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P.36. Yuelin Li (Argonne Naitonal Laboratory, USA) Application of laser techniques for accelerator-based radiation sources

The marriage of laser and accelerator technology is promising in broadening the scope in scientific research and technology development. In this paper, we discuss applications of laser techniques in accelerators. The topics include: 1) signal distortion of single shot electro-optical sampling technique for particle beam profile measurement; 2) the tech- niques for 3-D laser pulse shaping to generate the much desired ellipsoidal beam in photoinjector; and 3) a Thomson-scattering scheme for generating short-pulse, high-flux Gamma ray radiation and its potential for generating ultrashort position beams. * Work supported by U.S. Department of Energy, Office of Science, Office of Basic Energy Sci- ences under Contract No. W-31-109-ENG-38.

Dr. Yuelin Li: ylli@aps.anl.gov

P.37. V. N. Zamriy (Joint Institute for Nuclear Research, Dubna, Russia) Diagnostic Front-End Assemblies for IREN Facility Linac Control

The approaches to modular instrumentation systems under discussion, provide various allocation levels of signal processing, as well as the supervisory levels included into the control structure for the designed facility. The system nodes, which provide handling of signal groups, as well as desirable on-line data processing, have been offered to equip the pulsed facility. This work considers some features of the distributed assemblies intended for the timed data taking and control of the electron linear accelerator. The front-end as- semblies for diagnostics of duty cycles and state transitions for protection control of IREN facility linac, are developed. Besides, the realized front-end signal-processing units are presented.

Dr. Victor Nikolaevich Zamriy: zamrij@nf.jinr.ru

P.38. Boriskin V.N., Mitrochenko V.V., Perezhogin S.A., Popenko V.A., Savchenko A.N., Shevchenko V.A.,Tatanov V.I. (NSC KIPT, Kharkov, Ukraine)

MONITORING POSITION OF THE ELECTRON BEAM IN THE AIR.

A possibility of the operative control position of the electron beam with energy from 20 to 90 MeV, pulse currents up to 1A and operate frequency 50 - 300 Hz at the exit of two- structure electron linac has been investigated. The irradiated samples are situated in ambi- ent air of the linac bunker. Special secondary emission monitors are developed for the op- erative control of the beam position on the target. The monitor signals are used by linac control system.

Dr. Victor Nikolaevich Boriskin: boriskin@kipt.kharkov.ua

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