Vacuum metal evaporating and coating

I have the method for evaporating of metal in high vacuum. Metal material for evaporating is a wire(like CO2 welding). The speed of
wire is apr. 4cm/sec. The electric arc is created between a wire and a block (made of steel). They are connected to el. current. 50% of wire is evaporated into atoms or ions and the rest is spattering. Equipment is in vacuum. Metal atoms creat the metal coating on the objects in vacuum tank or condensate into metal powder. There is one problem to solve. I need to focus the metal atom beam by a magnet. I do not know the type of magnet suitable for this purpose. Is there someone interesting in this problem?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
You can check it asking to experts on vacuum coatings at my Forum:
PVD Coatings and Vacuum Technology - Research Forum http://groups.yahoo.com/group/PVD_coatings
International Forum about current problems and solutions in R&D thin films and coatings technology based in vacuum surface treatments (Surface Engineering, Industrial Coatings, Plasma Treatment,PVD and CVD coating technology) Moderator: Vasco Teixeira (Univ. Minho)
Vasco Teixeira http://vteixeira.com.sapo.pt/PVD_coatings.htm Posted at: http://www.groupsrv.com
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.