Transfer line including vacuum differential system for a high-power windowless target,Physical Review Accelerators and Beams

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Transfer line including vacuum differential system for a high-power windowless target
Physical Review Accelerators and Beams ( IF 1.7 ) Pub Date :
Yuanshuai Qin, Peng Zhang, Hanjie Cai, Yaling Zhang, Huan Jia, Yuan He, Junhui Zhang, Wenlong Zhan

As the highest power proton linear accelerator (linac) in continuous wave (CW) mode, China initiative Accelerator Driven sub-critical System (CiADS) linac will deliver 2.5 MW proton beam to the target inside the reactor. Vacuum transition from

5 \times 10^{4}

Pa to

1 \times 10^{- 6}

Pa is required at the Accelerator to Target (A2T) section. A vacuum differential system (VDS) located at the High Energy Beam Transport (HEBT) 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 increasement are at an acceptable level at the first stage of VDS.

更新日期：2020-09-08

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