Paper | Title | Page |
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THPME022 | Recent Progress of the SSC-LINAC RFQ | 3265 |
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Funding: NFSC(11079001) The project of SSC-LINAC RFQ has important progresses in the past year. The machine has been moved to the Institute of Modern Physics in the first season of 2013. The cavity measurement including tests of RF performance and field distribution is carried out again in the laboratory. The Q0 is 6440, and the unflatness of the electric field in longitudinal is ±2.5%. The results demonstrated a good agreement with simulation. The RF and beam commissioning of the RFQ has been carried out in the first half of 2014. The duty factor rose from 5% to CW gradually. By now, the cavity has been operated with 35 kW on CW mode. The measurement of the bremsstrahlung spectrum reveals that the 35 kW power is needed to generate the 70 kV inter-vane voltage. The beam transmission efficiency and energy spread has been obtained in beam commissioning by accelerating 16O5+ and 40Ar8+ beams. The efficiency of 40Ar8+ is as high as 94%, and the output energy is 142.78 keV/u. All the processes and results of the experiments will be discussed in details. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME022 | |
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THPME027 | Development of the injector II RFQ for China ADS project | 3280 |
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As one of the main components of the injector II of China ADS LINAC project, an RFQ working at 162.5MHz is used to accelerate proton beams of 15mA from 30 keV to 2.1 MeV. The four vane RFQ has been designed in collaboration with Lawrence Berkeley National Laboratory and built at the workshop of the Institute of Modern Physics, Chinese Academy of Sciences (IMP, CAS). Low power test of the cavity have been completed, and it shows the field flatness is within ±1% and the unloaded Q is 12600. RF conditioning has been completed, results of preliminary beam test show the output beam energy is 2.16 MeV with energy spread of 3.5% and the transmission efficiency is 97.9%. Continuous wave (CW) beam of 2.3 mA has been accelerated for more than one hour. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME027 | |
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