Turkish Accelerator and Radiation Laboratory at Ankara Suat ÖZKORUCUKLU İstanbul University

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY THE GOALS The TARLA aims to obtain FEL between µm using MeV electron beam. There will be two different optical resonators with undulators with 2.5cm and 9.0cm periods. In order to have wide research area, the electron beam is requested to be continuous wave with high current as well as pulsed with low current. We plan to use high average current normal conducting injector which operates CW mode and superconducting accelerators which are fed by solid state power amplifiers. We propose to use electron beam itself for material and detector research in the future Suat Özkorucuklu |Istanbul University 2

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY THE PLANS We are planning on IR FEL Stations (5): Photon science and diagnostics Ultrafast photonics applications General IR spectroscopy Material characterization Bio-micro spectroscopy and biomedicine and also Bremsstrahlung line after the second accelerating module for nuclear structure and gamma radiation studies Suat Özkorucuklu |Istanbul University 3 TARLA is an official member of EU-FP7 Project named as CALIPSO for training of users in any 20 European Light Source Facilities

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY TARLA LAYOUT Suat Özkorucuklu |Istanbul University 4

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY ELECTRON BEAM PARAMETERS Suat Özkorucuklu |Istanbul University 5

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY TARLA BEAM 6 Micropulse repetition is controlled at gun with fast grid modulation system Macropulse time structure is manipulated with macropulsed installed on injector Suat Özkorucuklu |Istanbul University

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY TARLA e-GUN 7 250keV Themionic DC gun is ready. Home made electronics and control software are used Suat Özkorucuklu |Istanbul University

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY TARLA e-GUN 8 Suat Özkorucuklu |Istanbul University Commissioning has been continuing for more than 6 months.

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY TARLA e-GUN 9 Suat Özkorucuklu |Istanbul University Commissioning has been continuing for more than 6 months.

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY INJECTOR – BUNCHER CAVITIES 10 Suat Özkorucuklu |Istanbul University Commissioning has been continuing for more than 6 months. They were ordered to Research Instruments and will be delivered by the end of 2013 SB 260MHZFB 1.3GHZ Resonance frequency 260 MHz Theoretical Q5800 Tuning range1 KHz V acc 0.06 MV/m Leakage rate< 1E -9 mbar l/s ΔE25 kV Material Cu OFHC / Stainless Steel Resonance frequency 1300 MHz Theoretical Q Tuning range2.2 MHz V acc 0.1 MV/m Leakage rate< 1E -9 mbar l/s ΔE20 kV Material Cu OFHC / Stainless Steel

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY ACCELERATING SECTION 11 Suat Özkorucuklu |Istanbul University Main accelerating section will consist of 2 superconducting SRF modules Bunch compressor located between two modules 1 mA CW beam provided by injector will be accelerated up to 18 MeV in first linac; The bunches at maximum 18 MeV will be compressed down to 0.5ps (or decompressed) in bunch compressor section. (Due to capture process a dogleg style bunch compressor has been designed.); In the second state of this section beam will able to be accelerated up to 40 MeV.

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY ACCELERATING MODULES 12 Suat Özkorucuklu |Istanbul University Super conducting RF accelerating module is designed for continuous operation with accelerating gradient up to 15 MV/m. One compact module houses two TESLA cavities The cryostat design has been developed by ELBE team (HZDR) and is used under a license agreement. Research Instruments (Contract in 2012 Oct)

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY FREE ELECTRON LASER HALL 13 Suat Özkorucuklu |Istanbul University  We plan to have to 2 different optical resonator in order to scan all wavelengths between m.  U90 undulator with 90 mm and U25 undulator with 25 mm period length  The beam is injected to undulators with achromatic beamlines with 30 bending magnets and quadrupole triplets in between.

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY RF AMPLIFIERS 14 Suat Özkorucuklu |Istanbul University Each SC cavity will be fed by solid states transmitters with a power of 18 kW. They were manufactured by Sigmaphi (Bruker) and demonstrated at ELBE We plan to sign a contract in two months.

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY He PLANT 15 Suat Özkorucuklu |Istanbul University The system will consist of Helium refrigerator (4 K box) Distribution Box (2 K box, housing cold compressors) Two compressors Warm vacuum pump station Oil remover Transfer lines, vaporizer etc.. Capacity mbar 0.2mbar o Contract signed in August 2012, o delivery by May 2014 o commissioning August 2014

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY EXPECTED FEL PARAMETERS 16 Suat Özkorucuklu |Istanbul University Plots shows possible wavelength ranges and single pass gain for beam energy vs. undulator strengths. (constant bunch length, optimum out coupling factor, etc) In realty obtaining these limits for the wavelengths would not be possible, due to low strength or long bunch length.

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY EXPECTED FEL PARAMETERS 17 Suat Özkorucuklu |Istanbul University Plots shows gain (left) and intracavity power (right) behavior versus round trips between mirrors.. It is seen that gain for longer wavelengths (therefore saturated power) is too small.. The calculations was performed for optimum out coupling factor etc. bunch length and detuning has been optimized for different FEL wavelengths lengths

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY EXPECTED FEL PARAMETERS 18 Suat Özkorucuklu |Istanbul University

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY PROPOSED FEL EXPERIMENTS 19 Suat Özkorucuklu |Istanbul University Proposed FEL stations are: IR spectroscopy lab. SFG-PP lab. Bio-Micro Spectroscopy lab. Material research lab. Main FEL parameters are available for these labs wavelength range: μm Average FEL power: W Time structure: 1-5 ps micro pulse duration CW/macro pulsed laser pulses with 13 MHz micro pulse repetition

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY MILESTONES 20 Suat Özkorucuklu |Istanbul University First Electron Beam, April 13 Beam from Injector, Q Beam from SRF1, Q1 15 Beam from SRF1, Q3 15

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY Peter MICHEL (HZDR-ELBE, Germany) (Head) Hideaki OHGAKI (Kyoto University, Japan) Dieter TRINES (DESY, Germany) Ernst WEIHRETER (HZB-BESSY, Germany) Jean R. DELAYEN (JLab, USA) 1st Meeting: December 4-5, 2009 Ankara University 2nd Meeting: September 2-3, 2010 Bodrum, Mugla 3rd Meeting: May 12-13, 2011 IAT, Ankara University th Meeting: March 8-9, 2012 IAT, Ankara University 5th Meeting: April IAT, Ankara University iMAC

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY SUMMARY 22 Suat Özkorucuklu |Istanbul University  Commissioning of gun is continuing  Currently we are making some modifications on our building for  user labs, cyrogenics and radiation safety infrastructure.  The injector will to be ready by the end of Commissioning will take about 6 months (including all tests)  The helium plant will be ready by the mid of 2014  First cyromodule will be delivered by September We expect to get first beam from SRF1 by the mid of 2015, and beam from SRF2 is expected by the end of 2015  Additionally we plan to start TARLA-2 project by next year in order to purchase the undulators and resonators...

3RD TAC LIGHT SOURCES USERS’ MEETING (TAC-LSUM 2013) | OCTOBER 5-7 | 2013 | ANKARA UNIVERSITY SUMMARY 23 Suat Özkorucuklu |Istanbul University TARLA is the first step of TAC project and will be the first FEL user facility in Turkey and around our region. Its wavelength and power alternatives could allow extensive FEL opportunities to users. That’s why we need your input and comments as potential users and experts