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TY - CONF AU - Starostenko, D.A. ED - Kuzin, Maxim TI - Linear Induction Accelerator LIA-2 Upgrade J2 - Proc. of RuPAC2021, Alushta, Russia, 27 September-01 October 2021 CY - Alushta, Russia T2 - Russian Particle Accelerator Conference T3 - 27 LA - english AB - X-ray complexes based on a linear induction accelerator are designed to study of high density objects. It requires of high-current electron beam to obtain a small spot and bright x-ray source using a conversion target. The electrons source in such installations is injectors capable generate pulses with a duration from tens of nanoseconds to several microseconds and a current of several kiloamperes. The transportation and focusing such beams into diameter about 1 mm is difficult due to of the space charge effect. In similar induction accelerators (DARHT, AIRIX, FXR, etc.), auto-emission cathodes are used to obtain high-current electron beams. The use of a thermionic cathode, in compared to auto-emission cathode, provides stable generation of several pulses with a time interval of several microseconds, but makes high requirements on the injector vacuum system: not less than 10⁻⁷ Torr. PB - JACoW Publishing CP - Geneva, Switzerland SP - 17 EP - 19 KW - cathode KW - simulation KW - focusing KW - space-charge KW - induction DA - 2021/09 PY - 2021 SN - 2673-5539 SN - 978-3-95450-240-0 DO - doi:10.18429/JACoW-RuPAC2021-MOY05 UR - https://jacow.org/rupac2021/papers/moy05.pdf ER -