【摘 要】
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A linear accelerator as a new injector for the SSC(Separated Sector Cyclotron)of the HIRFL(Heavy Ion Research Facility Lanzhou)is being designed.The DTL(Drift-T
【机 构】
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Graduate University of Chinese Academy of Sciences,School of Nuclear Science and Technology Lanzhou
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A linear accelerator as a new injector for the SSC(Separated Sector Cyclotron)of the HIRFL(Heavy Ion Research Facility Lanzhou)is being designed.The DTL(Drift-Tube-Linac)has been designed to accelerate 23Su34+from 0.140 MeV/u to 0.97 MeV/u.To the first accelerating tank which accelerates23SU34+to 0.54 MeV/u,the approach of Alternating-Phase-Focusing(APF)is applied.The phase array isobtained by coupling optimization software Dakota and beam optics code LINREV.With the hybrid of Multiobjective Genetic Algorithm(MOGA)and a pattern search method,an optimum array of asynchronous phases is determined.The final growth,both transversely and longitudinally,can meet the design requirements.In this paper,the deign optimization of the APF DTL is presented.
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