Results 51 to 60 of about 222,202 (214)
Monte-Carlo-Based Estimation of the X-ray Energy Spectrum for CT Artifact Reduction
Applied Sciences, 2021 Beam hardening and scattering effects can seriously degrade image quality in polychromatic X-ray CT imaging. In recent years, polychromatic image reconstruction techniques and scatter estimation using Monte Carlo simulation have been developed to ...
Ehsan Nazemi +5 more
doaj +1 more source
Atmospheric Cerenkov astronomy of cataclysmic variables & other potential gamma ray sources [PDF]
, 1993 Recent developments in the application of the atmospheric Cerenkov technique to 7-ray astronomy are reviewed here. These include new methods of signal to noise enhancement and the increasing diversity of stellar systems positively identified as Very High
Bradbury, S.M, Bradbury, Stella Marie
core
Microwave Kinetic Inductance Detectors [PDF]
, 2005 Low temperature detectors have been a subject of intense interest to the scientific community over the last decade. These detectors work at very low temperatures, often well below 1 Kelvin, to minimize the noise in the measurement of photons.
Mazin, Benjamin A.
core +1 more source
An edge-on energy-resolved X-ray semiconductor detector
, 2021 The hyperspectral X-ray imaging has long been sought in various fields from material analysis to medical diagnosis. Here we propose a semiconductor detector structure to realize multi-energy imaging at potentially low cost.
Yang, C, Yan, T, Cui, X
core +1 more source
Semiconductor X-Ray Detectors [PDF]
Microscopy Today, 1998 Abstract Detection of characteristic x-rays is a fascinating and challenging subject. From its early beginnings with gas proportional counters it has evolved, like many branches of technology, into the use of a variety of semiconductors.
openaire +1 more source
, 2004 This chapter contains sections titled: Semiconductor Detectors for (Imaging) X‐ray Spectroscopy Gas Proportional Scintillation Counters for X‐ray Spectrometry Superconducting Tunnel Junctions Cryogenic Microcalorimeters Position Sensitive Semiconductor ...
P. Lechner +21 more
core +1 more source
Quasi-2D gallium oxide X-ray detector
Communications MaterialsX-rays, characterized by their short wavelength and high penetrating power, are indispensable across numerous fields. Current X-ray detection relies heavily on amorphous selenium (a-Se) and medium bandgap semiconductors (e.g., Si, CdTe, CZT), which often
Ruo-fan Li +6 more
doaj +1 more source
Pixels detectors and silicon X-rays detectors [PDF]
Le Journal de Physique IV, 1994 Silicon pixel detectors are beginning to be used in large particle physics experiments. The hybrid technique (detector and electronics on two separate wafers) allows large surfaces to be built. For ATLAS at LHC it is proposed to cover areas of more than 1 m2 with 5000 to 10000 pixels/cm2.
openaire +2 more sources
Phase contrast imaging with a laboratory-based microfocus X-ray source [PDF]
, 2007 This project looks at the design of an in-line X-ray phase contrast imaging system, based around the Bede Microsource®, on a suitable scale for imaging small pathological samples. The system is applied to two test objects to assess feasibility of its use
Kelly, Kathryn L, Kelly, Kathryn L.
core
MOS CCDs for the wide field imager on the XEUS spacecraft
, 2005 In recent years the XEUS mission concept has evolved and has been the subject of several industrial studies. The mission concept has now matured to the point that it could be proposed for a Phase A study and subsequent flight programme.
Hutchinson, I +17 more
core +1 more source