Explanipedia

Improved pixel-wise calibration for charge-integrating hybrid pixel detectors with performance validation Open

X. Xie, A. Bergamaschi, Martin Brückner, M. Carulla, R. Dinapoli , et al. · 2025

A 1 Megapixel charge integrating hybrid pixel detector for electron diffraction Open

K. Ferjaoui, Kiyofumi Takaba, Tim Gruene, E. Fröjdh, M. Carulla , et al. · 2025

Electrons have emerged as an important complement to X-rays in crystallography, particularly for compounds that present challenges in growing crystals sufficiently large for synchrotron radiation (5–10 µm) or laboratory diffractometers (∼5…

High frame rate RIXS spectroscopy using a JUNGFRAU detector with an iLGAD sensor Open

Loïc Le Guyader, V. Hinger, M. Carulla, Yi–Ping Chang, Michael Grimes , et al. · 2025

Resonant inelastic X-ray scattering (RIXS) is a powerful photon-in, photon-out spectroscopy technique for probing electronic, magnetic, and lattice excitations in matter. Time-resolved RIXS extends this capability through a stroboscopic op…

Improved Pixel-wise Calibration for Charge-Integrating Hybrid Pixel Detectors with Performance Validation Open

Xiaohui Xie, A. Bergamaschi, Martin Brückner, Simon Ebner, K. Ferjaoui , et al. · 2025

The MÖNCH hybrid pixel detector, with a 25 \textmu m pixel pitch and fast charge-integrating readout, has demonstrated subpixel resolution capabilities for X-ray imaging and deep learning-based electron localization in electron microscopy.…

Optimization and validation of charge transport simulation for hybrid pixel detectors incorporating the repulsion effect Open

X. Xie, A. Bergamaschi, Martin Brückner, M. Carulla, R. Dinapoli , et al. · 2025

Optimization and validation of charge transport simulation for hybrid pixel detectors incorporating the repulsion effect Open

X. Xie, A. Bergamaschi, Martin Brückner, M. Carulla, R. Dinapoli , et al. · 2025

For emerging applications of hybrid pixel detectors which require high spatial resolution, e.g., subpixel interpolation in X-ray imaging and deep learning-based electron localization, accurate modeling of charge transport processes in the …

First results of the ADC-SAR-05 prototype towards On-chip digitization of the JUNGFRAU charge-integrating X-ray pixel detector Open

P. Sieberer, A. Bergamaschi, Martin Brückner, M. Carulla, R. Dinapoli , et al. · 2025

JUNGFRAU is a state-of-the-art charge-integrating X-ray detector widely used for imaging, diffraction and spectroscopy experiments at synchrotrons and free electron lasers. The current frame rate is 2.2 kHz, limited by analog signal integr…

Investigating the Impact of Sensor Layout on Radiation Hardness in 25 µm Pitch Hybrid Pixel Detectors for 4th Generation Synchrotron Light Sources Open

Julian Heymes, F. Baruffaldi, A. Bergamaschi, Martin Brückner, M. Carulla , et al. · 2025

With the evolution of synchrotron light sources to fourth generation (diffraction-limited storage rings), the brilliance is increased by several orders of magnitude compared to third generation facilities. For example, the Swiss Light Sour…

MYTHEN III: advancements in single photon counting detectors for synchrotron powder diffraction experiments Open

M. Andrä, A. Bergamaschi, F. Baruffaldi, Martin Brückner, M. Carulla , et al. · 2025

The single photon counting microstrip detector MYTHEN III was developed at the Paul Scherrer Institute to satisfy the increasing demands in detector performance of synchrotron radiation experiments, focusing on time-resolved and on-edge po…

Signal stability of high-Z sensors at synchrotron light sources Open

D. Greiffenberg, Kirsty A. Paton, J.H. Mulvey, A. Bergamaschi, Martin Brückner , et al. · 2025

The use of high-Z sensors for scientific applications at synchrotrons will gain more importance due to the upgrade of many light sources around the world to diffraction limited light sources for which the photon flux at high photon energie…

