Results 21 to 30 of about 1,110,244 (228)
GRB Redshift determination in the X-ray band [PDF]
, 1999 If gamma-ray bursts originate in dense stellar forming regions, the interstellar material can imprint detectable absorption features on the observed X-ray spectrum.
. +5 more
core +2 more sources
MFA-net: Object detection for complex X-ray cargo and baggage security imagery.
PLoS ONE, 2022 Deep convolutional networks have been developed to detect prohibited items for automated inspection of X-ray screening systems in the transport security system.
Thanaporn Viriyasaranon +2 more
doaj +1 more source
X-ray emission from an FU Ori star in early outburst: HBC 722 [PDF]
, 2014 Aims: We conducted the first X-ray observations of the newly erupting FU Ori-type outburst in HBC 722 (V2493 Cyg) with the aim to characterize its X-ray behavior and near-stellar environment during early outburst.
Green, Joel +3 more
core +2 more sources
Quantum Enhanced X-ray Detection
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
doaj +1 more source
X-ray Photon Counting and Two-Color X-ray Imaging Using Indirect Detection
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
doaj +1 more source
Combination of deep learning with representation learning in X-ray prohibited item detection
Frontiers in Physics, 2023 During X-ray inspection detection, a detector converts the collected X-rays from objects into electrical signals, which are then transmitted to a computer for image processing and analysis.
Jianghao Rao +8 more
doaj +1 more source
Pixel-Level Analysis for Enhancing Threat Detection in Large-Scale X-ray Security Images
Applied Sciences, 2021 Threat detection in X-ray security images is critical for preserving public safety. Recently, deep learning algorithms have begun to be adopted for threat detection tasks in X-ray security images.
Joanna Kazzandra Dumagpi, Yong-Jin Jeong
doaj +1 more source
Gamma rays from microquasars Cygnus X-1 and Cygnus X-3 [PDF]
, 2017 Gamma-ray observations of microquasars at high and very-high energies can provide valuable information of the acceleration processes inside the jets, the jet-environment interaction and the disk-jet coupling.
Aharonian, F. +11 more
core +2 more sources
The XMM-Newton serendipitous survey. VII. The third XMM-Newton serendipitous source catalogue [PDF]
, 2016 Thanks to the large collecting area (3 x ~1500 cm$^2$ at 1.5 keV) and wide field of view (30' across in full field mode) of the X-ray cameras on board the European Space Agency X-ray observatory XMM-Newton, each individual pointing can result in the ...
Ballet, J. +39 more
core +5 more sources
X-Ray Emission from the Pre-Planetary Nebula Henize 3-1475 [PDF]
, 2003 We report the first detection of X-ray emission in a pre-planetary nebula, Hen 3-1475. Pre-planetary nebulae are rare objects in the short transition stage between the Asymptotic Giant Branch and planetary nebula evolutionary phases, and Hen 3-1475 ...
Blackman, Eric G. +4 more
core +3 more sources