Abstract
The Super Charm Tau Factory (SCTF) is a newly proposed electron-positron collider with an energy range of 2–7 GeV in the center of the mass system and luminosity of about 1035 cm-2s-1, instrumented with Super Charm-Tau Detector. The innermost part of the SCTD is the inner tracker (IT). The main tasks of IT are the extension of the lever arm of the drift chamber, detection of soft hadrons, and reconstruction of the secondary particles that decay in the IT. The main candidates for IT are silicon strip detectors, cylindrical MPGD detectors, and a time projection chamber (TPC). This paper discusses the results of simulation studies of the TPC detector in detail and the plans for the inner tracker development.