Optimizing charge transport simulation for hybrid pixel detectors Open

X. Xie, R. Barten, A. Bergamaschi, B. Braham, Martin Brückner , et al. · 2024

To enhance the spatial resolution of the MÖNCH 25 µm pitch hybrid pixel detector, deep learning models have been trained using both simulation and measurement data. Challenges arise when comparing simulation-based deep learning models to m…

Metastable water at several compression rates and its freezing kinetics into ice VII Open

Charles Pépin, Ramesh André, F. Occelli, Florian Dembele, A. Mozzanica , et al. · 2024

Water can be dynamically over-compressed well into the stability field of ice VII. Whether water then transforms into ice VII, vitreous ice or a metastable novel crystalline phase remained uncertain. We report here the freezing of over-com…

Metastable water at several compression rates and its freezingkinetics into ice VII Open

Charles Pépin, Ramesh André, F. Occelli, Florian Dembele, A. Mozzanica , et al. · 2024

Water can be dynamically over-compressed well into the stability field of ice VII. Whether water then transforms into ice VII, vitreous ice or a metastable novel crystalline phase remained uncertain. We report here the freezing of over-com…

Results of the 2022 ECFA Early-Career Researchers Panel survey on career prospects and diversity Open

Julia Allen, K. Augsten, G. Benato, Neven Blaskovic Kraljevic, F. Brizioli , et al. · 2024

This document presents the outcomes of a comprehensive survey conducted among early career researchers (ECRs) in academic particle physics. Running from September 24, 2022, to March 3, 2023, the survey gathered responses from 759 ECRs empl…

Resolving soft X-ray photons with a high-rate hybrid pixel detector Open

V. Hinger, R. Barten, F. Baruffaldi, A. Bergamaschi, G. Borghi , et al. · 2024

Due to their high frame rates and dynamic range, large area coverage, and high signal-to-noise ratio, hybrid silicon pixel detectors are an established standard for photon science applications at X-ray energies between 2 keV and 20 keV. Th…

Quantum Efficiency Measurement and Modeling of Silicon Sensors Optimized for Soft X-ray Detection Open

M. Carulla, R. Barten, F. Baruffaldi, A. Bergamaschi, G. Borghi , et al. · 2024

Hybrid pixel detectors have become indispensable at synchrotron and X-ray free-electron laser facilities thanks to their large dynamic range, high frame rate, low noise, and large area. However, at energies below 3 keV, the detector perfor…

Balancing gain and dynamic range in a 25 µm pitch hybrid pixel detector Open

J. Heymes, R. Barten, F. Baruffaldi, A. Bergamaschi, Martin Brückner , et al. · 2024

MÖNCH is a hybrid pixel detector featuring 25 µm pixel pitch and analogue readout for X-ray imaging at synchrotron radiation (SR) facilities. Sub-pixel spatial resolution has been demonstrated using charge sharing and interpolation algorit…

Characterization of iLGADs using soft X-rays Open

Antonio Liguori, R. Barten, F. Baruffaldi, A. Bergamaschi, G. Borghi , et al. · 2023

Experiments at synchrotron radiation sources and X-ray Free-Electron Lasers in the soft X-ray energy range (250 eV–2 keV) stand to benefit from the adaptation of the hybrid silicon detector technology for low energy photons. Inverse Low Ga…

First operation of the JUNGFRAU detector in 16-memory cell mode at European XFEL Open

Marcin Sikorski, Marco Ramilli, Raphaël de Wijn, V. Hinger, A. Mozzanica , et al. · 2023

The JUNGFRAU detector is a well-established hybrid pixel detector developed at the Paul Scherrer Institut (PSI) designed for free-electron laser (FEL) applications. JUNGFRAU features a charge-integrating dynamic gain switching architecture…

Characterization of iLGADs using soft X-rays Open

Antonio Liguori, R. Barten, F. Baruffaldi, A. Bergamaschi, G. Borghi , et al. · 2023

Experiments at synchrotron radiation sources and X-ray Free-Electron Lasers in the soft X-ray energy range ($250$eV--$2$keV) stand to benefit from the adaptation of the hybrid silicon detector technology for low energy photons. Inverse Low…

Kilohertz serial crystallography with the JUNGFRAU detector at a fourth-generation synchrotron source Open

