Since these fibers are charged, they can be deflected by a
transverse electric field created between two metal plates.
After the jet comes out of the msverse field region it
travels in the deflected direction towards the metal
collection screen. The dimensions of the deflecting plates
were 7.5 cm x 7.5 cm separated by 12 cm. The typical
value of electric field between the plates was in the range of
200 V/m to 500 V/m. Deflections of up to 15' were
obtained.