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Development of 1 MV tandem proton accelerator

A 1MV Tandem Proton Accelerator is being developed for the industrial applications such as high-energy implantation and explosive detection. The proton accelerator consists of a 10 mA negative hydrogen ion source, two Einzel lenses, accelerating tubes, a gas stripper, a 1MV 30 mA Cockroft-Walton high voltage power supply, vacuum pumping system, and a high pressure insulating gas system. The large current proton beam can be accelerated into the optical system, which is designed with simulation which includes space charge effects. The simple optical geometry is adapted for the optics design for the accelerator. The 2 MV/m accelerating tube is being developed for this accelerator, and the detail of the accelerator development is reported.