A new high power (up to 100 kW) industrial linear electron accelerator ILU-14 for energy of 7.5–10 MeV is under construction at Budker INP. The accelerator operates at 176 MHz with total efficiency of 26 %, its modular structure allows the electron energy and beam current to be varied within certain limits by changing the modular arrangement. The 5 MeV prototype of the accelerator was created and successfully tested in 2009. The designed average beam current of 600 mA with pulsed power of 2.5 MW and accelerating structure electron efficiency of 68 % were obtained during experiments. Applying an additional RF voltage to the electron gun cathode-grid gap allowed a beam current passing of 96 % with minor beam energy spread. The paper presents results of the numerical and experimental study of the accelerator systems together with the latest tests on the accelerator prototype.
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.
RF gun for ILU-12 accelerator is described in the paper. Mechanism of beam transportation and energy spectrum improvements by applying an additional RF voltage of the operating frequency to the cathode-grid gap is considered in detail. Simulated energy spectrum and density profile of electron beam at the accelerator output are presented.
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
Design of the power input is described in the paper. The power input is a low-impedance coaxial line with the wave resistance of about 30 Ohm. One of the line ends is shorted, the other turns into the coupling loop, which inductance is compensated by the stray capacitance. The vacuum section of the power input is separated from the atmosphere by the cylindrical insulator made of 22XC ceramics. The coaxial part of the power input is divided into the 176 MHz quarter-wave-length insulator and quarter-wave-length transformer by the point of the 50 Ohm RF power feeder connection. Power input testing technique is described in the paper together with the results obtained when operating at the high power level.
At Budker INP SB RAS, a single module for a new 100 kW industrial accelerator with electron energy of 7.5‐ 10 MeV has been successfully tested in pulsed operating regime. The accelerator operates at 176 MHz, expected wall plug to electron energy efficiency is 25‐30%. The paper presents the accelerator concept together with simulation results for the accelerating structure, beam injection and dynamics. The obtained structure electron efficiency of 67% and average electron beam current are close to the expected values. Improvements of beam transportation and energy spectrum due to the injection regime optimization were experimentally proven. The results obtained are discussed.
The report describes electron beam electromagnetic forming system, which is destined for irradiation of cylindrical long goods, specifically for PE tubes 160mm diameter. System consists of electromagnet, power supply units, beam distributions control units, etc. for use at an electron accelerator at 5MeV and 50kW. The particular geometry of the magnet poles and their mutual arrangement are creating an irradiation field that allows the electrons to irradiate the surface of the product close to 90°.
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.
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 report describes ILU type industrial electron accelerators. It describes their main parameters, design, principle of action, electron beam extraction devices, wide set of auxiliary equipment for various technological processes and ways of their usage.
The report describes the industrial electron accelerator ILU-10 for electron energy up to 5 MeV and beam power up to 50 kW specially designed for use in industrial applications. The operation regime is a pulsed regime, the maximum pulse repetition rate is 50 (60) Hz, a pulse duration is 0.4-0.5 ms.
The paper presents a project of high power linear accelerator for industrial applications. The accelerator has a modular structure and consists of the chain of accelerating cavities, connected by the axis-located coupling cavities with coupling slots in the common walls. Main parameters of the accelerator are: operating frequency of 176 MHz, electron energy of up to 5 MeV, average beam power of 300 kW. The required RF pulse power can be supplied by TH628 diacrode.
The paper presents a project of high power linear accelerator for industrial applications. The accelerator has a modular structure and consists of the chain of accelerating cavities, connected by the axis-located coupling cavities with coupling slots in the common walls. Main parameters of the accelerator are: operating frequency of 176 MHz, electron energy of up to 5 MeV, average beam power of 300 kW. The required RF pulse power can be supplied by TH628 diacrode.
The report describes the industrial electron accelerator ILU-10 for electron energy up to 5 MeV and beam power up to 50 kW specially designed for use in industrial applications. The operation regime is a pulsed regime, the maximum pulse repetition rate is 50 (60) Hz, a pulse duration is 0.4-0.5 ms.
The report describes ILU type industrial electron accelerators. It describes their main parameters, design, principle of action, electron beam extraction devices, wide set of auxiliary equipment for various technological processes and ways of their usage.