Filip Leonarski, Jie Nan, Zdeněk Matěj, Quentin Bertrand, Antonia Furrer , et al. · 2023

Serial and time-resolved macromolecular crystallography are on the rise. However, beam time at X-ray free-electron lasers is limited and most third-generation synchrotron-based macromolecular crystallography beamlines do not offer the nece…

Study of the internal quantum efficiency of FBK sensors with optimized entrance windows Open

M. Carulla, M. Centis Vignali, R. Barten, F. Baruffaldi, A. Bergamaschi , et al. · 2023

Single-photon detection of X-rays in the energy range of 250 eV to 1 keV is difficult for hybrid detectors because of the low quantum efficiency and low signal-to-noise ratio. The low quantum efficiency is caused by the absorption of soft …

The ECFA Early Career Researcher's Panel: composition, structure, and activities, 2021 - 2022 Open

ECFA Early-Career Researcher Panel, NULL AUTHOR_ID, A. A. Geanta, C. Amendola, Liliana Apolinário , et al. · 2022

The European Committee for Future Accelerators (ECFA) Early Career Researcher's (ECR) panel, which represents the interests of the ECR community to ECFA, officially began its activities in January 2021. In the first two years, the panel ha…

The ECFA Early Career Researcher's Panel: composition, structure, and activities, 2021 -- 2022 Open

A. A. Geanta, C. Amendola, Liliana Apolinário, J.-H. Arling, Adi Ashkenazi , et al. · 2022

The European Committee for Future Accelerators (ECFA) Early Career Researcher's (ECR) panel, which represents the interests of the ECR community to ECFA, officially began its activities in January 2021. In the first two years, the panel ha…

Detection of MeV electrons using a charge integrating hybrid pixel detector Open

E. Fröjdh, F. Baruffaldi, A. Bergamaschi, M. Carulla, R. Dinapoli , et al. · 2022

Electrons are emerging as a strong complement to X-rays for diffraction based studies. In this paper we investigate the performance of a JUNGFRAU detector with 320 um thick silicon sensor at a pulsed electron source. Originally developed f…

Development of LGAD sensors with a thin entrance window for soft X-ray detection Open

Jiaguo Zhang, R. Barten, F. Baruffaldi, A. Bergamaschi, G. Borghi , et al. · 2022

We show the developments carried out to improve the silicon sensor technology for the detection of soft X-rays with hybrid X-ray detectors. An optimization of the entrance window technology is required to improve the quantum efficiency. Th…

First demonstration of on-chip interpolation using a single photon counting microstrip detector Open

A. Bergamaschi, M. Andrä, R. Barten, F. Baruffaldi, Martin Brückner , et al. · 2022

Despite being used in many X-ray applications, hybrid single photon counting detectors are limited in spatial resolution due to the diffusion of the charge produced by single photons between neighboring electronic channels, also called cha…

Development of LGAD sensors with a thin entrance window for soft X-ray detection Open

Jiaguo Zhang, R. Barten, F. Baruffaldi, A. Bergamaschi, G. Borghi , et al. · 2022

We show the developments carried out to improve the silicon sensor technology for the detection of soft X-rays with hybrid X-ray detectors. An optimization of the entrance window technology is required to improve the quantum efficiency. Th…

Advancing the JUNGFRAU detector toward low-energy X-ray applications Open

V. Hinger, André Al Haddad, R. Barten, A. Bergamaschi, Martin Brückner , et al. · 2022

The charge-integrating hybrid silicon pixel detector JUNGFRAU has found widespread use at free-electron laser and synchrotron facilities. The detector was designed for use with hard X-rays; yet, because of its low noise, high dynamic range…

Observation of radiation damage in CdTe Schottky sensors created by 20 keV photons Open

Markus A. Meyer, M. Andrä, R. Barten, A. Bergamaschi, Martin Brückner , et al. · 2022

The polarization characteristics of ohmic and (Al-)Schottky type CdTe sensors supplied by Acrorad have been characterized with the low noise, charge integrating readout chip JUNGFRAU, revealing defined areas in the Schottky type sensors, w…

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