Welcome to I18 - The Microfocus Beamline

I18 uses a 27mm-period undulator to give a bright energy-tuneable X-ray microbeam with an accessible energy range from 2 to 20 keV. The beamline is optimized to perform micro-X-ray fluorescence (XRF) mapping studies, micro-X-ray absorption spectroscopy and micro-X-ray diffraction. Microfocus spectroscopy is highly important for the analysis of heterogeneous materials in all fields of science in microscopic detail.

Suitable for experiments requiring:

· Tender to hard-energy X-rays

· Beam size down to 2 µm x 2 µm.

· Time-resolved in situ measurements

· Monochromatic and tuneable X-ray source

· Fluorescence and diffraction techniques,

(can be combined during one experiment)

· A range of unique sample environments

We are able to perform a range of experimental techniques on the micrometre scale:

· X-ray Fluorescence Mapping (2D & 3D)

· X-ray Diffraction

· X-ray Absorption Spectroscopy

· X-ray Emission Spectroscopy

I18 has been utilised for a large range of scientific studies including:

· Geochemistry and space minerology

· Biochemistry and medical research

· Environmental and plant science

· Cultural heritage research

· Catalysis structure and mechanistic pathways

· Ultrafast pump-probe XAS

Also available are a range of sample environments for users experiments:

· Sample heating (25 ^oC – 700 ^oC)

· Helium enclosure

· Cryogenic cooling

· Laser interlock

I18 can accommodate a range of complex sample environments which the users can bring and install for their beamtime (Please discuss with beamline staff).

More information about the beamline has been published:

J. Frederick W. Mosselmans, Paul D. Quinn, Andrew J. Dent et al., Journal of Synchrotron Radiation. 2009, 16, 818-824 (link).

Diaz-Moreno S, Amboage M, Basham M, Boada R, Bricknell NE, Cibin G, Cobb TM, Filik J, Freeman A, Geraki K, Gianolio D. The Spectroscopy Village at Diamond Light Source. Journal of Synchrotron Radiation. 2018, 25,4, 998-1009. (link)