Test results of the proton injector of the Proton Engineering Frontier Project accelerator

Hyeok-Jung Kwon; Han-Sung Kim; Yong-Sub Cho

doi:10.1063/1.2816916

Test results of the proton injector of the Proton Engineering Frontier Project accelerator

Rev Sci Instrum. 2008 Feb;79(2 Pt 2):02C707. doi: 10.1063/1.2816916.

Authors

Hyeok-Jung Kwon¹, Han-Sung Kim, Yong-Sub Cho

Affiliation

¹ Proton Engineering Frontier Project, Korea Atomic Energy Research Institute, Daejeon, Republic of Korea. hjkwon@kaeri.re.kr

PMID: 18315260
DOI: 10.1063/1.2816916

Abstract

One of the goals of the Proton Engineering Frontier Project (PEFP) is to develop a 100 MeV proton accelerator. As a low energy part, a 20 MeV proton linac has been developed and tested. The 20 MeV accelerator consists of a 50 keV proton injector, a 3 MeV radio frequency quadrupole, and a 20 MeV drift tube linac. The proton injector includes a duoplasmatron type ion source and a low energy beam transport. After a preliminary test with 1 mA peak current of the 20 MeV accelerator, the proton injector was modified with the goal of increasing the 20 MeV beam current up to 20 mA peak value. The modifications include the reduction of the proton injector length, installation of a beam current monitor, and electron trap and supplement of the solenoid and steering magnets. In this paper, the modifications of the PEFP proton injector are described and initial test results are presented.