The ExcaliburRX-3M X-Ray Photon Counting Area Detector for Coherent Diffraction Imaging at the I13 Beamline at Diamond Light Source

Williams, S.; Batey, Darren; Cipiccia, Silvia; Angelsen, C.; Crook, R.; Gimenez, E.N.; Horswell, I.; Marchal, J.; Nicholls, T.; Pedersen, U.; Taghavi, Seyed Farid; Tartoni, N.; Rau, Christoph; Thompson, J. A.; Willis, B.

doi:10.1109/nssmic.2017.8532988

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…This could be beneficial since the stabilization of high-heat-load double-crystal monochromators is one of the most critical challenges for their effective utilization in diffraction-limited storage rings 19 . In addition, having more than two energy thresholds 20 would allow for the edge subtraction to be performed in a single acquisition. Collecting the data in a single acquisition would be beneficial for the stability and quality of the final results.…”

Section: Discussionmentioning

confidence: 99%

Edge-subtraction X-ray ptychographic imaging with pink beam synchrotron radiation and a single photon-counting detector

Brun

Trapani

Batey

et al. 2020

Sci Rep

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We present here a new method of performing X-ray edge-subtraction ptychographic imaging by combining multiple harmonics from an undulator synchtrotron source and an energy discriminating photon counting detector. Conventionally, monochromatic far-field X-ray ptychography is used to perform edge subtraction through the use of multiple monochromatic energy scans to obtain spectral information for a variety of applications. Here, we use directly the undulator spectrum from a synchrotron source, selecting two separate harmonics post sample using the Pixirad-1/Pixie-III detector. The result is two monochromatic images, above and below an absorption edge of interest. The proposed method is applied to obtain Au L-edge subtraction imaging of a Au-Ni grid test sample. The Au L-edge subtraction is particularly relevant for the identification of gold nanoparticles for biomedical applications. Switching the energy scan mechanism from a mechanical monochromator to an electronic detector threshold allows for faster spectral data collection with improved stability.

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Section: Discussionmentioning

confidence: 99%

Edge-subtraction X-ray ptychographic imaging with pink beam synchrotron radiation and a single photon-counting detector

Brun

Trapani

Batey

et al. 2020

Sci Rep

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“…The data is recorded with the in-house developed EXCALIBUR detector [13,14], containing a 6x8 MediPix3 array with 100Hz recording speed in continuous mode and 1 kHz in burst mode. For fast recording an Eiger 500k detector is being commissioned (more details below).…”

Section: Recording Of Datamentioning

confidence: 99%

New imaging opportunities at the DIAMOND beamline I13L

Rau

Batey

Cipiccia

et al. 2019

X-Ray Nanoimaging: Instruments and Methods IV

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The Diamond Beamline I13L is dedicated to micro-and nano-imaging, with two independently operating branchlines. The imaging branch preforms imaging in real space, with In-line phase contrast imaging and grating interferometry at micrometre resolution and full-field transmission microscopy up to 50nm spatial resolution. Highest spatial resolution is achieved on the coherence branchline, where diffraction imaging methods such as Ptychography and Bragg-CDI are performed. The article provides an update about the experimental capabilities at the beamline with an emphasis on the rapidly evolving ptychography capabilities. The latter has evolved to an user-friendly method with non-expert users able to explore their science without any specific a-priory knowledge.

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