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Development and commissioning of an x-ray beam alignment flag for NSLS-II

MetadataDetails
Publication Date2016-01-01
JournalAIP conference proceedings
AuthorsB. Kosciuk, Yongfeng Hu, Jeffrey W. Keister, Sergei Seletskiy
InstitutionsBrookhaven National Laboratory
Citations1

The NSLS-II Synchrotron Light Source is a 3GeV electron storage ring recently commissioned and is now entering operations at Brookhaven National Laboratory. One of the major tasks was to commission the six project beamline front ends which required a diagnostic to resolve x-ray beam position for the purpose of beam alignment at low current. Since none of the front ends were outfitted with any x-ray diagnostics in the baseline design, an x-ray beam profile monitor or ā€œflagā€ that could be easily installed into existing front end vacuum chambers was proposed to satisfy this requirement. Here we present the development of this novel device which utilizes a polycrystalline CVD diamond luminescent screen to produce a visible image of the x-ray beam cross-section and is then captured with a CCD camera.