论文标题
杂散磁场的测量和建模及其对380 GEV的紧凑型线性对撞机的影响
Measurements and modelling of stray magnetic fields and the simulation of their impact on the Compact Linear Collider at 380 GeV
论文作者
论文摘要
紧凑型线性对撞机（CLIC）靶向碰撞点处的纳米光束尺寸。意识到这种光束尺寸需要产生和运输超低发射光束。动态缺陷会偏转碰撞光束，从而导致相对偏移的碰撞。它们还可以降低每个光束的发射。这两种效果都可以显着影响clic的光度。在本文中，我们研究了新考虑的动态缺陷：流浪磁场。提出了大型强子对撞机隧道中杂散磁场的测量，并用于开发一个统计模型，该模型可用于现实地在模拟中实际生成流浪磁场。该模型用于在380GEV的CLIC的集成模拟中，包括缓解系统的杂散磁场，以评估其对光度的影响。
The Compact Linear Collider (CLIC) targets a nanometre beam size at the collision point. Realising this beam size requires the generation and transport of ultra-low emittance beams. Dynamic imperfections can deflect the colliding beams, leading to a collision with a relative offset. They can also degrade the emittance of each beam. Both of these effects can significantly impact the luminosity of CLIC. In this paper, we examine a newly considered dynamic imperfection: stray magnetic fields. Measurements of stray magnetic fields in the Large Hadron Collider tunnel are presented and used to develop a statistical model that can be used to realistically generate stray magnetic fields in simulations. The model is used in integrated simulations of CLIC at 380GeV including mitigation systems for stray magnetic fields to evaluate their impact on luminosity.
