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TY - CONF AU - Bai, S. AU - Gao, J. AU - Geng, H. AU - Wang, D. AU - Wang, Y. AU - Yu, C.H. AU - Zhang, Y. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Beam Loss Background and Collimator Design in CEPC Double Ring J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - The Circular Electron Positron Collider (CEPC) is a proposed Higgs factory with center of mass energy of 240 GeV to measure the properties of Higgs boson and test the standard model accurately. Beam loss background in detectors is an important topic at CEPC. Radiative Bhabha scattering and Beamstrahlung effects are dominant mechanism of the beam induced backgrounds at CEPC due to the beam lifetime. In this paper, we evaluated the beam loss background in simulation and designed a series of collimators to suppress the radiation level on the machine and the detector. PB - JACoW Publishing CP - Geneva, Switzerland SP - 632 EP - 634 KW - detector KW - scattering KW - background KW - radiation KW - simulation DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-TUYGBD4 UR - http://jacow.org/ipac2018/papers/tuygbd4.pdf ER -