My choice of aluminum material for TEA laser electrodes

Note: at any picture you can click and magnify to 1488 x 1116 pix





This picture represent my choice of shaped aluminum electrode(s) for TEA laser which planned to build soon.
Edge (blade) have almost perfect rounded shape (like Rogowski profile), and have dimensions less than 1 mm.
Whole piece of aluminum profile is 90 cm long, and I planned cut it to half, so electrodes can be about 45 cm long.







This is only different angle of view. (hmm... picture is little blurry)