<i>In situ</i>X-ray beam imaging using an off-axis magnifying coded aperture camera system

Kachatkou, Anton; Kyele, Nicholas R.; Scott, Peter; Silfhout, Roelof van

doi:10.1107/s0909049513011060

Cited by 8 publications

(4 citation statements)

References 21 publications

(21 reference statements)

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“…[103] Due to these characteristics, X-ray is widely used in security check, military, scientific research, medicine and other fields. [104][105][106][107] Traditional X-ray detection materials are not sensitive enough for lowdose detection and the imaging quality is not high enough, which seriously limits the development of high-quality X-ray imaging.…”

Section: Perovskite Materials For X-ray Image Detectionmentioning

confidence: 99%

Advances in Photoelectric Detection Units for Imaging Based on Perovskite Materials

Wang

2022

Laser & Photonics Reviews

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As an excellent representative of a new generation of semiconductor materials, perovskite materials are sweeping the whole photoelectric field like a storm (such as photovoltaic, electroluminescence, photoelectric detection and imaging, memristor, thermoelectricity, and other fields). In the field of photoelectric detection and imaging, perovskite materials show unique and excellent application potential of photoelectric detection and imaging. This paper overviews the recent advances of photoelectric detection units (PDUs) based on perovskite materials for imaging. First, the key characteristics and indexes of perovskite materials and PDUs are introduced. Then, the PDUs of conventional imaging in UV–vis–NIR band are introduced from organic–inorganic hybrid and all‐inorganic perovskite materials respectively. Then, the research of perovskite materials in X‐ray image detection and biological imaging is summarized. Finally, the application prospects of perovskite materials in PDUs imaging is discussed.

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Section: Perovskite Materials For X-ray Image Detectionmentioning

confidence: 99%

Advances in Photoelectric Detection Units for Imaging Based on Perovskite Materials

Wang

2022

Laser & Photonics Reviews

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“…The NanoBPM profile monitor (Kachatkou et al , 2013) commercialised by FMB Oxford is essentially a pinhole camera observing the fluorescence generated by the X-ray beam footprint in a thin membrane.…”

Section: X-ray Source Optics and Diagnosticsmentioning

confidence: 99%

Current advances in synchrotron radiation instrumentation for MX experiments

Owen

Juanhuix

Fuchs

2016

Archives of Biochemistry and Biophysics

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Following pioneering work 40 years ago, synchrotron beamlines dedicated to macromolecular crystallography (MX) have improved in almost every aspect as instrumentation has evolved. Beam sizes and crystal dimensions are now on the single micron scale while data can be collected from proteins with molecular weights over 10 MDa and from crystals with unit cell dimensions over 1000 Å. Furthermore it is possible to collect a complete data set in seconds, and obtain the resulting structure in minutes. The impact of MX synchrotron beamlines and their evolution is reflected in their scientific output, and MX is now the method of choice for a variety of aims from ligand binding to structure determination of membrane proteins, viruses and ribosomes, resulting in a much deeper understanding of the machinery of life. A main driving force of beamline evolution have been advances in almost every aspect of the instrumentation comprising a synchrotron beamline. In this review we aim to provide an overview of the current status of instrumentation at modern MX experiments. The most critical optical components are discussed, as are aspects of endstation design, sample delivery, visualization and positioning, the sample environment, beam shaping, detectors and data acquisition and processing.

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“…However, the measured beam position is determined by both the source position and angle. A single PBPM does not provide independent information about the photon beam source position and angle (Tucoulou et al, 2008;Kachatkou et al, 2013). The photon beam angle also needs to be monitored to account for the negative effects of beam angle instability (Tucoulou et al, 2008;Hahn et al, 1998;Kyele et al, 2007;Morse et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

A phase-space beam position monitor for synchrotron radiation

Samadi

Bassey

Martinson

et al. 2015

J Synchrotron Radiat

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The stability of the photon beam position on synchrotron beamlines is critical for most if not all synchrotron radiation experiments. The position of the beam at the experiment or optical element location is set by the position and angle of the electron beam source as it traverses the magnetic field of the bend-magnet or insertion device. Thus an ideal photon beam monitor would be able to simultaneously measure the photon beam's position and angle, and thus infer the electron beam's position in phase space. X-ray diffraction is commonly used to prepare monochromatic beams on X-ray beamlines usually in the form of a double-crystal monochromator. Diffraction couples the photon wavelength or energy to the incident angle on the lattice planes within the crystal. The beam from such a monochromator will contain a spread of energies due to the vertical divergence of the photon beam from the source. This range of energies can easily cover the absorption edge of a filter element such as iodine at 33.17 keV. A vertical profile measurement of the photon beam footprint with and without the filter can be used to determine the vertical centroid position and angle of the photon beam. In the measurements described here an imaging detector is used to measure these vertical profiles with an iodine filter that horizontally covers part of the monochromatic beam. The goal was to investigate the use of a combined monochromator, filter and detector as a phase-space beam position monitor. The system was tested for sensitivity to position and angle under a number of synchrotron operating conditions, such as normal operations and special operating modes where the photon beam is intentionally altered in position and angle at the source point. The results are comparable with other methods of beam position measurement and indicate that such a system is feasible in situations where part of the synchrotron beam can be used for the phase-space measurement.

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In situX-ray beam imaging using an off-axis magnifying coded aperture camera system

Cited by 8 publications

References 21 publications

Advances in Photoelectric Detection Units for Imaging Based on Perovskite Materials

Advances in Photoelectric Detection Units for Imaging Based on Perovskite Materials

Current advances in synchrotron radiation instrumentation for MX experiments

A phase-space beam position monitor for synchrotron radiation

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