Beam optics of upgraded high energy heavy ion microbeam in Lanzhou

doi:10.1016/j.nimb.2019.09.002

	Beam optics of upgraded high energy heavy ion microbeam in Lanzhou
	Ponomarov, Artem 1; Du, Guanghua 1,3; Guo, Jinlong 1,3; Liu, Wenjing 1,3; Wu, Ruqun 1,3; Li, Yaning 1,3; Sheng, Lina 1; Ponomarev, Alexander 2
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
	2019-12-15
卷号	461 页码:10-15
关键词	High energy heavy ion microbeam Spatial resolution Beam optics simulation Cyclotron Carbon therapy Single event upset
ISSN号	0168-583X
DOI	10.1016/j.nimb.2019.09.002
通讯作者	Du, Guanghua(gh_du@impcas.ac.cn)
英文摘要	In order to expand applications of the Lanzhou microbeam the resent improvements were introduced in its slits, lens system and target chamber. In this study a beam optics of the new system was calculated for the C-12(+6) ion beam of 966 MeV. To compensate a negative influence of a sector magnet dispersion on the beam dynamics an excitation of the magnetic quadrupole between two bending dipoles was determined. By varying parameters of the final triplet of magnetic quadrupole lenses a set of the microbeam systems with a stigmatic focusing were obtained. The best two of them were selected applying an optimization for a beam collimation by object and divergence slits. Simulation of the beam dynamics after the collimation allowed to determine the slit sizes that provide the highest current in the 1 mu m probe on the target for these microbeam systems. Additionally, to improve the beam parameters at the microbeam entrance and then match the system parameters with this beam, the approach of an automatic probe-forming system is proposed. It is aimed at providing the highest possible resolution of the microbeam for the different beam varieties from a cyclotron.
资助项目	National Natural Science Foundation of China (NSFC)[U1632271] ; National Natural Science Foundation of China (NSFC)[11975283] ; CAS President's International Fellowship Initiative (PIFI)[2017PE0042]
WOS关键词	CHARGED-PARTICLE BEAM ; LENS SYSTEM ; QUINTUPLET ; MICROPROBE
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000501391200003
资助机构	National Natural Science Foundation of China (NSFC) ; CAS President's International Fellowship Initiative (PIFI)
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/141280]
专题	中国科学院近代物理研究所
通讯作者	Du, Guanghua
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Gansu, Peoples R China 2.Natl Acad Sci Ukraine, Inst Appl Phys, Sumy, Ukraine 3.Chinese Acad Sci, Univ CAS, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ponomarov, Artem,Du, Guanghua,Guo, Jinlong,et al. Beam optics of upgraded high energy heavy ion microbeam in Lanzhou[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2019,461:10-15.
APA	Ponomarov, Artem.,Du, Guanghua.,Guo, Jinlong.,Liu, Wenjing.,Wu, Ruqun.,...&Ponomarev, Alexander.(2019).Beam optics of upgraded high energy heavy ion microbeam in Lanzhou.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,461,10-15.
MLA	Ponomarov, Artem,et al."Beam optics of upgraded high energy heavy ion microbeam in Lanzhou".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 461(2019):10-15.