Title :
Beam transport line of CIAE medical cyclotron and its magnetic elements design studies
Author :
Zhang, Tianjue ; Chu, Chenjie ; Fan, Mingwu
Author_Institution :
China Inst. of Atomic Energy, Beijing, China
Abstract :
More than 300 μA proton beam has to be transported from exit of a cyclotron to target. The final beam spot less than Φ8 mm in diameter was asked. To reduce the cost of the system the beam aperture is limited to 50 mm in diameter and the magnetic elements are carefully designed with easier fabrication and loose tolerance. For example, the cross section of the pole faces of the quadrupoles are broken line shaped instead of hyperbola. And the two steering magnets have been added to control the vertical and horizontal position of the beam on the target
Keywords :
beam handling equipment; biomedical equipment; cyclotrons; proton accelerators; 300 muA; 50 mm; CIAE medical cyclotron; beam transport line; fabrication; magnetic elements; proton beam; steering magnets; tolerance; Apertures; Atomic beams; Costs; Cyclotrons; Fabrication; Magnetic fields; Magnets; Partial response channels; Particle beams; Radioactive materials;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308932
