Electrostatic lens sizing

[Patrick Lindecker]

Hello to all,

For those who need to size electrostatic lenses, the following paper can, possibly, be of some interest for them:
http://f6cte.free.fr/Electrostatic_lens ... _Rev_A.pdf

Patrick Lindecker

[Patrick Lindecker]

Hello to all,

I fixed several bugs of the rev. A version. So here is the Rev. B version:
http://f6cte.free.fr/Electrostatic_lens ... _Rev_B.pdf

Patrick Lindecker

[Roberto Ferrari]

Hi Patrick
Thanks for sharing.
Not useful for my project but a friend of mine, in struggle with an electrostatic accelerator will enjoy your info.

[Patrick Lindecker]

Nice Roberto if this paper can help a bit.

Patrick

[Patrick Lindecker]

Hello to all,

I updated this paper in version C1: http://f6cte.free.fr/Electrostatic_lens ... _Rev_C.pdf
It can be added that the §5.4.2 and the Appendix E of:
http://f6cte.free.fr/Proposal_of_a_prog ... Rev_A1.pdf develop a bit the case "Fusion plasma".

Here is the abstract:
The goal of this presentation is to give some information about the sizing of electrostatic lenses (mainly the focal length), used to focus particles beams. It is proposed a small program and formulas, taking account different parameters (voltages and configuration) in a relative simple way.
This presentation relies on a personal simulator.
A physical explanation of the focusing principle is proposed. It is afterwards explained why a negative potential will also focus a ions beam, even it seems counter-intuitive.
Moreover, it is given the expected behavior of lenses in presence of a strong space charge, or in presence of two different types of plasma (hot ions/cold electrons plasma and fusion neutral plasma).

Patrick Lindecker

[Dennis P Brown]

I hope this gets flag to be included in the FAQ's! This is a very useful resource for not just a deuterium ion accelerator in general but for any 'gun' application.