论文标题
通过振荡偶极校正器在PIP2IT加速器处找到光束丢失位置
Finding Beam Loss Locations at PIP2IT Accelerator With Oscillating Dipole Correctors
论文作者
论文摘要
PIP2IT加速器在2014年至2021年以多个阶段组装，以测试Fermilab正在构建的未来PIP -II Linac的概念和组件。在最终配置中，PIP2IT加速了0.55 ms x 20 Hz x 2 mA H-梁至16 MeV。为了确定辐射监测器无效的高能量部分中梁损耗的位置，实现了使用振荡轨迹的方法。如果将梁以孔径限制刮擦，则将其质心用位于上游的两个偶极校正器移动并同步振荡，则在损耗点下游的BPM总和信号中以相应的频率产生一条线。沿光束线的这些响应的比较允许找到损失位置。本文描述了其在PIP2IT实施的方法和结果。
The PIP2IT accelerator was assembled in multiple stages in 2014 - 2021 to test concepts and components of the future PIP-II linac that is being constructed at Fermilab. In its final configuration, PIP2IT accelerated a 0.55 ms x 20 Hz x 2 mA H- beam to 16 MeV. To determine location of the beam loss in the accelerators low-energy part, where radiation monitors are ineffective, a method using oscillating trajectories was implemented. If the beam is scraped at an aperture limitation, moving its centroid with two dipole correctors located upstream and oscillating in sync, produces a line at the corresponding frequency in spectra of BPM sum signals downstream of the loss point. Comparison of these responses along the beam line allows to find the loss location. The paper describes the method and results of its implementation at PIP2IT.
