CLIC Muon Sweeper Design
  There are several background sources which may affect the analysis of data and detector performans at the CLIC project. One of the important background source is halo muons, which are generated along the beam delivery system (BDS), for the detector performance. In order to reduce muon background, magnetized muon sweepers have been used as a shielding material that is already described in a previous study for CLIC [1]. The realistic muon sweeper has been designed with OPERA. The design parameters of muon sweeper have also been used to estimate muon background reduction with BDSIM Monte Carlo simulation code [2, 3]. 
A. Aloev, H. Burkhardt, L. Gatignon, M. Modena, B. Pilicer, I. Tapan
physics.acc-ph hep-ex