Introduction to I12 – JEEP

Beamline I12-JEEP (Joint Engineering, Environmental, and Processing) is a high energy X-ray beamline for imaging, diffraction and scattering, which operates at energies of 53-150 keV.

• high-energy X-rays
• time-resolved in situ measurements
• monochromatic or polychromatic (“white beam”) X-rays
• imaging and diffraction techniques, including their combination during one experiment
• beam size up to 100 mm × 30 mm, both monochromatic and polychromatic
• complex sample environments provided by users (users are welcome to bring their own sample environment for diffraction and imaging experiments)

• Static and time-resolved radiography and tomography
• Static and time-resolved powder diffraction using monochromatic radiation
• Time-resolved powder diffraction using energy-dispersive radiation
• Diffuse scattering on crystalline (single-crystal diffuse scattering) or amorphous materials (pair-distribution function analysis "PDF”)
• High energy X-ray small angle scattering

General: All techniques use high-energy X-rays able to penetrate large samples or sample environments. Therefore sample preparation is simple and processes can often be studied under real-world conditions. For very high resolution in real space (< 2 µm)  or in reciprocal space, lower X-ray energy techniques on other beamlines are more suitable.

• Large Field of View Camera for tomography of large samples
• Fast X-ray camera for monochromatic and white beam radiography and tomography 
• INSTRON 100 kN uniaxial mechanical test rig for in situ diffraction and imaging experiments and for ex situ sample preparation before measurements