CAJ | 학술논문

研究设计了一种用于硼中子俘获治疗(BNCT)的紧凑型固定磁场交变梯度(FFAG)加速器。首先采用FFAG加速器磁铁的线性简化模型，计算确定了加速器的基本结构参数；再用WINAGILE程序进行了磁聚焦结构的设计和优化，得到了Beta函数、色散函数、包络函数及工作点等；采用MAD程序对设计结果进行了复算，并对两种程序的计算结果作了进一步的对比分析；最后采用ZGOUBI程序进行非线性磁场下粒子追踪。FFAG加速器的超周期为6，能量为11 MeV，场指数k为1.9，周长为11.1795 m，结构紧凑。分析结果表明，优化设计的FFAG加速器达到了预期的设计目标。
연구설계료일충용우붕중자부획치료(BNCT)적긴주형고정자장교변제도(FFAG)가속기。수선채용FFAG가속기자철적선성간화모형，계산학정료가속기적기본결구삼수；재용WINAGILE정서진행료자취초결구적설계화우화，득도료Beta함수、색산함수、포락함수급공작점등；채용MAD정서대설계결과진행료복산，병대량충정서적계산결과작료진일보적대비분석；최후채용ZGOUBI정서진행비선성자장하입자추종。FFAG가속기적초주기위6，능량위11 MeV，장지수k위1.9，주장위11.1795 m，결구긴주。분석결과표명，우화설계적FFAG가속기체도료예기적설계목표。
A compact FFAG accelerator for Boron Neutron Capture Therapy (BNCT) has been designed. Firstly, a linear simplified magnet model has been applied to calculate the basic parameters of FFAG accelerator;Then the WINAGILE program is used to design and optimize the lattice, as well as to obtain the critical parameters such as the Beta functions, the dispersion functions, the envelopes and the tunes; Also, the MAD program is used to check the design scheme; Finally, the ZGOUBI program is used to simulate the particles movement in the nonlinear magnetic field. The super period of the FFAG accelerator is 6. The energy is 11 MeV and the field index k is 1.9. The structure is compact with the circumference of 11.179 5 m. The results show that this optimized design has achieved the proposal object.