CBETA: First Multipass Superconducting Linear Accelerator with Energy Recovery
CBETA: First Multipass Superconducting Linear Accelerator with Energy Recovery
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DOI：
10.1103/physrevlett.125.044803
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发表时间：
2020-07-23
影响因子：
8.6
通讯作者：
Miyajima, T.
中科院分区：
文献类型：
--
作者：
Bartnik, A.;Banerjee, N.;Miyajima, T.
能量回收已经在多程直线加速器中实现，展示了在更高电流和降低能耗下操作的更紧凑的粒子加速器的技术。在前四次通过加速结构的过程中传递给束的能量在随后的四次减速过程中被回收。通过使用超导加速腔和永磁体实现了高能效。用于返回回路的固定场交变梯度光学系统成功地在一个共同的真空室中传输了42，78，114和150 MeV的电子聚束。这种新型加速器是一种八通道能量回收直线加速器，它有可能加速比现有直线加速器高得多的电流，同时保持小的束流尺寸，每个电子消耗的能量要少得多。
Energy recovery has been achieved in a multipass linear accelerator, demonstrating a technology for more compact particle accelerators operating at higher currents and reduced energy consumption. Energy delivered to the beam during the first four passes through the accelerating structure was recovered during four subsequent decelerating passes. High-energy efficiency was achieved by the use of superconducting accelerating cavities and permanent magnets. The fixed-field alternating-gradient optical system used for the return loop successfully transported electron bunches of 42, 78, 114, and 150 MeV in a common vacuum chamber. This new kind of accelerator, an eight-pass energy recovery linac, has the potential to accelerate much higher current than existing linear accelerators while maintaining small beam dimensions and consuming much less energy per electron.