• B. Ketenoğlu, A. Aksoy, Ö. Karsli, M. Tural, O. Yavas
  Ankara University, Faculty of Engineering, Tandogan, Ankara
• H. Aksakal
  N.U, Nigde
• P. Arikan, E. Kasap
  Gazi University, Faculty of Arts and Sciences, Teknikokullar, Ankara
• B. Bilen
  Ankara University, Faculty of Sciences, Tandogan/Ankara
• H. Duran Yildiz
  Dumlupinar University, Faculty of Science and Arts, Kutahya
• S.O. Ozkorucuklu
  SDU, Isparta
• I. Tapan
  UU, Bursa

The TAC (Turkish Accelerator Center) IR FEL Oscillator facility, which has been supported by Turkish State Planning Organization (SPO) since 2006, will be based on a 15-40 MeV electron linac accompanying two different undulators with 2.5 cm and 9 cm periods in order to obtain IR FEL ranging between 2-250 microns. The electron linac will consist of two sequenced modules, each housing two 9-cell superconducting TESLA cavities for cw operation. It is planned that the TAC IR FEL facility will be completed in 2012 at Golbasi campus of Ankara University. This facility will give an opportunity to the scientists and industry to use FEL in research and development in Turkey and our region. In this study, the results of optimization studies and present plans about construction process of the facility are presented.