标题： CMS超导线圈内高粒度量热器不锈钢吸收体错位的力的计算 显示英文标题

标题： Calculation of Forces to the High Granularity Calorimeter Stainless Steel Absorbers Misaligned inside the CMS Superconducting Coil

摘要： 通用型紧凑缪子螺线管（CMS）探测器位于欧洲核子研究中心（CERN）的大型强子对撞机（LHC）上，包括强子量能器，用于记录质子-质子对撞产生的带电和中性强子的能量，在质心系能量为13.6 TeV的情况下。量能器位于直径为6米、长度为12.5米的超导螺线管内部，该螺线管以18.164 kA的直流电流运行，产生中心磁通密度为3.81 T的磁场。为了最佳适应高堆积和高辐射环境的高亮度LHC，现有的CMS端盖量能器将被一个新的高颗粒度量能器（HGCal）取代，该量能器包括电磁部分和强子部分。HGCal每个端盖的强子部分将包括22块不锈钢吸收板，其相对磁导率值在中心磁通密度为3.81 T时为1.000588。通过使用之前描述的计算方法，利用CMS磁铁的三维计算机模型，计算了由于HGCal端盖相对于线圈轴的正交和角度不对准而对吸收板产生的电磁力。 显示英文摘要

摘要： The general-purpose Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC) at CERN includes the hadronic calorimeter to register the energies of the charged and neutral hadrons produced in the proton-proton collisions at the LHC at a centre of mass energy 13.6 TeV. The calorimeter is located inside the superconducting solenoid of 6 m in diameter and 12.5 m in length operating with a direct current of 18.164 kA that creates the central magnetic flux density of 3.81 T. To fit optimally to the high pileup and high radiation environment of the High Luminosity LHC, the existing CMS endcap calorimeter will be replaced with a new high granularity calorimeter (HGCal) comprising the electromagnetic and hadronic sections. The hadronic section in each of two endcaps of the HGCal will include 22 stainless steel absorber plates with a relative permeability value of 1.000588 at to the central magnetic flux density of 3.81 T. The calculation of the electromagnetic forces to the absorber plates due to orthogonal and angular misalignments of the HGCal endcaps with respect to the coil axis is performed with a three-dimensional computer model of the CMS magnet using the method of calculation described earlier.