Transfer line including vacuum differential system for a high-power windowless target

As the highest power proton linear accelerator in continuous wave mode, China initiative Accelerator Driven sub-critical System linear accelerator will deliver 2.5 MW proton beam to the target inside the reactor. Vacuum transition from5×104Pato several10−6Pais required at the accelerator to target s...

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Bibliographic Details
Published inPhysical review. Accelerators and beams Vol. 23; no. 11; p. 113002
Main Authors Qin, Yuanshuai, Zhang, Peng, Cai, Hanjie, Zhang, Yaling, Jia, Huan, Yuan, Chenzhang, He, Yuan, Zhang, Junhui, Zhan, Wenlong
Format Journal Article
LanguageEnglish
Published College Park American Physical Society 01.11.2020
Subjects
Collimators
Continuous radiation
Loss control
Proton beams
Transfer lines
Vacuum tests
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Summary:As the highest power proton linear accelerator in continuous wave mode, China initiative Accelerator Driven sub-critical System linear accelerator will deliver 2.5 MW proton beam to the target inside the reactor. Vacuum transition from5×104Pato several10−6Pais required at the accelerator to target section. A vacuum differential system located at the transfer line is designed to meet the requirement of the windowless target and upstream collimators are considered for power loss control in this paper. A vacuum test based on vacuum transition verifies that about 10 orders of magnitude vacuum transition could be achieved as required, and gas scattering simulation shows that the power loss and beam size increase are at an acceptable level before the last magnet.
ISSN:2469-9888
2469-9888
DOI:10.1103/PhysRevAccelBeams.23.113002