Gusarova, M. Butenko, A.V. Gorchakov, A.A. Lalayan, M.V. Shparla, D.A. Sidorin, A.O. Surkov, D.V. Taletskiy, K.V. Trubnikov, G.V. JACoW Geneva, Switzerland 978-3-95450-191-5 10.18429/JACoW-SRF2017-MOPB034 English 125-127 MOPB034 cavity ion linac accelerating-gradient multipactoring Contribution to a conference proceedings 2018 2018-01 https://doi.org/10.18429/JACoW-SRF2017-MOPB034 http://jacow.org/srf2017/papers/mopb034.pdf The paper summorises the research results aimed on the choice of superconducting accelerating cavities for the second section of the SC linac Nuclotron-NICA injector project. This choice was based on comparative analysis of accelerating structures electrodynamic characteristics taking into account technological challenges of bulk niobium cavities production.