Recent developments at Pelletron

Various developments to improve the performance of the Pelletron accelerator have been implemented over the last decade.

¨     Installation of resistor chains

For a steady operation of the electrostatic accelerator, the uniform division of the high voltage is essential and was achieved in the original design using sharp corona needles. These corona needles required a frequent replacement because of the degradation in performance due to aging.  This problem was overcome by replacing the needles with large value resistors  (1 Giga ohm), which has resulted in a remarkable improvement in the voltage stability. Moreover, the machine can be operated at very low terminal voltages, which was not possible earlier.

¨     An electrostatic offset quadrupole (charge selector) at the terminal of the Pelletron has been designed and fabricated to minimize electronic loading from undesired charge states (after stripping in the terminal section).

¨     To facilitate easy beam changes, a multi cathode target wheel for SNICS ion source has been fabricated.

¨     High current proton irradiation setup (6m level)

¨     Installation of new accelerating tube at ion source

¨     Upgraded RF control electronics for bunching system

¨     Re-circulating turbo pumping system for Terminal gas stripper

¨     Major civil repairs of Experimental hall, Accelerator tower and Laboratory block

¨     Upgraded electrical distribution & emergency DG

¨     Multi-cathode SNICs source


Contact  Dr.A.K.Gupta  for further information

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