Overview of multi-element monolithic germanium detectors for XAFS experiments at diamond light source

Chatterji, S.; Dennis, G.; Helsby, W.; Dent, A. J.; Díaz‐Moreno, Sofía; Cibin, Giannantonio; Tartoni, N.

doi:10.1063/1.4952902

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…At the P65 beamline, PETRA III, Deutsches Elektronen Synchrotron (DESY, Germany), a Si-Passivated Implanted Planar Silicon (Si-PIPS) single channel detector is used. At the I20-spectroscopy beamline, the Diamond Light Source (DLS, United Kingdom), a Ge-fluorescence detector 13 with 64 channels is used. The experimental setup according to Fig.…”

Section: The Xas Experimentsmentioning

confidence: 99%

In situ cell for x-ray absorption spectroscopy of low volatility compound vapors

Levish

Winterer

2020

Review of Scientific Instruments

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Section: The Xas Experimentsmentioning

confidence: 99%

In situ cell for x-ray absorption spectroscopy of low volatility compound vapors

Levish

Winterer

2020

Review of Scientific Instruments

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“…• The presence of titanium fluorescence X-ray emission lines (at 4.51 and 4.93 keV) in the simulation, while they are absent in experimental spectrum. The titanium collimator is probably coated with aluminium to block its fluorescence lines as cited here [28]. This coating has not been included in the detector model due to the absence of information in the detector datasheet.…”

Section: Jinst 17 P02013mentioning

confidence: 99%

Allpix squared simulations of multi-element germanium detectors for synchrotron applications

2022

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X-rays spectroscopy experiments at synchrotron facilities were limited for many years by the maximum input count rate and the signal-to-background ratio of germanium fluorescence detectors. These limitations are related to the germanium semiconductor device, the sensor configuration and its response to the incident X-ray flux at different energies. In order to understand and quantify such limitations, physics simulation of the detector response is a powerful tool to provide guidelines for designing, prototyping and improving detectors, as well as modelling experimental environments, which reduces time and cost of development. For this purpose, a first complete and operational simulation chain based on Allpix Squared framework is presented, customized to multi-element germanium detectors and combined with three-dimensional simulations of the electric field and the weighting potential, based on COMSOL Multiphysics®. Based on this simulation chain, a quantification of charge sharing effect as well as signal-to-background ratio at different beam energies has been made for a germanium detector equipped with and without collimator. In addition, two experimental measurements have been performed on the SAMBA beamline at SOLEIL synchrotron. The experimental data were used to set up the full simulation chain and good agreements have been observed between data and simulation.

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First results using the new DLS Xspress4 digital pulse processor with monolithic segmented HPGe detectors on XAS beamlines

Dennis¹,

Helsby²,

Omar³

et al. 2019

AIP Conference Proceedings

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Overview of multi-element monolithic germanium detectors for XAFS experiments at diamond light source

Cited by 5 publications

References 2 publications

In situ cell for x-ray absorption spectroscopy of low volatility compound vapors

In situ cell for x-ray absorption spectroscopy of low volatility compound vapors

Allpix squared simulations of multi-element germanium detectors for synchrotron applications

First results using the new DLS Xspress4 digital pulse processor with monolithic segmented HPGe detectors on XAS beamlines

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