Results 11 to 20 of about 1,110,290 (291)
Quantum Enhanced X-ray Detection [PDF]
Physical Review X, 2019 We present the first experimental demonstration of quantum enhanced detection at x-ray wavelengths. We show that x-ray pairs that are generated by spontaneous down-conversion can be used for the generation of heralded x-ray photons and directly measure ...
S. Sofer +4 more
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X-ray Photon Counting and Two-Color X-ray Imaging Using Indirect Detection [PDF]
Sensors, 2016 In this paper, we report on the design and performance of a 1 cm2, 90 × 92-pixel image sensor. It is made X-ray sensitive by the use of a scintillator.
Bart Dierickx +5 more
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NEW X-RAY DETECTIONS OF WNL STARS [PDF]
The Astronomical Journal, 2012 Previous studies have demonstrated that putatively single nitrogen-type Wolf-Rayet stars (WN stars) without known companions are X-ray sources. However, almost all WN star X-ray detections so far have been of earlier WN2 - WN6 spectral subtypes. Later WN7 - WN9 subtypes (also known as WNL stars) have proved more difficult to detect, an important ...
Skinner, Stephen Lee +4 more
openaire +3 more sources
EAOD‐Net: Effective anomaly object detection networks for X‐ray images
IET Image Processing, 2022 Anomaly object detection is the core technology in the application for X‐ray images. However, the accuracy of current X‐ray anomaly object detection method still needs to be improved.
Chunjie Ma +4 more
doaj +1 more source
Gong-kuang zidonghua, 2022 The X-ray source is the core component equipment of X-ray transmission detection. The stability and reliability of the X-ray source determine the performance of X-ray transmission detection.
LI Zhe, WANG Wenqing
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Three-dimensional X-ray observation of atmospheric biological samples by linear-array scanning-electron generation X-ray microscope system. [PDF]
PLoS ONE, 2011 Recently, we developed a soft X-ray microscope called the scanning-electron generation X-ray microscope (SGXM), which consists of a simple X-ray detection system that detects X-rays emitted from the interaction between a scanning electron beam (EB) and ...
Toshihiko Ogura
doaj +1 more source
IRCM‐Caps: An X‐ray image detection method for COVID‐19
The Clinical Respiratory Journal, 2023 Objective COVID‐19 is ravaging the world, but traditional reverse transcription‐polymerase reaction (RT‐PCR) tests are time‐consuming and have a high false‐negative rate and lack of medical equipment.
Shuo Qiu, Jinlin Ma, Ziping Ma
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First detection of phase-dependent colliding wind X-ray emission outside the Milky Way [PDF]
, 2007 After having reported the detection of X-rays emitted by the peculiar system HD5980, we assess here the origin of this high-energy emission from additional X-ray observations obtained with XMM-Newton.
Anthony F. J. Moffat +7 more
core +3 more sources
The z=5.8 Quasar SDSSp J1044-0125: A Peek at Quasar Evolution? [PDF]
, 2001 The newly discovered z=5.8 quasar SDSSp J104433.04-012502.2 was recently detected in X-rays and found to be extremely X-ray weak. Here we present the hardness ratio analysis of the XMM-Newton observation.
Brandt W. N., Maiolino R., Smita Mathur
core +3 more sources
New emission line at ~3.5 keV - observational status, connection with radiatively decaying dark matter and directions for future studies [PDF]
, 2014 Recent works of [1402.2301,1402.4119], claiming the detection of extra emission line with energy ~3.5 keV in X-ray spectra of certain clusters of galaxies and nearby Andromeda galaxy, have raised considerable interest in astrophysics and particle physics
Iakubovskyi, Dmytro
core +3 more sources