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[en] 7 Tesla 17-pole superconducting wiggler with a 19 mm magnetic gap and 148 mm in period have been fabricated in the Budker INP for the first time in the world. The maximum magnetic field, which can be generated on the central 13 poles, is 7.45 Tesla. To minimize magnetic gap the cold vacuum chamber with liquid helium temperature have been used. There is a 20 K copper liner inside the vacuum chamber to prevent it of heating by the electron beam. The inside cross section of the copper liner is 13 centre dot 109.9 mm. The irradiation power is 60 kW for the electron beam current of 0.5 A and 1.9 GeV energy. The wiggler tests with the beam on the BESSY-II storage ring had been performed on March 2003. The main features of the wiggler design and the tests results are presented in this paper

[en] A control system of the superconducting 63-pole wiggler fabricated at the Institute of Nuclear Physics in Novosibirsk (BINP) for Synchrotron Radiation Center in Canada (CLS) is described. Specific electronics and software which provide continuos monitoring of all the superconducting wiggler parameters as well as full control and monitoring of power suppliers and cryogenics machines, have been designed. The control system is VME-based. A client/server architecture of the software allowed us to integrate easily this system into the CLS distributed control system

[en] The system for monitoring charged particles beams in transformation channels is described. The system is based on application of the secondary emission monitors (SEM). The devices for treatment of the SEM signals, switched on a special interface modulus in the CAMAC crate, are considered. The basic characteristics of the information acquisition system are presented. The connection system and crate controller are described. The system is applied in the VEPP-3 and VEPP-4 channels

[en] Independent system for electron and positron beams remote viewing in the injectnon channel of the VEPP-3 booster has been described. The system comprises a set of monitors for measuring beam parameters, equipment for information read-out processing and output. The system independence is ensured by the use of microcomputers and a set of special apparatus (in CAMAC standard). The monitor operation is based on the recording of secondary-emission electrons, escaping from a thin aluminium foil and thus forming the beam image. The beam image using accelerating voltage is transmitted beyond the aperture and is amplified in microchannel plates. The system permits to conduct operative measurements of transverse phase ellipse parameters using the method calibrated lens-montor; to optimize the channel regime rapidly so as to match the beam emittance with the acceptance of the VEPP accumalating path

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[en] A superconducting 63-pole wiggler with the average period 34 mm designed and fabricated at the Institute of Nuclear Physics in Novosibirsk for Synchrotron Radiation Center (CLS) in Canada is described. The maximum field 2.2 Tesla in the median plane has been achieved. The liquid helium consumption less than 0.03 liters per hour in operating mode has been reached. In January 2005, the wiggler was installed in the storage ring in CLS and now experiments are already underway. The main parameters of the magnet and the cryogenic systems as well as test results are presented

[en] A contract for multipole superconducting wiggler design and fabrication between the University of Saskatchewan (Canada) and Budker Institute of Nuclear Physics (BINP) was signed in October 2003. The wiggler with the photons energy range from 4 to 40 keV, the maximum field 1.9 T and the period length as small as possible was required for the micro-XAFS beamline. In 2004 the 2 T 63-pole superconducting wiggler with the average period length 34 mm was fabricated at BINP. To eliminate the undulator type spectrum the periodicity of the wiggler was broken. A new approach to the cryostat design enabled the long time (up to 6 months) machine operation without liquid helium refilling (LHe consumption < 0.03 l/h). In January 2005 after successful tests the wiggler was installed on the Canadian Light Source (CLS) storage ring with the energy 2.9 GeV. The main parameters of the magnet and the cryogenic systems as well as magnet measurements data, cryogenic system test data and experimental results during machine operation on the CLS storage ring are presented

[en] The system of measurement and stabilization of the magnetic field in the superconducting 7 T wave length shifter (WLS), designed at Budker Institute of Nuclear Physics are described. The measurements are performed by nuclear magnetic resonance (NMR) magnetometer at two points of the WLS magnetic field. Stabilization of the field is provided by the current pumping system. The stabilization system is based on precise NMR measurement of magnetic field as a feedback signal for computer code which control currents inside the superconducting coils. The problem of the magnetic field measurements with NMR method consists in wide spread of field in the measured area (up to 50 Gs/mm), wide temperature range of WLS operating, small space for probe and influence of iron hysteresis. Special solid-state probes were designed to satisfy this requirements. The accuracy of magnetic field measurements at probe locations is not worse than 20 ppm. For the WLS field of 7 T the reproducibility of the magnetic field of 30 ppm has been achieved