2.4 IN STALLING A SEC OND SOURCE
If two elec tron beam sources are to op er ate on one source tray, they must be in stalled fac ing op po site di rec -
tions. In ad di tion, a mumetal-and-stain less-steel shield as sem bly must be in stalled be tween them to pre vent
mag netic in ter fer ence be tween the two sources. The mumetal-and-stain less-steel shield must not in ter fere
with the op er a tion of the dy namic parts in the PopTop source. Fig ures 2-5 and 2-6 il lus trate two meth ods of
mount ing such a shield as sem bly.
Installation
STIH-270-2PT
0101-9004-0A
2-15
Figure 2-5. Magnetic shield mounted to water lines in two-gun installation
Mounting hardware
clamped to water
Magnetic Shield
29-ga. mumetal
29-ga. stainless steel
Note: Magnetic shield must
extend ½” beyond both guns
in all directions (i.e., above,
below, in front, and in
