https://doi.org/10.1051/epjap:2008044
Back-illuminated CCD for coherent soft X-ray imaging
1
SP2M, CEA Grenoble, 17 avenue des Martyrs, 38054 Grenoble Cedex, France
2
Magnetic Spectroscopy Group, Daresbury Laboratory, Warrington WA4 4AD, UK
3
Diamond Light Source Ltd, Chilton, Didcot OX11 0DE, UK
4
SIMaP, INPG-UJF, UMR CNRS 5266, BP 75, 38402 Saint Martin d'Hères, France
Corresponding author: frederic.livet@ltpcm.inpg.fr
Received:
18
July
2007
Accepted:
31
January
2008
Published online:
28
March
2008
Direct-illumination CCDs find increasing use in coherent X-ray imaging due to their good spatial resolution and signal-to-noise ratio. These CCDs offer a high quantum efficiency for soft X-rays near the 3d transition metal L edges. We compare front- and back-illuminated CCDs and describe a method to obtain images with a large dynamic range (five orders of magnitude) and high spatial resolution. Back-illuminated CCDs are resistant to radiation damage at the soft X-ray energies and provide a true 13.5 μm pixel resolution. High quality diffraction images are obtained in magnetic studies from metallic multilayer structures in reflection geometry.
PACS: 07.85.Fv – X- and gamma-ray sources, mirrors, gratings, and detectors / 07.85.Qe – Synchrotron radiation instrumentation / 95.55.Aq – Charge-coupled devices, image detectors, and IR detector arrays / 42.25.Kb – Coherence
© EDP Sciences, 2008
