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.
| 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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