effects, this fine structure is generally ignored in general-purpose compilations of x-ray attenuation coefficients for medical and shielding applications. However, EXAFS (x-ray absorption fine structure) is a widely used and important analytical tool. i Fluorescence (characteristic) x rays In ...
An photon (energy) identifying radiation imaging device, for imaging x-ray, gamma ray and charged radiation in medical, dental and industrial applications. The imaging device includes a detector substrate and a readout substrate. The detector substrate has a plurality of detector pixels and the ...
Although dual-energy X-ray absorptiometry (DXA) is widely used in clinical research as a means of quantifying body composition, there remains at present little published information that reviews the method's underlying physical basis. Because a clear understanding of DXA physical concepts is integral...
Experimental Study of the Photon Energy Spectrum of Primary Diagnostic X-Rays The photon energy spectra of primary diagnostic X-ray beams have been studied experimentally over the kilovoltage region 45-105 kvp using scintillation spe... ER Epp,H Weiss - 《Physics in Medicine & Biology》 被引量...
Energy dispersive X-ray (EDX) analysis is a method of elemental detection via the collection of characteristic X-rays induced by electron beam radiation (Fig. 1). From: Methods in Cell Biology, 2021 About this pageSet alert Also in subject areas: Nursing and Health Professions Chemistry Bioche...
The resulting X-ray spectrum at the detector had a (broad) peak around 240 keV, the photon flux density was sufficient to record tomographic scans in less than 0.5 h. In order to further increase the contrast, a propagation distance between sample and detector of 13 m was chosen: ...
Previously, the highest energy ever observed for a gamma-ray photon was 75 TeV, which was detected by the HEGRA Cherenkov telescope in Germany. "Before this discovery, many scientists believed that photons could not be accelerated to energy higher than 100 TeV," said Huang Jing, a researcher ...
Repeated measurements of bone mineral density (BMD) by dual-energy x-ray absorptiometry (DEXA) reliably indicate changes in the bone mineral content (BMC) of the lumbar spine and proximal femur, but its applicability to other sites has not been properly determined. The in-vivo day-to-day prec...
摘要: The Photon Radiosurgery System (PRS), developed by the Photoelectron Corporation in Lexington, Massachusetts, produces low-energy x-rays from the tip of a needle-like probe at a high dose-rate. Thi...DOI: https://doi.org/10.1081/CNV-120018226 ...
. Transmission electron microscopic (TEM) imaging shows that the as-synthesized nanoparticles exhibit spherical morphology with an average diameter of 28.7 nm (Fig.1cand Supplementary Fig.3). X-ray diffraction confirms the hexagonal phase of the nanocrystals (Supplementary Fig.4). Compositional ...