Introduction
rod allows a stable ball to be formed and low evaporation rates to be sustained. Niobi-
um and may also be evaporated in this way although with 3-4 mm rods and also platin-
um but with 2 mm rods.
Materials which melt before developing useful partial pressures (such as aluminium or
gold) must be evaporated from a crucible, as must insulators, such as alumina. The cru-
cible material must be chosen to have a vapour pressure very much lower than that of
the material being evaporated. It should also not react with the evaporant.
Please contact SPECS for more information on material compatibility.
1.3 Safety Instructions
Beware!
This source and its associated power supplies contain lethally high voltages and
should not be used by anybody except trained, qualified personnel
Improper use may lead to serious injury or death.
Particularly hazardous are the high voltages associated with the e-beam
acceleration. The voltages may reach >4 kV peak and currents may reach >200
mA.
The cable is encased in robust anti-scuff protection.
HOWEVER, always inspect the cables before operation and do not operate the
source under any circumstances if the cables appear in any way damaged, frayed
or loose.
Warning
Before any electric or electronic operations please consult “SPECS Safety
Instructions” and follow them strictly.
Attention
Tests to be performed on the electronic unit are when the cover is removed.
Hazardous voltages are present. Only trained, qualified personnel are allowed to
perform this task.
2 EBE-1
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