A 2.45 GHz intense proton source and low energy beam transport system for China Initiative Accelerator Driven Sub-Critical reactor system

Q Wu; Z M Zhang; L T Sun; Y Yang; H Y Ma; Y Cao; X Z Zhang; H W Zhao

doi:10.1063/1.4824804

A 2.45 GHz intense proton source and low energy beam transport system for China Initiative Accelerator Driven Sub-Critical reactor system

Rev Sci Instrum. 2014 Feb;85(2):02A703. doi: 10.1063/1.4824804.

Authors

Q Wu¹, Z M Zhang¹, L T Sun¹, Y Yang¹, H Y Ma¹, Y Cao¹, X Z Zhang¹, H W Zhao¹

Affiliation

¹ Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.

PMID: 24593437
DOI: 10.1063/1.4824804

Abstract

At Institute of Modern Physics, a cw 35 keV, 20 mA intense proton source and the low energy beam transport system (LEBT) have been developed for China Initiative Accelerator Driven Sub-Critical reactor system. In order to ensure high quality transmission of the intense ion beam from the exit of ion source to Radio Frequency Quadrupole (RFQ), a low energy beam transport line is used to focus beam to the RFQ entrance and match the Twiss parameters to the RFQ requirements. The 35 keV, 20 mA ion beam extracted by a three-electrode extraction system from the ion source passes through the LEBT to the RFQ entrance and the root-mean-square emittance is measured to be less than 0.2 π mm mrad. The commissioning results of the ion source and low energy beam transport system are described in this paper. The beam quality and transmission efficiency are also studied.