wherein the width of the anode slit is less than 3 mm.
The process of claim 18 further comprising trapping electrons in a closed drift confinement between said top pole and a bottom pole under said anode
Dependencies are inferred from the claim text.