Author： Bogolyubskii M. Viktorov V. Petrov V. Polishchyuk B. Sadovskii S. Sen’ko V. Soldatov M. Solov’ev A. Stolpovskii P. Kharlov Yu. Yakimuk V. Kuz’min N. Petukhov Yu. Rusakovich N. Cychkov S. Flyagin V.
Publisher： MAIK Nauka/Interperiodica
ISSN： 0020-4412
Source： Instruments and Experimental Techniques, Vol.49, Iss.1, 2006-01, pp. : 61-68
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Abstract
The structure of the fast data acquisition system collecting data from multichannel particle detectors for experiments on an accelerator, which is based on MISS electronics, is described. A special feature of the architecture used is the ЛЭ-74 specialized controller that independently reads data from the detectors into the internal memory buffer on a real-time scale in the course of the beam spilling into the target. The stored information is rewritten from the internal buffer on the hard disk of the computer. The data are further transmitted via the local network in intervals between spills. This scheme allows one to avoid accessing slow peripherals in the course of the beam spill and, thus, to attain a speed that is only limited by the response speed of the used circuitry components. In tests conducted as part of the Hyperon-M experiment on the U-70 accelerator, an experimental data collection speed of up to 9 Mbyte/s was attained, which is comparable with the data transmission speed in existing local communication networks.
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