Abstract
Integral Split Ring (ISR) RFQ accelerators with four mini-vanes have been developed at Peking University. A 26 MHz RFQ prototype with cavity diameter of 50 cm was constructed. N +, O + and O − ions have been accelerated to 300 keV at inter-vane rf voltage of 80 kV. It showed that the RFQ suits to accelerate heavy ions at low rf frequency stably and effectively. Now a 26 MHz ISR RFQ has been designed and is being constructed, which cavity diameter and length of 75 and 260 cm, respectively. O + and O − ions will be accelerated to 1 MeV at rf voltage of 70 kV. All the results and discussions are presented in this paper.
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