At Budker INP SB RAS, a prototype of high-power industrial electron accelerator for, the energy of 5 MeV, named ILU-12, has been successfully commissioned. The accelerator operates at 176 MHz. The paper presents the accelerator concept together with simulation results for the accelerating structure, beam injection and dynamics. The obtained beam pulsed power of 1,5 MW at the structure electron efficiency of 67% is close to the simulation value. Improvements of beam transportation and energy spectrum due to the injection regime optimization were experimentally proven. The results obtained are discussed.

At Budker INP SB RAS, a prototype of high-power industrial electron accelerator for the energy of 5 MeV, named ILU-12, has been successfully commissioned. The accelerator operates at 176 MHz. The paper presents the accelerator concept together with simulation results for the accelerating structure, beam injection and dynamics. The obtained beam pulsed power of 1,5 MW at the structure electron efficiency of 67% is close to the simulation value. Improvements of beam transportation and energy spectrum due to the injection regime optimization were experimentally proven. The results obtained are discussed. PACS: 29.17+w

New industrial accelerator prototype with electron en- ergy up to 5 MeV, average beam power of 300 kW, and duty factor of 14% is under construction at Budker INP. At present, the design work is completed, the accelerating structure is under production at INP workshop. The paper presents a general description of the accelerator, its block diagram, and experimental results obtained at recent tests of the accelerating structure and injection unit.

ИМПУЛЬСНЫЕ ЛИНЕЙНЫЕ УСКОРИТЕЛИ ЭЛЕКТРОНОВ СЕРИИ ИЛУ ПРОИЗВОДСТВА ИНСТИТУТА ЯДЕРНОЙ ФИЗИКИ ИМ

Design work has been completed for the accelerating structure of high-power electron accelerator with 5 MeV, 300 kW, 176 MHz parameters. The structure is being produced in BINP workshop. The paper presents the design of of experimental the accelerating structure which consists of a chain of coaxial cavities, and block diagram workbench. Structure of the main accelerator blocks and their degree of fabrication are viewed.

New industrial accelerator prototype with electron energy up to 5 MeV, average beam power of 300 kW, and duty factor of 14% is under construction at Budker INP. At present, the design work is completed, the accelerating structure is under production at INP workshop. The paper presents a general description of the accelerator, its block diagram, and experimental results obtained at recent tests of the accelerating structure and injection unit.

The paper describes a compact electron beam source ELVI-200/2 with average electron energy of 200 keV. The source operates with pulse power up to 2 MW under average power not higher than 2 kW, pulse duration 0.2÷2 mks, and repetition rate up to 5 kHz. The electron beam is extracted through aluminium – beryllium alloy foil. The pulse duration and repetition rate can be changed from control desk. High-voltage generator for the source with output voltage up to 220 kV is realized using the voltage-doubling circuit which consists of 30 sections. The insulation type – gas, SF 6 under pressure of 8 atm. The cooling of the foil supporting tubes is provided by a water – alcohol mixture from an independent source.

During last years the demand for pasteurization and desinsection of various food products (meat, chicken, sea products, vegetables, fruits, etc.) had increased. The treatment of these products in industrial scale requires the usage of powerful electron accelerators with energy 5-10 MeV and beam power at least 50 kW or more. The report describes the ILU accelerators with energy range up to 10 MeV and beam power up to 150 kW. The different irradiation schemes in electron beam and X-ray modes for various products are described. The design of the X-ray converter and 90degrees beam bending system are also given. (C) 2002 Elsevier Science Ltd. All rights reserved.

The ILU-type industrial electron accelerators are developed in BINP sins 1967. Their energy range is 0.7–4.0 MeV at beam power of 20–50 kW. The comparison of the irradiation results after bilateral and four-sided irradiation of cables and tubes is given. It is shown that the required electron energy and beam power in the case of four-sided irradiation are sufficiently lower than in the case of bilateral irradiation, resulting in an increase of productive rate of the process and improvement of treatment quality. The installations for four-sided irradiation of cables and tubes are based on the industrial electron accelerators type ILU.

The brief descriptions of the various RF powerful electron beam machines type ILU designed in the BINP are given as well as the main areas of their application. These machines are compact in comparison with DC machines. The accelerators are working within the energy range of 0.5-4.0 MeV and beam power up to 50 kW. The different irradiation technologies for treatment of cables, wires, tubes, film materials, cellulose sheets are described.

The powerful high-frequency eleclron accelerators type ILU are designed in the Novosibirsk Institute of Nuclear Physics for various applications in the industrial technological lines. The energy range covered by the different models of those accelerators is 0.4-5.0 MeV, and the electron beam power range is 20-50 kW. The design of the accelerators itself and different beam extraction devices for various applications is described. The ILU application examples in different technological lines for the polymer tubes, cables and wires treatment, single-use medical goods sterilization, production of the thick-layer hybrid integrated circuits etc. are also described. The ILU accelerators and their technological lines are fully automated.