Performance of spectroscopy detectors and associated electronics measured at SOLEIL synchrotron

Bordessoule, Michel; Fonda, Emiliano; Guignot, Nicolas; Itié, J. P.; Menneglier, Claude; Orsini, F.

doi:10.1063/1.5084701

Cited by 4 publications

(5 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A new generation of DPPs, like XIA-FalconX [7,8] or Xspress3 [9,10], has provided better performance at high ICR by reducing the dead time, especially for Xspress3, and pile-up intensity, especially for XIA-FalconX [5]. Another interesting DPP is now available commercially, DANTE, which features better performance than previous generation [11].…”

Section: Jinst 18 T06011mentioning

confidence: 99%

“…3. The measurement time (𝜏 1 ), defined as the minimum interval time between two successive impulses that is acceptable by the DPP for a correct reconstruction of energy values [5]. This parameter is calculated from the dependence of OCR and ICR, using the expression:…”

Section: The Peak Stability Between 10 Kcps and 1 Mcpsmentioning

confidence: 99%

“…4. The time resolution (𝜏 2 , or pile-up rejection power), defined as the minimum interval time between two successive impulses for which the DPP can separate them [5]. This parameter is estimated from the dependence of the pile-up ratio of intensities (i.e., the ratio of intensities of the K 𝛼 -K 𝛼 pile-up line (Int(2)) and the 𝐾 𝛼 line (Int(1)) with the ICR, using the expression…”

Section: The Peak Stability Between 10 Kcps and 1 Mcpsmentioning

confidence: 99%

“…The atoms present in the sample are excited by the incident X-rays and, by a de-excitation process, each atom in the sample emits X-ray photons. In fluorescence mode, these photons are collected by an energy-resolved detector, either a Silicon Drift Detector (SDD) [3] or a High Purity Germanium detector (HPGe) [4]) equipped with a Digital Pulse Processor (DPP) [5]. This signal is directly proportional to the element concentration in the sample and is calculated by the integral of each peak present in the fluorescence spectrum.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

DANTE Digital Pulse Processor for XRF and XAS experiments

Iguaz

Bombelli²,

Meo³

et al. 2023

J. Inst.

Self Cite

View full text Add to dashboard Cite

DANTE is a new Digital Pulse Processor (DPP) developed for fluorescence detectors, like Silicon Drift Detectors (SDDs) or High Purity Germanium detectors (HPGe), used in X-ray Fluorescence (XRF) and X-ray Absorption Spectroscopy (XAS) experiments at synchrotron facilities. Its main features are its optimal energy resolution and peak stability for detector count rate values up to 1–2 Mcps, and its enhanced rejection of pile-up events. In this paper, we present the first complete evaluation of DANTE performance in SOLEIL synchrotron facility. DANTE has been tested in laboratory with an X-ray generator source and in different experiments at LUCIA and PUMA beamlines at SOLEIL.

show abstract

Section: Jinst 18 T06011mentioning

confidence: 99%

Section: The Peak Stability Between 10 Kcps and 1 Mcpsmentioning

confidence: 99%

Section: The Peak Stability Between 10 Kcps and 1 Mcpsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

DANTE Digital Pulse Processor for XRF and XAS experiments

Iguaz

Bombelli²,

Meo³

et al. 2023

J. Inst.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The time resolution models pile-up effect, i.e., the efficiency to resolve two induced signals close in time. These two parameters are basically defined by the type of digital filter [23]. Values of 1430 ns for measurement time and of 300 ns for time resolution have been set based on experimental data of a germanium detector equipped with XIA-DXP-xMAP DPP [24,25].…”

Section: Signal Digitization and Energy Spectrummentioning

confidence: 99%

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

2022

Self Cite

View full text Add to dashboard Cite

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.

show abstract