Solaris synchrotron performance and operational status

Solaris is a third generation light source operating since 2015 in Krakow, Poland. Between 2015 and 2018 the synchrotron as well as two beamlines were commissioned. During the commissioning phases the good performance of Solaris storage ring was reached. The beam optics was brought close to the design one. Since October 2018 the Solaris storage ring is in the user operation mode. Moreover, two other beamlines (PHELIX and XMCD) with elliptically polarized undulators used as source have been installed, currently under commissioning. In 2019 the total beam availability of 91.9% was reached with the average circulating current of 280 mA and the total lifetime of 25 h. Over the last year few improvements of the storage ring were done in order to optimize the storage ring performance. The Landau cavities were tuned to improve the Touschek lifetime and to suppress the instabilities. Two diagnostic beamlines were set up and commissioned, allowing for the beam size and the emittance measurements. The storage ring optics was fine-tuned to increase the dynamic aperture.