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The ST-ECF Calibration Enhancement effort for the Space Telescope Imaging Spectrograph (STIS) aims to improve data calibration via the application of physical modelling techniques. As part of this effort we have developed a model of the…

Astrophysics · Physics 2007-05-23 Paul Bristow

The STECF Calibration Enhancement effort for the Space Telescope Imaging Spectrograph (STIS) aims to improve data calibration via the application of physical modelling techniques. As part of this effort we have developed a model of the STIS…

Astrophysics · Physics 2007-05-23 Paul Bristow

A variety of on-orbit imaging and spectroscopic observations are used to characterize the Charge Transfer Efficiency (CTE) of the Charge-Coupled Device (CCD) of the Space Telescope Imaging Spectrograph (STIS) aboard the Hubble Space…

Astrophysics · Physics 2009-11-11 Paul Goudfrooij , Ralph C. Bohlin , Jesus Maiz-Apellaniz , Randy A. Kimble

The current understanding of charge transfer dynamics in Charge-Coupled Devices (CCDs) is that charge is moved so quickly from one phase to the next in a clocking sequence and with a density so low that trapping of charge in the inter-phase…

Instrumentation and Methods for Astrophysics · Physics 2018-01-04 Jesper Skottfelt , David J. Hall , Ben Dryer , Nathan Bush , Jason Gow , Andrew Holland

In four-dimensional scanning transmission electron microscopy (4D STEM) a focused beam is scanned over a specimen and a diffraction pattern is recorded at each position using a pixelated detector. During the experiment, it must be ensured…

Radiation damage to space-based Charge-Coupled Device (CCD) detectors creates defects which result in an increasing Charge Transfer Inefficiency (CTI) that causes spurious image trailing. Most of the trailing can be corrected during…

Instrumentation and Methods for Astrophysics · Physics 2015-08-26 Holger Israel , Richard Massey , Thibaut Prod'homme , Mark Cropper , Oliver Cordes , Jason Gow , Ralf Kohley , Ole Marggraf , Sami Niemi , Jason Rhodes , Alex Short , Peter Verhoeve

Charge-Coupled Device (CCD) detectors, widely used to obtain digital imaging, can be damaged by high energy radiation. Degraded images appear blurred, because of an effect known as Charge Transfer Inefficiency (CTI), which trails bright…

Instrumentation and Methods for Astrophysics · Physics 2014-03-05 Richard Massey , Tim Schrabback , Oliver Cordes , Ole Marggraf , Holger Israel , Lance Miller , David Hall , Mark Cropper , Thibaut Prod'homme , Sami-Matias Niemi

The front-illuminated (FI) CCDs in the Advanced CCD Imaging Spectrometer (ACIS) on the Chandra X-ray Observatory (Chandra) were damaged in the extreme environment of the Earth's radiation belts, causing charge traps that result in enhanced…

Astrophysics · Physics 2015-06-24 L. K. Townsley , P. S. Broos , J. A. Nousek , G. P. Garmire

Charge Coupled Devices (CCDs) have been successfully used in several high energy physics experiments over the past two decades. Their high spatial resolution and thin sensitive layers make them an excellent tool for studying short-lived…

Charge Coupled Devices (CCDs) have been successfully used in several low energy X-ray astronomical satellite over the past two decades. Their high energy resolution and high spatial resolution make them an perfect tool for low energy…

Instrumentation and Methods for Astrophysics · Physics 2013-08-09 Wang YuSa , Chen Yong , Liu XiaoYan , Cui WeiWei , Xu YuPeng , Li ChengKui , Li MaoShun , Han DaWei , Chen TianXiang , Huo Jia , Wang Juan , Li Wei , Hu Wei , Zhang Yi , Lu Bo , Yin GuoHe , Zhu Yue , Zhang ZiLiang

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

Spatio-temporal forecasting is crucial in many domains, such as transportation, meteorology, and energy. However, real-world scenarios frequently present challenges such as signal anomalies, noise, and distributional shifts. Existing…

Machine Learning · Computer Science 2025-10-30 Wei Chen , Yuxuan Liang

A hybrid readout Time Projection Chamber (TPC) has a simultaneous optical- and charge readout. The optical readout provides 2D images of particle tracks in the active volume, whilst the charge readout provides additional information on the…

Instrumentation and Detectors · Physics 2022-12-21 Alexander Deisting

Accurate modeling of charge transport and both thermal and luminescent radiation is crucial to the understanding and design of radiative thermal energy converters. Charge carrier dynamics in semiconductors are well-described by the…

Mesoscale and Nanoscale Physics · Physics 2021-07-13 William A. Callahan , Dudong Feng , Zhuomin M. Zhang , Eric S. Toberer , Andrew J. Ferguson , Eric J. Tervo

Charge Transfer Inefficiency (CTI) due to radiation damage above the Earth's atmosphere creates spurious trailing in Hubble Space Telescope (HST) images. Radiation damage also creates unrelated warm pixels - but these happen to be perfect…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Richard Massey , Chris Stoughton , Alexie Leauthaud , Jason Rhodes , Anton Koekemoer , Richard Ellis , Edgar Shaghoulian

Charge Coupled Devices (CCDs) have been successfully used in several high energy physics experiments over the past two decades. Their high spatial resolution and thin sensitive layers make them an excellent tool for studying short-lived…

Instrumentation and Detectors · Physics 2008-11-26 Andre Sopczak

Charge Coupled Devices (CCDs) have been successfully used in several high energy physics experiments over the past two decades. Their high spatial resolution and thin sensitive layers make them an excellent tool for studying short-lived…

PLATO is designed to detect Earth-sized exoplanets around solar-type stars and to measure their radii with accuracy better than \(2\%\) via the transit method. Charge transfer inefficiency (CTI), a by-product of radiation damage to CCDs,…

Earth and Planetary Astrophysics · Physics 2026-03-18 Shaunak Mishra , Reza Samadi , Diane Bérard

The calibration hardware system of the Large Synoptic Survey Telescope (LSST) is designed to measure two quantities: a telescope's instrumental response and atmospheric transmission, both as a function of wavelength. First of all, a…

Instrumentation and Methods for Astrophysics · Physics 2018-06-08 Michael W. Coughlin , Susana Deustua , Augustin Guyonnet , Nicholas Mondrik , Joseph P. Rice , Christopher W. Stubbs , John T. Woodward

Charge trapping plays an important role for the reliability of electronic devices and manifests itself in various phenomena like bias temperature instability (BTI), random telegraph noise (RTN), hysteresis or trap-assisted tunneling (TAT).…

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