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TY - CONF AU - Yang, B.X. AU - Lee, S.H. AU - Morgan, J.W. AU - Shang, H. ED - Schaa, Volker RW TI - High-Energy X-Ray Pinhole Camera for High-Resolution Electron Beam Size Measurements J2 - Proc. of IBIC2016, Barcelona, Spain, Sept. 13-18, 2016 C1 - Barcelona, Spain T2 - International Beam Instrumentation Conference T3 - 5 LA - english AB - The Advanced Photon Source (APS) is developing the design of a multi-bend achromat (MBA) lattice based storage ring as the next major upgrade, featuring a 20-fold reduction in emittance. Combining the reduction of beta functions, the electron beam sizes at bend magnet sources may be reduced to reach 5 - 10 μm for 10% vertical coupling. The x-ray pinhole camera currently used for beam size monitoring will not be adequate for the new task. By increasing the operating photon energy to 120 keV or higher, the pinhole camera's resolution is expected to reach below 4 μm. The peak height of the pinhole image will be used to monitor relative changes of the beam sizes and enable the feedback control of the emittance. We present the computer simulation and the design of a prototype beam size monitor for the APS storage ring. PB - JACoW CP - Geneva, Switzerland SP - 505 EP - 508 KW - detector KW - photon KW - operation KW - emittance KW - electron DA - 2017/02 PY - 2017 SN - 978-3-95450-177-9 DO - 10.18429/JACoW-IBIC2016-TUPG66 UR - http://jacow.org/ibic2016/papers/tupg66.pdf ER -