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TY - CONF AU - Labat, M. AU - Da Silva, J. AU - Hubert, N. AU - Lepage, F. ED - Schaa, Volker RW TI - Photon Beam Imager at SOLEIL J2 - Proc. of IBIC2018, Shanghai, China, 09-13 September 2018 CY - Shanghai, China T2 - International Beam Instrumentation Conference T3 - 7 LA - english AB - In one of the long straight sections of SOLEIL is installed a pair of canted in-vacuum undulators for the ANATOMIX and NANOSCOPIUM beamlines. Since the upstream undulator radiation can potentially damage the downstream undulator magnets, an accurate survey of the respective alignment of the two devices is mandatory. An XBPM has been initially installed for this purpose in the beamline frontend. For redundancy and further analysis, an X-ray imager was then designed and added just downstream the XBPM. It is made of a diamond plate that can be inserted into the upstream beamline frontend at low current. Fluorescence of the Nitrogen impurities in the diamond is imaged on a CCD to check that the upstream radiation is not hitting the downstream insertion device. We present the commissioning of this new device together with its first results in operation. PB - JACoW Publishing CP - Geneva, Switzerland SP - 425 EP - 428 KW - undulator KW - radiation KW - vacuum KW - operation KW - photon DA - 2019/01 PY - 2019 SN - 978-3-95450-201-1 DO - DOI: 10.18429/JACoW-IBIC2018-WEPB01 UR - http://jacow.org/ibic2018/papers/wepb01.pdf ER -