ILU-14 industrial electron linear accelerator with a modular structure

• Published in: Instruments and experimental techniques (New York) Vol. 54; no. 3; pp. 295 - 311
• Main Authors: Bryazgin, A. A., Bezuglov, V. I., Kokin, E. N., Korobeinikov, M. V., Kuznetsov, G. I., Makarov, I. G., Ostreiko, G. N., Panfilov, A. D., Radchenko, V. M., Serdobintsev, G. V., Sidorov, A. V., Tarnetsky, V. V., Tiunov, M. A., Faktorovich, B. L., Chernov, K. N., Cheskidov, V. G.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01.05.2011
• Subjects: Electrical Engineering; Measurement Science and Instrumentation; Nuclear Experimental Technique; Physical Chemistry; Physics; Physics and Astronomy; Grid Unit; Beam Pulse Current; Shunt Impedance; Accelerate Structure; Coupling Factor
• ISSN: 0020-4412; 1608-3180
• DOI: 10.1134/S0020441211030110

A new high-power (up to 100 kW) industrial electron linear accelerator ILU-14 for energies of 7.5–10.0 MeV has been developed by the Budker Institute of Nuclear Physics. The operating frequency of the accelerator is 176 MHz, and the total efficiency is 26%. Owing to the modular structure of the accelerator, the electron energy and the beam power can be varied within certain limits by changing the modular arrangement. A 5-MeV prototype of this accelerator has been produced and successfully tested. Its design parameters verified in the experiments are as follows: the beam current averaged over the RF period is 600 mA, the beam pulse power is 2.5 MW, and the electron efficiency of the accelerating structure is 68%. By applying an additional RF voltage to the electron gun cathode-grid gap, a 96% transmittance of the beam current has been attained at a minor beam energy spread. The prototype of the ILU-14 accelerator can be used as an accelerator with a beam power of 50 kW.