PHYSICS DESIGN OF CYCIAE-70 EXTRACTION AND BEAMLINE SYSTEM

A driver with beam power of 50KW (70 MeV, 0.75 mA)<br />based on compact H-/D- cyclotron, CYCIAE-70, has been<br />designed at CIAE in Beijing for the RIB production and<br />application in the nuclear medicine recently. CYCIAE-70<br />is designed to be a dual particle cyclotron and it is able to<br />deliver proton with energy in the range 35~70 MeV and<br />deuteron beam with energy in a range of about 18~33<br />MeV. About 700&mu;A for H+ and 40&mu;A for D+ will be<br />extracted in dual opposite directions by charge exchange<br />stripping devices and the extraction beam energy is<br />continuously adjustable. The physics design of CYCIAE-<br />70 stripping system has been done and the optics<br />calculation for the extraction proton and deuteron beam<br />has been finished. The dispersion effects for the extracted<br />beam are analyzed and the beam parameters after<br />extraction are calculated. 6 beam transport lines and<br />experiment target stations are designed for different<br />applications. A wobbling magnet is used in one of the<br />beam transport lines, which will rotate the beam to form a<br />beam spot on the target with a size of Ф40mm and<br />uniformity of better than 95%.IMP;Chinese Academy of Science