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Prof. Dr. İsmail BOZTOSUN

TARLA-Board Member

Akdeniz University-Antalya

Turkish Accelerator and Radiation Laboratory

2026

• Located at the outskirts of Ankara

about 15 km south of the city center

• Founded as a part of Ankara University,

but granted independent status as

a National Laboratory as of 2021

• Main goal is to construct an

superconducting electron linac to use for nuclear and radiation physics as well as to generate a Free Electron Laser(FEL)

• TARLA is intended as a user facility welcoming researchers from all over the world
• LINAC for FEL at 40 MeV is set to be completed in 6 months
• First beam time applications for nuclear & radiation physics are started at 20 MeV.

Turkish Accelerator & Radiation Laboratory (TARLA)

TARLA-FEL Ecosystem and Research Capability

Infrastructure Utilization

Collaborations, Joint Projects

Collaborations, Joint Projects

Infrastructure Utilization

Technology Transfer

Historical Timeline

HTE & TARLA buildings pysically constructed (THM-YUUP project, Coordinated by Ankara University)

Infrastructure Installations (Water Cooling System, Uninterruptable Power Supplies, Helium Cryogenic System, etc.)

Delivery of Superconducting Modules

Recognition of TARLA as a National Research Center.

Commissioning of Water Cooling system, Obtaining Radiation Infrastructure Licence (TUV)

First RF conditioning in Normal conducting cavities

2010

2012-2017

2020

end of 2017

July 2023

Commissioning of Helium Cryogenic System.

First RF conditioning in superconducting cavities

October 2023

First acceleration in Normal conducting cavities.

First acceleration in superconducting cavities,

March 2024

Commencement of TARLA Phase I.

May 2024

August 2023

December 2023

April 2024

Commissioning of TXPES optical beamline at SESAME (Jordan),

July 2025

International Collaborations

TARLA INTERNATIONAL MACHINE ADVISORY COMMITTEE (IMAC)

Current Status

Accelerator

H. Ðapo, Nuclear Physics @ TARLA

8

TARLA Electron Linear Accelerator

TARLA Linac

E_beam = 0-40 MeV

Max I_e = 1.5 mA

Micropulse duration = 0.5-6 ps

Micropulse repetition = 26 MHz/2ⁿ

E_{bremssrrahlung} = 0-30 MeV

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TARLA Electron Linear Accelerator(Zoom-in)

Detector Station/NRF target position

Collimator

Steering magnet

Electron Beam Dump

Conversion (Bremsstrahlung) Targets

Conversion (Bremsstrahlung) Targets

Four targets:

- 1 μm of Au

- 1 μm of W

- 6 μm of Cu

- 20 μm of Al(primary)

- 40 μm of Al(very high energy)?

Photonuclear Reactions

Basic research:

- Nuclear Resonance Florescence (γ,γ’)

- Photo-neutron reactions (γ,n)

- Other separation reactions (Astrophysics) (γ,p); (γ,α)

- Photofission

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Applications:

- Gamma Imaging

- Material science

- Medical Radio isotopes

- Detector research

Why NRF? (Potential discoveries/contributions)

E1 Response

Neutron skin

Equation of state

Neutron star

Nucleosynthesis

Research Infrastructure

Gamma Spectroscopy

Basic Research:

• Nuclear Resonance Fluorescence (γ,γ′)
• Photo-neutron reactions (γ,n)
• Other disintegration reactions (astrophysics) (γ,p); (γ,α)
• Photofission

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Example of the formation of new nuclei in the universe:

• Pygmy resonances and radiative neutron captures for stellar nucleosynthesis, N. Tsoneva, S. Goriely, H. Lenske, and R. Schwengner Phys. Rev. C 91, 044318

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State-of-the-art detector system:

• 8 high-purity germanium detectors (2 of them more sensitive than any other detector in Türkiye)
• 16 LaBr₃(Ce) detectors (planned purchase; the largest detectors of their kind in Türkiye)
• Digital 20-channel data acquisition system

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https://en.tarla-fel.org/research/research-infrastructure/ultrafast-spectroscopy/

For details visit

Infrastructure Capabilities

• Ultrafast high-intensity laser system

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Existing Techniques

• Ultrafast absorption spectroscopy
• Ultrafast terahertz spectroscopy
• Ultrafast magnetization dynamics

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Infrastructure and existing techniques

Ultrafast Spectroscopy Laboratory

https://en.tarla-fel.org/research/research-infrastructure/ultrafast-spectroscopy/

For details visit

• Steady-state absorption spectroscopy
• FTIR (Fourier Transform Infrared)
• Nano-FTIR (s-SNOM)
• AFM (Atomic Force Microscope)

Research Infrastructure

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Materials Science Laboratory

The TARLA Biotechnology Laboratory and the METU–TARLA Joint Research Laboratory develop scientific solutions at the physics–chemistry–biology interface. They use radiation-based techniques to elucidate the structures and dynamics of biologically important proteins and protein complexes in order to understand the mechanisms of biological processes.

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Research in the laboratory includes:

• Molecular biology
• Production and purification of recombinant or native proteins
• Protein characterization
• X-ray crystallography
• Sample preparation for electron microscopy or ultrafast time-resolved laser absorption spectroscopy
• Protein structure modelling
• Biochemical measurements (e.g. enzyme kinetics)
• Cross-linking mass spectrometry (XL-MS)
• Small-angle X-ray scattering (SAXS)
• Complementary techniques such as circular dichroism (CD) spectroscopy

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Fields of Activity

Biotechnology Laboratory

Chemistry

Biology

Physics

Summary

- TARLA linac is shaping up nicely, He-plant has been commissioned, the SRF’s are at 2 K and working stable for 20 MeV.

- LINAC parts for 40 MeV FEL are expected to be completed in 6 moths,

- the first experiments are to use photon beam (bremsstrahlung) for NRF;

- allows access to intrinsic level properties (width, spin, parity)

- from which observables (cross section, angular distribution) can be obtained

- and discoveries on; E1 response, neutron skin, nuclear equation of state, nucleosynthesis, and neutron stars can be made

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Turkish Accelerator and Radiation Laboratory

info@tarla-fel.org

0 312 484 43 84

Bahçelievler mh. 306 sk. No: 11/N

06830 Gölbaşı / Ankara, Türkiye

https://tarla-fel.org/