共 4 条
- [2] YAMAGUCHI T, 2005, P INT C NUCL PHYS ST, P297
- [3] YAMAGUCHI Y, 2008, NUCL INST B IN PRESS, V266
BEAM OPTICS SIMULATION OF RARE-RI RING AT RI BEAM FACTORY IN RIKEN
被引：3
作者：
Arai, I.
[1
]
Ozawa, A.
[1
]
Yasuda, Y.
[1
]
Fujinawa, T.
[2
]
Fukunishi, N.
[2
]
Ohnishi, T.
[2
]
Goto, A.
[2
]
Hara, K. Y.
[2
]
Sakurai, H.
[2
]
Wakasugi, M.
[2
]
Yamaguchi, Y.
[2
]
Yano, Y.
[2
]
Suzuki, T.
[3
]
Yamaguchi, T.
[3
]
Kikuchi, T.
[4
]
Ohtsubo, T.
[5
]
机构：
[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058577, Japan
[2] RIKEN, Wako, Saitama 3510198, Japan
[3] Saitama Univ, Saitama 3388570, Japan
[4] Nagaoka Univ Technol, Niigata 9402188, Japan
[5] Niigata Univ, Niigata 9502181, Japan
关键词：
D O I：
10.1142/S0218301309012550
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The cyclotron-like storage ring dedicated to Rare-RI Ring project consists of 6 magnetic sectors and 6 straight sections, having a circumference of 56.13 m. The magnetic sector works for both bending and focusing. The total circulation is assumed to be 1,000 turns. Over the momentum range from 1% to +1% in Delta p/p, the required isochronisity is 10(-6) while the beam emittance is sevaral tens of pi mm-mrad. To examine the design of cyclotron-like storage ring and fix its parameters, we have developed a high precision beam optics simulation. To achieve the precision as high as possible with in a feasible computational time, we have adopted a geometrical tracking assuming a circular orbit for a small spatial segment. For that purpose, it is enough that the magnetic sector is divided into 150 sub-sectors in calculation. In each sub-sector, the magnetic field is given as a function of radial position but uniform around the vicinity of beam trajectory. The beam trajectory is evaluated in 4th order Runge-Kutta algorithm. Finally, we have achieved a precision of 10(-9) in Delta T/T and a computational time of 1.8 sec on atypical PC server for ray tracing of single particle undergoing a circulation of 1,000 turns.
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页码：498 / 504
页数：7
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