JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Domarov, E.V. AU - Chakin, I. AU - Cherepkov, V.G. AU - Fadeev, S. AU - Golkovsky, M. AU - Golubenko, Yu.I. AU - Korchagin, A.I. AU - Kuksanov, N.K. AU - Lavrukhin, A. AU - Nemytov, P.I. AU - Salimov, R.A. AU - Semenov, A.V. ED - Kuzin, Maksim V. ED - Schaa, Volker RW TI - Upgrated the Extraction Device of Focused Electron Beam Into the Atmosphere J2 - Proc. of RuPAC2021, Alushta, Crimea, 27 September-01 October 2021 CY - Alushta, Crimea T2 - Russian Particle Accelerator Conference T3 - 27 LA - english AB - For over 30 years, an extraction device has been successfully working in BINP at the ELV-6 accelerator to extract a focused beam of electrons into the atmosphere. The accelerating tube with permanent magnetic lenses was used in this installation. The design of these accelerator tubes with magnetic lenses is rather complicated. Recently, simpler design and high reliability accelerating tubes with big aperture is operating in ELV accelerators. For this reason, the problem number one at present is to develop the extraction device, capable of reliably working with serial accelerator tubes, of the ELV accelerator with power up to100 kW. The lens L1 is located directly at the lower end of the accelerating tube. Passing the lens L1, the beam is focused near the diaphragm D6 and increases to a diameter of 10 mm in the diaphragm D5. For passing the beam along the axis of the diaphragms, there are corrections coils C1 C2 C3. The diameter of diaphragm hole D1 is the most critical, because it determines the flow of gas that should be pumped out in the following steps of the vacuum system. Measurements of the parameters of a high-power electron beam were carried out up to a power of 100 kW. As a result of the made experiments the minimum diameter of the beam at the exit from the extractions device has been 2 mm at the energy of 1,4 MeV and the beam current of 60 mA. PB - JACoW Publishing CP - Geneva, Switzerland SP - 114 EP - 116 KW - electron KW - focusing KW - extraction KW - cathode KW - permanent-magnet DA - 2021/10 PY - 2021 SN - 2673-5539 SN - 978-3-95450-240-0 DO - doi:10.18429/JACoW-RuPAC2021-FRB03 UR - https://jacow.org/rupac2021/papers/frb03.pdf ER -