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This work presents a high-resolution X-ray microtomography system that uses commercial off-the-shelf (COTS) CMOS image sensors as direct detectors, relying on the sensor s intrinsic resolution to achieve tomographic reconstructions without…

Image and Video Processing · Electrical Eng. & Systems 2026-05-29 Damian L. Corzi , Jose Lipovetzky , Fabricio Alcalde Bessia , German Mato , Andres Cicuttin , Maria L. Crespo , Martin Perez , Mariano Gomez Berisso

The solar corona is orders of magnitude hotter than the underlying photosphere, but how the corona attains such high temperatures is still not understood. Soft X-ray (SXR) emission provides important diagnostics for thermal processes in the…

Solar and Stellar Astrophysics · Physics 2015-09-15 Amir Caspi , Thomas N. Woods , Harry P. Warren

A high spectral resolution observation of the diffuse X-ray background in the 60 - 1000 eV energy range has been made using an array of thirty-six 1 mm^2 micro-calorimeters flown on a sounding rocket. Detector energy resolution ranged from…

X-ray detectors made of crystalline silicon have several advantages including low dark currents, fast charge collection and high energy resolution. For high-energy x-rays, however, silicon suffers from its low atomic number, which might…

Instrumentation and Detectors · Physics 2021-01-26 Moa Yveborg , Cheng Xu , Erik Fredenberg , Mats Danielsson

This paper presents the results of the characterisation of a back-illuminated pixel sensor manufactured in Silicon-On-Insulator technology on a high-resistivity substrate with soft X-rays. The sensor is thinned and a thin Phosphor layer…

Instrumentation and Detectors · Physics 2015-06-03 Marco Battaglia , Dario Bisello , Richard Celestre , Devis Contarato , Peter Denes , Serena Mattiazzo , Craig Tindall

The response of Low Gain Avalanche Diodes (LGADs), a type of thin silicon detector with internal gain, to X-rays of energies between 6-16~keV was characterized at the Stanford Synchrotron Radiation Lightsource (SSRL). The utilized beamline…

Cryogenic soft X-ray imaging spectrometers are currently being developed for applications in the fields of Astronomy and material sciences. In this paper we present experiments on optimized single devices, which show measured energy…

Superconductivity · Physics 2018-07-04 G. Brammertz , P. Verhoeve , A. Peacock , D. Martin , N. Rando , R. den Hartog , D. J. Goldie

The spectrum of the 0.1-7.0 keV cosmic X-ray background (CXB) at galactic latitudes >|25| degrees has been measured using the BeppoSAX Low-Energy Spectrometer Concentrator (LECS). Above 1 keV the spectrum is consistent with a power-law of…

Astrophysics · Physics 2007-05-23 A. N. Parmar , M. Guainazzi , T. Oosterbroek , A. Orr , F. Favata , D. Lumb , A. Malizia

Electromagnetic radiation in the soft x-ray spectral range ($1-100~\rm{nm}$ wavelengths or $0.01-1~\rm{keV}$ photon energies) is rapidly gaining importance in both fundamental research and industrial applications. At present the degree of…

We present a comprehensive analysis of the X-ray observations obtained from \xmm\, and \chandra\, for a sample of bona-fide Compact Symmetric Objects (CSOs) to investigate their X-ray emission properties. Ultimately, we obtain 32 effective…

High Energy Astrophysical Phenomena · Physics 2025-02-04 Ying-Ying Gan , Su Yao , Tan-Zheng Wu , Hai-Ming Zhang , Jin Zhang

Recent advances in CMOS imaging sensor technology , e.g. in CMOS pixel sensors, have proven that the CMOS process is radiation tolerant enough to cope with certain radiation levels required for tracking layers in hadron collider…

X-ray polarimetry offers a unique window into neutron star physics and can provide answers to questions that cannot otherwise be probed. The up-and-coming REDSoX sounding rocket mission will be the first experiment equipped with a detector…

High Energy Astrophysical Phenomena · Physics 2025-05-29 Ruth M. E. Kelly , Herman L. Marshall , Silvia Zane , Nabil Brice , Swati Ravi , Roberto Turolla , Roberto Taverna , Denis González-Caniulef

Silicon p-n junction diodes emit low-intensity, broad-spectrum light near 1120 nm in forward bias and between 400-900 nm in reverse bias (avalanche). For the first time, we experimentally achieve optical absorption sensing of pigment in…

Optics · Physics 2020-12-15 Satadal Dutta , Peter G. Steeneken , Gerard J. Verbiest

X-ray experiments in the intermediate energy range (1-50 keV) are carried out at the Indian Centre for Space Physics (ICSP), Kolkata for space application. The purpose is to carry out developmental studies of space instruments to observe…

Instrumentation and Methods for Astrophysics · Physics 2009-12-31 Vipin K. Yadav , Sandip K. Chakrabarti , Anuj Nandi , Sourav Palit

We report on the construction, operation experience, and preliminary background measurements of an InGrid detector, i.e. a MicroMegas detector with CMOS pixel readout. The detector was mounted in the focal plane of the Abrixas X-Ray…

Instrumentation and Detectors · Physics 2015-09-07 Klaus Desch , Jochen Kaminski , Christoph Krieger , Michael Lupberger

X-ray hybrid CMOS detectors (HCDs) are a promising candidate for future x-ray missions requiring high throughput and fine angular resolution along with large field-of-view, such as the high-definition x-ray imager (HDXI) instrument on the…

Instrumentation and Methods for Astrophysics · Physics 2019-06-24 Samuel V. Hull , Abraham D. Falcone , Evan Bray , Mitchell Wages , Maria McQuaide , David N. Burrows

In recent years, tremendous progress has been made on scientific Complementary Metal Oxide Semiconductor (sCMOS) sensors, making them a promising device for future space X-ray missions. We have customized a large-format sCMOS sensor,…

Instrumentation and Methods for Astrophysics · Physics 2023-12-05 Qinyu Wu , Zhixing Ling , Chen Zhang , Shuang-Nan Zhang , Weimin Yuan

The soft X-ray imager (SXI) on the SMILE mission uses two large 4510x4510 back illuminated CCD370s to detect X-rays in the 0.2-2 keV range. These devices take heritage from the optical imaging PLATO mission CCD270s and have been optimised…

Instrumentation and Detectors · Physics 2022-10-26 S. Parsons , D. Hall , T. Buggey , A. Holland , P. Verhoeve

The Advanced X-ray Imaging Satellite (AXIS) is a NASA probe class mission concept designed to deliver arcsecond resolution with an effective area ten times that of Chandra (at launch). The AXIS focal plane features an MIT Lincoln Laboratory…

The Solar Aspect Monitor (SAM) is a pinhole camera on the Extreme-ultraviolet Variability Experiment (EVE) aboard the Solar Dynamics Observatory (SDO). SAM projects the solar disk onto the CCD through a metallic filter designed to allow…

Solar and Stellar Astrophysics · Physics 2016-05-27 C. Y. Lin , S. M. Bailey , A. Jones , D. Woodraska , A. Caspi , T. N. Woods , F. G. Eparvier , S. R. Wieman , L. V. Didkovsky