Full-field spectroscopic measurement of the X-ray beam from a multilayer monochromator using a hyperspectral X-ray camera

Boone, Matthieu N.; Assche, Frederic Van; Vanheule, S.; Cipiccia, Silvia; Wang, Hongchang; Vincze, László; Hoorebeke, Luc Van

doi:10.1107/s1600577519015212

Cited by 10 publications

(6 citation statements)

References 32 publications

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“…However, even at synchrotron and X-ray free-electron lasers (XFEL) [9] facilities hyperspectral cameras can be combined with established imaging techniques to enable novel experiments to take place, such as in hyperspectral dark-field Xray imaging [10], or hyperspectral ptychographic imaging [11]. Finally, these hyperspectral systems also provide new diagnostic tools for lab setups and beamlines, offering accurate measurement of source spectra and optics parameters, as demonstrated previously by the authors [12].…”

Section: Introductionmentioning

confidence: 84%

“…In order to investigate whether these intensity variations are also accompanied by small fluctuations in beam energy, a second beamtime was requested where the beamline was characterized using the pnCCD-based SLcam camera and the SpeXIDAQ software system. While the full discussion of this experiment has recently been published [ 12 ], this work will highlight two key aspects where the SpeXIDAQ system played a key role in the experiment.…”

Section: Case Studiesmentioning

confidence: 99%

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The Spectral X-ray Imaging Data Acquisition (SpeXIDAQ) Framework

Assche

Vanheule

Hoorebeke

et al. 2021

Sensors

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Photon counting X-ray imagers have found their way into the mainstream scientific community in recent years, and have become important components in many scientific setups. These camera systems are in active development, with output data rates increasing significantly with every new generation of devices. A different class of PCD (Photon Counting Detector) devices has become generally available, where camera data output is no longer a matrix of photon counts but instead direct measurements of the deposited charge per pixel in every frame, which requires significant off-camera processing. This type of PCD, called a hyperspectral X-ray camera due to its fully spectroscopic output, yet again increases the demands put on the acquisition and processing backend. Not only are bandwidth requirements increased, but the need to do extensive data processing is also introduced with these hyperspectral PCD devices. To cope with these new developments the Spectral X-ray Imaging Data Acquisition framework (SpeXIDAQ) has been developed. All aspects of the imaging pipeline are handled by the SpeXIDAQ framework: from detector control and frame grabbing, to processing, storage and live visualisation during experiments.

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Section: Introductionmentioning

confidence: 84%

Section: Case Studiesmentioning

confidence: 99%

The Spectral X-ray Imaging Data Acquisition (SpeXIDAQ) Framework

Assche

Vanheule

Hoorebeke

et al. 2021

Sensors

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“…Nevertheless, the energy resolution achievable using a hyperspectral detector is still lower than what is achievable at synchrotrons where the photon energy is tuned by the monochromator, allowing for extremely high spectral resolutions (down to eV level at hard X-ray range). Implementing a hyperspectral detector system can have numerous challenges, and typically require large upgrades at the detector, such as with the electronics and data acquisition software [ 157 , 158 , 159 , 160 , 161 ]. Different (hyper)spectral detectors are being developed, and can be a suitable imaging tool for pharmaceutical compounds at high X-ray energies.…”

Section: X-ray Microtomographymentioning

confidence: 99%

Characterization of Pharmaceutical Tablets by X-ray Tomography

et al. 2023

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Solid dosage forms such as tablets are extensively used in drug administration for their simplicity and large-scale manufacturing capabilities. High-resolution X-ray tomography is one of the most valuable non-destructive techniques to investigate the internal structure of the tablets for drug product development as well as for a cost effective production process. In this work, we review the recent developments in high-resolution X-ray microtomography and its application towards different tablet characterizations. The increased availability of powerful laboratory instrumentation, as well as the advent of high brilliance and coherent 3rd generation synchrotron light sources, combined with advanced data processing techniques, are driving the application of X-ray microtomography forward as an indispensable tool in the pharmaceutical industry.

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“…По сравнению с кристаллами монохроматоры на основе МРЗ увеличивают интенсивность излучения вплоть до двух порядков, что делает их крайне перспективными для рентгеновской микроскопии, литографии и целого ряда других приложений, где требуется " собрать" как можно больше фотонов [1][2][3]. В условиях синхротронов 3-го и 4-го поколений, а также рентгеновских лазеров на свободных электронах, в ряде случаев МРЗ позволяют перейти от криогенного к водяному охлаждению рабочих отражающих элементов соответствующих монохроматоров, так как из-за меньших углов падения плотность мощности падающего излучения на поверхности МРЗ более чем на порядок меньше, чем на кристалле [4,5].…”

Section: Introductionunclassified

Проект двухзеркального монохроматора на диапазон энергий фотонов 8-36 keV для синхротрона "CКИФ"

Чхало¹,

Гарахин²,

Малышев³

et al. 2022

Журнал Технической Физики

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A project of an X-ray monochromator for the «SKIF» synchrotron based on two flat mirrors with multilayer reflective coatings is reported. The concept of the monochromator is based on the absence of precision mechanical systems and feedthroughs in vacuum, which significantly reduces mirror surface contamination and increases scanning accuracy. In addition, the overall structure of the device is greatly simplified in this way, which in turn leads to a significant reduction in the total cost and labor for manufacturing. The grazing angle of incidence of radiation on the mirrors in the process of scanning by photon energy varies within 0.5-1.3º. The length of the mirrors is 120 mm, the assumed size of the input beam is 1×1 mm2. A wide operating energy range, 8-36 keV, is achieved through the use of 3 strip-mirrors with coatings of different chemical composition, namely: Mo/B4C, W/B4C and Cr/Be. The article presents the X-ray optical scheme, the expected reflection coefficients and spectral selectivity of the monochromator, the results of the calculation of thermally induced surface deformations and the corresponding slope errors of the first mirror.

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Full-field spectroscopic measurement of the X-ray beam from a multilayer monochromator using a hyperspectral X-ray camera

Abstract: Full-field spectroscopic measurements of the X-ray beam from a multilayer monochromator are presented. With these measurements, the striping artefacts often found when using these devices can be fully characterized.

Cited by 10 publications

References 32 publications

The Spectral X-ray Imaging Data Acquisition (SpeXIDAQ) Framework

The Spectral X-ray Imaging Data Acquisition (SpeXIDAQ) Framework

Characterization of Pharmaceutical Tablets by X-ray Tomography

Проект двухзеркального монохроматора на диапазон энергий фотонов 8-36 keV для синхротрона "CКИФ"

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