English
Related papers

Related papers: A charge transfer inefficiency correction model fo…

200 papers

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

To efficiently detect energetic light charged particles, it is common to use arrays of energy-loss telescopes involving two or more layers of detection media. As the energy of the particles increases, thicker layers are usually needed.…

Instrumentation and Detectors · Physics 2021-10-27 S. Sweany , W. G. Lynch , K. Brown , A. Anthony , Z. Chajecki , D. Dell'Aquila , P. Morfouace , F. C. E. Teh , C. Y. Tsang , M. B. Tsang , R. S. Wang , K. Zhu

We present a convenient tool (ChaSES) which allows to search for extended structures in Chandra X-ray Observatory Advanced CCD Imaging Spectrometer (ACIS) images. The tool relies on DBSCAN clustering algorithm to detect regions with…

High Energy Astrophysical Phenomena · Physics 2022-08-23 Igor Volkov , Oleg Kargaltsev

The TROPOMI-SWIR HgCdTe detector on the Sentinel-5 Precursor mission has been performing in-orbit measurements of molecular absorption in Earth's atmosphere since its launch in October 2017. In its polar orbit the detector is continuously…

The Atmospheric Dispersion Corrector (ADC) of the Gemini Planet Imager (GPI) corrects the chromatic dispersion caused by differential atmospheric refraction (DAR), making it an important optic for exoplanet observation. Despite requiring…

Instrumentation and Methods for Astrophysics · Physics 2024-04-12 Malachi Noel , Jason J. Wang , Bruce Macintosh , Katie Crotts , Christian Marois , Eric L. Nielsen , Robert J. De Rosa , Katie Scalzo , Kent Wallace

Photon-counting detectors based on CZT are essential in nuclear medical imaging, particularly for SPECT applications. Although CZT detectors are known for their precise energy resolution, defects within the CZT crystals significantly impact…

Intrapixel nonuniformity is known to exist in CCD and CMOS image sensors, though the effects in backside illuminated (BSI) CCDs are too small to be a concern for most astronomical observations. However, projects like the Large Synoptic…

Instrumentation and Methods for Astrophysics · Physics 2017-07-25 Hu Zhan , Xin Zhang , Li Cao

During the scheduled high luminosity upgrade of LHC, the world's largest particle physics accelerator at CERN, the position sensitive silicon detectors installed in the vertex and tracking part of the CMS experiment will face more intense…

The primary purpose of the collective Thomson scattering (CTS) diagnostic at ITER is to measure the properties of fast-ion populations, in particular those of fusion-born $\alpha$-particles. Based on the present design of the diagnostic, we…

We have used the angular Autocorrelation Function (AcF) in a pointing with Chandra's ACIS-S instrument. However, we determined that the contribution of Chandra's background below 1 keV is too high to achieve reasonable sensitivity.

Cosmology and Nongalactic Astrophysics · Physics 2012-09-28 Massimiliano Galeazzi , Anjali Gupta , Kevin Huffenberger , Eugenio Ursino

Future high-resolution imaging X-ray observatories may require detectors with both fine spatial resolution and high quantum efficiency at relatively high X-ray energies (>5keV). A silicon imaging detector meeting these requirements will…

In gamma-ray astronomy and cosmic-ray physics, the continuous approximation of inverse Compton scattering (ICS) is widely adopted to model the evolution of electron energy. However, when the initial electron energy approaches $\sim100$ TeV,…

High Energy Astrophysical Phenomena · Physics 2026-04-21 Junji Xia , Xingjian Lv , Kun Fang , Siming Liu

AXIS, a Probe mission concept now in a Phase A study, will provide transformative studies of high-energy astrophysical phenomena thanks to its high-resolution X-ray spectral imaging. These capabilities are enabled by improvements to the…

We update a physically-motivated model of radiation damage in the Hubble Space Telescope Advanced Camera for Surveys/Wide Field Channel, using data up to mid 2010. We find that Charge Transfer Inefficiency increased dramatically before…

Instrumentation and Methods for Astrophysics · Physics 2015-05-20 Richard Massey

The Cadmium Zinc Telluride Imager (CZTI) onboard AstroSat is designed for hard X-ray imaging and spectroscopy in the energy range of 20 - 100 keV. The CZT detectors are of 5 mm thickness and hence have good efficiency for Compton…

Instrumentation and Methods for Astrophysics · Physics 2021-03-01 Abhay Kumar , Tanmoy Chattopadhyay , Santosh V Vadawale , A. R. Rao , Soumya Gupta , Mithun N. P. S. , Varun Bhalerao , Dipankar Bhattacharya

Using the high-resolution OLED screen of a smartphone to project arbitrary scenes and patterns can open a complete new dimension for testing sensors in the visible. Based on an original concept from JPL (Jet Propulsion Laboratory), this…

Instrumentation and Methods for Astrophysics · Physics 2020-12-10 Thibaut Prod'homme , Patricia Liebing , Peter Verhoeve , Ilya Menyaylov , Frédéric Lemmel , Hans Smit , Sander Blommaert , Dennis Breeveld , Brian Shortt

The consecutive transients (CT) method is a diagnostics approach combining experimental and computational techniques to probe the plasma parameters of Charge Breeder Electron Cyclotron Resonance Ion Sources (CB-ECRIS). The method is based…

Accelerator Physics · Physics 2023-10-18 Julien Angot , Olli Tarvainen , Hannu Koivisto , Miha Luntinen , Thomas Thuillier , Ville Toivanen

Thick, fully depleted p-channel charge-coupled devices (CCDs) have been developed at the Lawrence Berkeley National Laboratory (LBNL). These CCDs have several advantages over conventional thin, n-channel CCDs, including enhanced quantum…

The Cold-Neutron Inelastic Spectrometer (CNIS) is a direct-geometry, time-of-flight instrument designed for China Spallation Neutron Source (CSNS) and optimized to probe low-energy lattice and magnetic excitations. The instrument integrates…

Applied Physics · Physics 2026-05-12 Qian Zhao , Xiaowen Zhang , Songwen Xiao , Wei Luo , Zecong Qin , Zhuang Xu , Yu Feng , Xin Tong
‹ Prev 1 3 4 5 6 7 10 Next ›