X-ray position detection at 22μm FWHM with a gas proportional chamber Measurements have been made of x-ray position resolution in proportional chambers using xenon/CO2, argon/ CO2, and hydrocarbon gases. The use of several at... Smith,C G.,Fischer,... - 《Nuclear Science IEEE Transactions...
the performance of a GBPC-CT setup depends on numerous factors. Next to the choice of X-ray source and detector, the design of the GBPC-CT setup with position of gratings and sample have to be optimized [56,119
X-ray computed tomography (CT) is a commercially established modality for imaging large objects like passenger luggage. CT can provide the density and the effective atomic number, which is not always sufficient to identify threats like explosives and nar
A short view of development of both the EDXRF using a capillary X-ray lens and the new PSXS is given in this paper. 展开 关键词: X-ray Polycapillary X-ray optics MXRF Position sensitive X-ray spectrometry DOI: 10.1016/S0039-9140(00)00387-8 ...
A curved image sensor on plastic foil has been developed for cone beam computed tomography (CBCT) X-ray imaging. The image sensor of about 6 × 8 cm2 size has been built on a thin polyimide foil with an indium gallium zinc oxide (IGZO) backplane
Since the discovery of X-rays over a century ago the techniques applied to the engineering of X-ray sources have remained relatively unchanged. From the inception of thermionic electron sources, which, due to simplicity of fabrication, remain central to almost all X-ray applications, there have ...
摘要: PURPOSE: To stably position/set X-ray beams at a constant initial position at all times to a liquid sample in a θ-θ scan type X-ray apparatus of a model rotating both an X-ray source and an X-ray counter about the sample....
ray beam by placing the light-field sensor 14 mm from the X-ray source (Fig.4b). The measured wavefront curvature agrees well with analytical calculations; the maximum angle measured by the light-field sensor is 40.6°. We also mapped the visible light wavefronts in the image plane ...
(effective blackbody temperature ofkT = 45 ± 3 eV or 522 ± 35 kK; Fig.1). Using the 1″-accurate XMM X-ray position, we identify [HP99] 159 with a 16-mag optical object at right ascension (RA) (2000.0) = 05 h 20 min 15.50 s, ...
Total reflection X-ray fluorescence spectrometry for trace determination of iron and some additional elements in biological samplesResearch Paper Open access Published: 26 April 2020 Volume 412, pages 6419–6429, (2020) Cite this article Download PDF You have full access to this open access article...