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ion guns model G-1 and G-1-D
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The model G-1 can be operated in an energy range of 500 eV
to 10 keV.
If an ion beam energy less than 500 eV is required, we recommend
using the model G-1-D, which includes the model 400 decelerator
and can produce mass selected ion beams with energies as low
as 1 eV.
The vacuum housing of the model G-1 series is made of a polished
stainless steel tube, 6" in diameter and approximately 19" long.
The length includes the model 500 insulator-mounting flange.
The total length of the G-1-D is 23 1/8" when used with the
model 400 decelerator.
Both Ion Gun housings are supplied with a 6" ID roughing port.
The standard exit flange on the models G-1 and G-1-D are an 8"
OD and 6" ID conflat flange.
The model G-1-D, however, has a 2 3/4" exit flange when used
with the decelerator.
Both the model G-1 and G-1-D are good for vacuum use to
10-7Torr.
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ion guns model G-2 and G-2-D
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The G-2 and G-2-D Ion Guns are both designed to operate in the
500 eV to 10 keV energy range.
The G-2-D Ion Gun however, which has the optional model 400
decelerator, can be used down to 1 eV.
There are two differences between the G-1 and G-2 series Ion Guns.
The G-2 Ion Guns are designed to be bakeable to 200°C,
for use with ultra-high vacuum (UHV) systems.
The magnet coils on the velocity filter are encapsulated in a
stainless steel jacket and are liquid cooled, thus allowing for
higher currents and magnetic field strength.
Colutron recommends the CU-1 cooling unit for magnet and ion
source cooling.
The dimensions of the G-2 and G-2-D are the same as the G-1 and
G-1-D respectively.
Both the G-2 and G-2-D are designed to be good for a vacuum use
to 10-9 Torr.
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power supply requirements for G-1 and G-2 series guns
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ion Source:
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Filament 16 V ~ 20 A, Anode 0 ~ 150 V, 0.4 A
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important:
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Use voltage regulated power supplies for the ion source.
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Lens system:
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0 ~ 10 kV, 1 mA acceleration voltage,
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0 ~ 10 kV, 0.5 mA focussing voltage
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vert. deflection:
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vertical deflection plates: 0 ~ 400 V, 1mA
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velocity filter magnet:
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model G-1: 9.5 V, 3 A continuous operation
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model G-2: 28 V, 14 A continuous operation
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velocity filter
deflection plates:
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0 ~ 300V, 50 mA ( Floating outputs )
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Optional equipment for COLUTRON ion gun systems
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Custom flanges and ports:
Custom flanges and additional ports may be ordered with
the COLUTRON ion gun systems. Contact Colutron for a quote.
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Model 400 beam decelerator:
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Colutron recommends the beam decelerator (model 400) for
ion energies less than 500 eV.
The model G-1-D and model G-2-D include the standard
model G-1 and G-2 respectively with optional model 400
decelerator and model 400-A adaptor flange.
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Ion gun control units:
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Colutron offers control units (E-series) for the above ion
gun systems.
The control units include all power supplies needed to operate
the ion gun as well as a cooling unit for the ion source.
Vacuum gauge controls are also included.
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Beam Viewing Systems:
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The optional Beam Viewing Systems (BVS) make it a snap to tune up
the spatial profile of the ion beam.
The systems are an invaluable aid in the initial startup of the
ion gun.
See sample ion beam profile below.
Features include:
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COLUTRON ion gun control units
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control units for COLUTRON ion guns G-1 and G-2
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E-1 Control Unit for G-1 Ion Gun [ 200 eV ~ 10,000 eV ]
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E-1-D Control Unit for G-1-D Ion Gun [ 1 eV ~ 10,000 eV ]
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E-2 Control Unit for G-2 Ion Gun [ 200 eV ~ 10,000 eV ]
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E-2-D Control Unit for G-2-D Ion Gun [ 1 eV ~ 10,000 eV ]
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photo:
model E-2 control unit
The control units consist of a 65 inch tall cabinet mounted
on casters
and includes the following items:
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Isolation Transformer.
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Ion source supplies (filament, anode) and ion source
thermocouple gauge.
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Acceleration voltage supply.
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Focusing voltage supply.
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Magnet, horizontal and vertical deflection plates supplies.
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Ionization vacuum gauge and thermocouple gauges with control unit.
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Power controls and safety interlocks.
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CU-1 cooling unit (HFC-134a) for ion source and
velocity filter magnet ( G-2, 600-B only ).
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Power supplies and control for ion beam decelerator
( models E-1-D and E-2-D only ).
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Circuit diagram of COLUTRON ion beam kits and gun systems
without decelerator
Circuit diagram of Colutron ion beam kits and gun systems
with decelerator
