A Cost-Efficient PC Based Frame Grabber as Beam Diagnostic Tool in an EPICS Environment

Details A Cost-Efficient PC Based Frame Grabber as Beam Diagnostic Tool in an EPICS Environment A Cost-Efficient PC Based Frame Grabber as Beam Diagnostic Tool in an EPICS Environment

2001-11-14

arxiv.org/abs/physics/0111127v2

eConf C011127 (2001) THAP045

Physics

Instrumentation and Detectors

Poster Paper for ICALEPCS-2001 (THAP045), LaTeX, 3 pages, revised version

Scientific paper

Analysis of video images is a common way to determine the properties of an electron or synchrotron radiation beam. At BESSY a cost-efficient frame grabber hardware controlled by a Windows PC allows one to perform such an analysis in real-time. Live video images on the PC monitor give operators a direct view of the beam, optionally enhanced by artificial coloring and graphical overlays. The application software has been integrated into the EPICS environment by including a Channel Access (CA) server. Thus the numerical results and the application's control commands are accessible over a network through CA Process Variables. A newly developed C++ class library is used to provide the variables with the usual attributes required by advanced CA clients such as graphical display managers.

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