The setup of SLEGS. A set of two collimators of 5 mm (C5) and 2 mm (T2) aperture was used for the 27Al(γ, n)26Al in experiment. (IMAGE)

Nuclear Science and Techniques

The setup of SLEGS. A set of two collimators of 5 mm (C5) and 2 mm (T2) aperture was used for the 27Al(γ, n)26Al in experiment.

Caption

The SLEGS beamline at the Shanghai Synchrotron Radiation Facility (SSRF) generates quasi-monochromatic gamma rays with scattering energies ranging from 0.66 to 21.7 MeV by utilizing inverse Compton scattering between photons from a 10,640 nm, 100 W CO₂ laser and 3.5 GeV electrons in the storage ring. Operated in top-up mode with a beam current of 160–210 mA and an energy of 3.5 GeV, the SSRF storage ring supports this process. The gamma beam energy can be tuned in the slant-scattering mode with a minimum step of 10 keV, and the gamma rays are then collimated using the C5T2 double collimator.

Credit

Chun-Wang Ma

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