Vol. 9 (2016) Acta Physica Polonica B Proceedings Supplement No 2 TIME PROJECTION CHAMBER FOR MULTI-PURPOSE DETECTOR AT NICA * A. Averyanov, A. Bajajin, V.F. Chepurnov, V.V. Chepurnov G. Cheremukhina, S. Chernenko, O. Fateev, Yu. Kiriushin A. Korotkova, F. Levchanovskiy, J. Lukstins, S. Movchan A. Pilyar, S. Razin † , A. Ribakov, V. Samsonov, S. Vereschagin Yu. Zanevsky, S. Zaporozhets, V. Zruyev Joint Institute for Nuclear Research Joliot Curie 6, Dubna Moscow Region, Russia (Received July 8, 2016) The time-projection chamber (TPC) is the main tracking detector in the MPD at NICA. Information on charge particle tracks is registered by the multi-wire proportional chamber with cathode pad readout. The main parameters and some details of the TPC design and readout electronics are presented. DOI:10.5506/APhysPolBSupp.9.155 1. Introduction Within the framework of the JINR scientific program on study of hot and dense baryonic matter, a new accelerator complex — the Nuclotron-based Ion Collider Facility (NICA) [1, 2] is under realization. It will operate at a luminosity up to 10 27 cm −2 s −1 for Au 79+ ions. Two interaction points are foreseen at the NICA for two detectors which will operate simultaneously. One of these detectors, the Multi-Purpose Detector (MPD), is optimized for investigations of heavy-ion collisions [3, 4]. The set-up of the central barrel part of the MPD is shown in Fig. 1. MPD envisaged experimental program includes simultaneous measure- ments of observables that are presumably sensitive to high-density effects and phase transitions. The observables measured on the event-by-event basis are particle yields, their phase-space distributions, correlations, and fluctuations. * Presented at the NICA Days 2015 Conference associated with WPCF 2015: XI Work- shop on Particle Correlations and Femtoscopy, Warszawa, Poland, November 3–7, 2015. † Corresponding author: razin@jinr.ru (155)