Abstract
A four-vane continuous wave (CW) RFQ has been designed for the injector II LINAC of China ADS project. To acquire the experience of a CW RFQ on design, tuning, conditioning, running, etc., a 1-m-long RFQ accelerator prototype has been built. Working at 162.5MHz, the RFQ prototype accelerates protons of 10mA from 20keV to 560keV in one meter length with a low inter-vane voltage of 65kV and a safe Kilpatric factor of 1.3. Conditioning and beam test of the accelerator prototype have been completed, and it shows the transmission efficiency can reach 90% with a 10mA CW proton beam. Design, fabrication and tests of the RFQ prototype will be presented in detail in the paper.
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