[en] Full text: ¹⁸³Hg → ¹⁸³Au decay was studied using the TATRA system at ISOLDE facility. Conversion electrons were detected with the LN2 cooled windowless Si(Li) detector. The tape system was operated at 8.10^-8 mbar, therefore no deposition of mist on the surface of cold detector was observed during the run. The FWHM of 1.2 keV for conversion electrons above 150 keV was achieved, which is almost comparable with previous measurement, which employed magnetic spectrometer. Simultaneously, the gamma rays were detected with array of coaxial and novel Broad Energy germanium (BEGe) detectors. Very good energy resolution of BEGe detector was used to construct the level scheme of ¹⁸³Au, which has large density of excited states at low energy. In the talk, fundaments of the shape coexistence in odd-Au isotopes, technical details of system for detection of conversion electrons and level scheme of ¹⁸³Au will be presented. Technique of level scheme construction developed in the present study has large potential for studies of isotopes with high level density and can be with success applied to neutron-rich isotopes. (author)