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Turkish Accelerator and Radiation Laboratory at Ankara

Turkish Accelerator and Radiation Laboratory at Ankara. Suat ÖZKORUCUKLU İstanbul University. THE GOALS. The TARLA aims to obtain FEL between 3-250 µm using 15-40 MeV electron beam. There will be two different optical resonators with undulators with 2.5cm and 9.0cm periods.

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Turkish Accelerator and Radiation Laboratory at Ankara

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  1. Turkish Accelerator and Radiation Laboratory at Ankara Suat ÖZKORUCUKLU İstanbul University

  2. THE GOALS The TARLA aims to obtain FEL between 3-250 µm using 15-40 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 |IstanbulUniversity

  3. THE PLANS We are planning on IRFEL 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 TARLA is an official member of EU-FP7 Project named as CALIPSO for training of users in any 20 European Light Source Facilities Suat Özkorucuklu |IstanbulUniversity

  4. TARLA LAYOUT Suat Özkorucuklu |IstanbulUniversity

  5. ELECTRON BEAM PARAMETERS Suat Özkorucuklu |Istanbul University

  6. TARLA BEAM 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

  7. TARLA e-GUN 250keVThemionic DC gun is ready. Home made electronics and control software are used Suat Özkorucuklu |Istanbul University

  8. TARLA e-GUN Commissioning has been continuing for more than 6 months. Suat Özkorucuklu |Istanbul University

  9. TARLA e-GUN Commissioning has been continuing for more than 6 months. Suat Özkorucuklu |Istanbul University

  10. INJECTOR – BUNCHER CAVITIES Commissioning has been continuing for more than 6 months. SB 260MHZ FB 1.3GHZ They were ordered to Research Instruments and will be delivered by the end of 2013 Suat Özkorucuklu |Istanbul University

  11. ACCELERATING SECTION • 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. Suat Özkorucuklu |Istanbul University

  12. ACCELERATING MODULES 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) Suat Özkorucuklu |Istanbul University

  13. FREE ELECTRON LASER HALL • We plan to have to 2 different optical resonator in order to scan all wavelengths between 3-250 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. Suat Özkorucuklu |Istanbul University

  14. RF AMPLIFIERS • 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. Suat Özkorucuklu |Istanbul University

  15. He PLANT • Thesystemwillconsistof • Heliumrefrigerator (4 K box) • Distribution Box (2 K box, housingcoldcompressors) • Twocompressors • Warmvacuumpumpstation • Oilremover • Transfer lines, • vaporizeretc.. • Capacity • 210 W @1.8K • 16 mbar0.2mbar • Contractsigned in August 2012, • deliveryby May 2014 • commissioningAugust 2014 Suat Özkorucuklu |Istanbul University

  16. EXPECTED FEL PARAMETERS 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. Suat Özkorucuklu |Istanbul University

  17. EXPECTED FEL PARAMETERS • 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 Suat Özkorucuklu |Istanbul University

  18. EXPECTED FEL PARAMETERS Suat Özkorucuklu |Istanbul University

  19. PROPOSED FEL EXPERIMENTS • 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: 3-250 μm • Average FEL power: 1-100 W • Time structure: • 1-5 ps micro pulse duration CW/macro pulsed laser pulses with 13 MHz micro pulse repetition Suat Özkorucuklu |Istanbul University

  20. MILESTONES First ElectronBeam, April 13 BeamfromInjector, Q1 2014 BeamfromSRF1, Q1 15 BeamfromSRF1, Q3 15 Suat Özkorucuklu |Istanbul University

  21. iMAC 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 4th Meeting: March 8-9, 2012 IAT, Ankara University 2010 5th Meeting: April 22-23 2013 IAT, 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)

  22. SUMMARY • Commissioning of gun is continuing • Currently we are making some modifications on our buildingfor • user labs, cyrogenicsand radiation safety infrastructure. • The injector will to be ready by the end of 2014. 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 2014. 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... Suat Özkorucuklu |Istanbul University

  23. SUMMARY • 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 Suat Özkorucuklu |Istanbul University

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