[quote author=Fu-Kwun Hwang link=topic=182.msg801#msg801 date=1116403857]
You can change the radius or distance between two coil and set up a magnetic mirror field.
The field can trapped charged particle between two coils.
<applet code="mirrorfield.mirrorfieldApplet.class"  codebase="/ntnujava/ejs/" archive="_library/ejsBasic.jar,_library/userJars/ejsContrib.jar,mirrorfield.jar"        name="mirrorfield"  id="mirrorfield"        width="527" height="525"></applet>
[/quote]
I need source code Helmholtz coil. I want conference that
Thanks