超导SHMS磁体场泄漏引起的初级波束转向
Primary Beam Steering Due to Field Leakage from Superconducting SHMS Magnets
摘要：
模拟的磁场从超高动量光谱仪在大厅C在托马斯·杰斐逊国家加速器设施显示出显着的字段泄漏到该区域的主束线之间的目标和束流收集器。在没有缓解的情况下，这些残余场将使未散射的波束转向到足以将波束操作限制在小散射角。这里介绍的是光谱仪磁体的磁场模拟和使用最小量的屏蔽铁围绕束线的最佳位置的解决方案。
英文摘要：
Simulations of the magnetic fields from the Super High Momentum Spectrometer in Hall C at Thomas Jefferson National Accelerator Facility show significant field leakage into the region of the primary beam line between the target and the beam dump. Without mitigation, these remnant fields will steer the unscattered beam enough to limit beam operations at small scattering angles. Presented here are magnetic field simulations of the spectrometer magnets and a solution using optimal placement of a minimal amount of shielding iron around the beam line.
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