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P.31. E.Miginsky, V.Repkov (Budker Institute of Nuclear Physics, Novosibirsk, Russia) Control systems of superconducting magnets fabricated in Budker INP

General principles of automation of superconducting multipole magnets (wigglers) deliv- ered to centers of synchrotron radiation in Germany, Canada, Italy and other countries are described. The following items are considered in the presentation: - monitoring of the ba- sic parameters of a wiggler (temperature distribution, helium consumption, pressure in a cryostat, etc.); - setting and maintaining of the main field (currents); - developing of users interactive codes; - modification of the software according to requests of customers. Main results of works are presented.

Dr. Vladimir Valerevich Repkov: V.V.Repkov@inp.nsk.su

P.32. A. Barladyan, D.Dorohov, S. Tararyshkin (Budker Institute of Nuclear Physics, Novosi- birsk, Russia)

Controller of the piston-type expander machine for cryogenic system of the KEDR detector

Due to a piston-type expander machine of the helium refrigerator with cooling power of 600 W the total consumption of liquid helium by the superconducting magnet system of the KEDR universal electromagnetic detector for general purpose created for experiments with e+e- collider VEPP-4M (BINP, Novosibirsk, Russia) could be decreased by factor of two. For exploiting the expander machine, an electronics controlling its valves and allow- ing adjust a mode of its work is necessary. Developed system consists of the controller and program for PC interacting with it.

Dr. Sergey Vasilievich Tararyshkin: tararyshkin@inp.nsk.su

P.33. A.Batrakov (Budker Institute of Nuclear Physics, Novosibirsk, Russia)

The usage of signal shape digitizer in the daily operation at BINP accel- erator facilities

At present, many parameters at BINP accelerator facilities are continuously measured, using signal shape digitizers. These devices are the part of beam diagnostic systems, mag- net power supply "watch" systems, local experimental setups, control room information systems and so on. Signal shape digitizers have been developed at BINP and directed to physical applications. Physics-friendly features of these devices are discussed. The most popular usages are reported also.

Dr. Alexander Batrakov: batrakov@inp.nsk.su


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