Veeco MPS-3000 CE, Technical Manual

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17
Accelerator Voltage Display (16)
Indicates the amount of voltage (negative with respect to facility ground)
applied to the accelerator (downstream) extraction grid.
Neutralizer Emission Current Display (17)
Indicates the amount of electron emission current being supplied by the
neutralizer power supply into the ion beam.
Neutralizer Filament Current Display (18)
Indicates the amount of current being supplied by the neutralizer power
supply for heating of the neutralizer filament.
Probe (19)
This feature is not active at this time.
HC Heater Current Display (20)
Indicates the amount of current provided by the Hollow Cathode power
supply for heating the internal hollow cathode.
HC Keeper Voltage Display (21)
Indicates the amount of keeper voltage necessary for the operation of the
internal hollow cathode or shows the setting of the keeper voltage limit.
• When the letters HC is selected on the MODULE switch and
LIMIT is selected on the FUNCTION switch, the keeper voltage
limit will be displayed.
HCN Emission / Heater Current Display (22)
Indicates the emission current or heater current parameters. The display will
show emission current unless HEATER is selected by the FUNCTION switch.
• The emission current indicates the amount of current being
provided by the Hollow Cathode Neutralizer power supply to
neutralize the ion beam.
• The heater current display indicates the amount of current pro-
vided by the Hollow Cathode Neutralizer power supply for
heating the internal hollow cathode neutralizer.
HCN Keeper Voltage Display (23)