INTEGRATED POWER SOURCE FOR ELECTRON GUN FOR LINAC

35kV, 1kW

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INTEGRATED POWER SOURCE FOR ELECTRON GUN FOR LINAC

35kV, 1kW

This power source was designed and developed for electron gun load to be connected to linac. This integrated power source includes a power supply for gun injection, cathode heating, a DC and pulsed section for grid control.

TECHNICAL SPECIFICATIONS

PARAMETER SPECIFICATION
Gun Injection Power Supply
Pulse height Variable from 0kV to -35kV peak(max)
Maximum Current 3A peak
Pulse shape Rectangular
Pulse width (measured at the flat top) Adjustable from 4μS to 12μS
Ruse time 2.5μS
Flat top variation (peak to peak) Flatness within 1% with initial overshoot less than 5% of the set value
Pulse Repetition Frequency (RPF) Variable from 1 to 250 pps
Maximum reverse voltage Less than 1.5kV
Maximum average power 360W
Cathode Heater Power Supply
Output Voltage 10V A.C. max
Output Current 10V A.C. max
Regulation Poor regulation
Output Reference Floating at -40kV (output of the gun injection power supply)
Output isolation Minimum -40kV w.r.t. earth under pulsed condition. (Pulsed width: 12μS, PRF:250Hz)
Trip 10Amp
Grid Power Supply (-1kV DC Section)
Output Voltage -1kV DC settable in steps of 100V; the Grid is at negative potential with respect to the cathode
Output Current 200mA DC max
Pulse shape Rectangular
Type of control Voltage regulated with load regulation <_ ±0.1%
Output reference Floating at -40kV (output of the pulsed gun injection power supply section)
Output isolation Minimum -45kV w.r.t earth under DC condition.
Grid Power Supply (1kV PULSED Section)
Output Voltage (Pulsed) Pulsed amplitude settable from 1V to 1kV DC precisely variable in continuous manner. This pulse overrides the -1kV DC voltage at the grid
Pulse Shape Rectangular
Pulse width (measured at the flat top) Adjustable from 4μS to 10μS
Rise time 0.5μS
Flat top variation (peak to peak) Flatness within 1% with initial overshoot less than 5% of the set value.
Output Current 10mA max.
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