Author: Matsievskiy, S.V.
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TUPOW022 Hybrid Electron Linac With Standing and Travelling Wave Accelerating Sections 1791
  • S.V. Matsievskiy, A.V. Bulanov, V.I. Kaminskiy, E.A. Savin, N.P. Sobenin
    MEPhI, Moscow, Russia
  • R.Yu. Alekhanov
    NRNU, Moscow, Russia
  Hybrid electron linacs with standing and travelling wave accelerating sections are not well described in literature. Limited number of studies have shown that application of these systems makes it possible to develop a compact linac with high efficiency and simpler power system. Typically, these systems use well-studied bi-periodical accelerating structure (BAS) cells for a standing wave section and disc-loaded waveguides (DLW) for a traveling wave section. This paper describes the development of such system using DLW cells with magnetic coupling (DLW-M). Here BAS appears as an absorbing load connected to the DLW-M accelerating structure by rectangular waveguide allowing to have theoretical zero reflection at RF input. Such system also provides possibility of plain beam output energy adjustment. Studies of the structure were carried out using equivalent circuits methods and numerical 3D-modeling. Beam dynamics was calculated.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPOW022  
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TUPOW024 Compact Standing Wave Electron Linac with the Hybrid Accelerating and Power Generation Cell 1797
SUPSS015   use link to see paper's listing under its alternate paper code  
  • E.A. Savin, S.V. Matsievskiy, N.P. Sobenin, I.D. Sokolov
    MEPhI, Moscow, Russia
  • A.A. Zavadtsev
    Nano, Moscow, Russia
  Compact electron linear accelerators for small energies are now found their place in the industrial market. Such accelerators are used for cancer treatment, cargo inspection, when one needs higher dose that X-ray source can produce, food and medicaments irradiation etc. Acceleration structures themselves are already developed very well, so the most important issue now ' is to make the whole installation with power supply, RF tracts, cooling system ' as smaller as possible to provide the structure mobility. In this article we present the development how to combine a power supply (usually it is a klystron, IOT, magnetron or solid state amplifier) with the accelerating cell itself, that can decrease installation size at least twice. No RF tracts needed, no reflected power will occur, so no circulator needed. Different power input combinations have been studied, but the smallest and the most efficient one has been manufactured for cold tests at S-band frequency range. In this structure it is very easy to vary accelerating voltage simply changing the generator beam current or the generator beam accelerating voltage.

DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPOW024  
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