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Matches in DBpedia 2014 for { <http://dbpedia.org/resource/X-ray> ?p ?o. }

• X-ray abstract "X-radiation (composed of X-rays) is a form of electromagnetic radiation. Most X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 100 eV to 100 keV. However, much higher-energy X-rays can be generated for medical and industrial uses, for example radiotherapy, which utilizes linear accelerators to generate X-rays in the ranges of 6–20 MeV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. In many languages, X-radiation is referred to with terms meaning Röntgen radiation, after Wilhelm Röntgen, who is usually credited as its discoverer, and who had named it X-radiation to signify an unknown type of radiation. Spelling of X-ray(s) in the English language includes the variants x-ray(s), xray(s) and X ray(s).X-rays with photon energies above 5–10 keV (below 0.2–0.1 nm wavelength) are called hard X-rays, while those with lower energy are called soft X-rays. Due to their penetrating ability hard X-rays are widely used to image the inside of objects, e.g. in medical radiography and airport security. As a result, the term X-ray is metonymically used to refer to a radiographic image produced using this method, in addition to the method itself. Since the wavelengths of hard X-rays are similar to the size of atoms they are also useful for determining crystal structures by X-ray crystallography. By contrast, soft X-rays are easily absorbed in air and the attenuation length of 600 eV (~2 nm) X-rays in water is less than 1 micrometer.There is no universal consensus for a definition distinguishing between X-rays and gamma rays. One common practice is to distinguish between the two types of radiation based on their source: X-rays are emitted by electrons, while gamma rays are emitted by the atomic nucleus. This definition has several problems; other processes also can generate these high energy photons, or sometimes the method of generation is not known. One common alternative is to distinguish X- and gamma radiation on the basis of wavelength (or equivalently, frequency or photon energy), with radiation shorter than some arbitrary wavelength, such as 10−11 m (0.1 Å), defined as gamma radiation.This criterion assigns a photon to an unambiguous category, but is only possible if wavelength is known. (Some measurement techniques do not distinguish between detected wavelengths.) However, these two definitions often coincide since the electromagnetic radiation emitted by X-ray tubes generally has a longer wavelength and lower photon energy than the radiation emitted by radioactive nuclei.Occasionally, one term or the other is used in specific contexts due to historical precedent, based on measurement (detection) technique, or based on their intended use rather than their wavelength or source.".
• X-ray thumbnail X-ray_applications.svg?width=300.
• X-ray wikiPageExternalLink fileview?id=0B89CZuXbiY7mNmQxYmVlNDktNjBiZS00NjcwLTg0ODgtZjc3NWUwOWUxZDg5&hl=tr.
• X-ray wikiPageExternalLink medpix.
• X-ray wikiPageExternalLink whatis.html.
• X-ray wikiPageExternalLink page5.html.
• X-ray wikiPageExternalLink bremindx.htm.
• X-ray wikiPageExternalLink faisceau.
• X-ray wikiPageExternalLink multi-media_video.html?m=4.
• X-ray wikiPageExternalLink xray.jpg.
• X-ray wikiPageExternalLink extraordinary-x-rays.
• X-ray wikiPageExternalLink broken-humerus-xray.htm.
• X-ray wikiPageExternalLink www.x-raysafety.com.
• X-ray wikiPageExternalLink 7.pdf.
• X-ray wikiPageID "34197".
• X-ray wikiPageRevisionID "606227906".
• X-ray expiry "2015-04-07".
• X-ray hasPhotoCollection X-ray.
• X-ray small "yes".
• X-ray subject Category:Electromagnetic_spectrum.
• X-ray subject Category:IARC_Group_1_carcinogens.
• X-ray subject Category:Medical_physics.
• X-ray subject Category:Radiation.
• X-ray subject Category:Radiography.
• X-ray subject Category:X-rays.
• X-ray type Carcinogen114793812.
• X-ray type IARCGroup1Carcinogens.
• X-ray type Matter100020827.
• X-ray type PhysicalEntity100001930.
• X-ray type Substance100020090.
• X-ray comment "X-radiation (composed of X-rays) is a form of electromagnetic radiation. Most X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 100 eV to 100 keV. However, much higher-energy X-rays can be generated for medical and industrial uses, for example radiotherapy, which utilizes linear accelerators to generate X-rays in the ranges of 6–20 MeV.".
• X-ray label "Promieniowanie rentgenowskie".
• X-ray label "Raggi X".
• X-ray label "Raios X".
• X-ray label "Rayon X".
• X-ray label "Rayos X".
• X-ray label "Röntgenstrahlung".
• X-ray label "Röntgenstraling".
• X-ray label "X-ray".
• X-ray label "X射线".
• X-ray label "X線".
• X-ray label "Рентгеновское излучение".
• X-ray label "أشعة سينية".
• X-ray sameAs Rentgenové_záření.
• X-ray sameAs Röntgenstrahlung.
• X-ray sameAs Ακτίνες_Χ.
• X-ray sameAs Rayos_X.
• X-ray sameAs X_izpi.
• X-ray sameAs Rayon_X.
• X-ray sameAs Sinar-X.
• X-ray sameAs Raggi_X.
• X-ray sameAs X線.
• X-ray sameAs 엑스선.
• X-ray sameAs Röntgenstraling.
• X-ray sameAs Promieniowanie_rentgenowskie.
• X-ray sameAs Raios_X.
• X-ray sameAs m.087gx.
• X-ray sameAs Q34777.
• X-ray sameAs Q34777.
• X-ray sameAs X-ray.
• X-ray wasDerivedFrom X-ray?oldid=606227906.
• X-ray depiction X-ray_applications.svg.
• X-ray isPrimaryTopicOf X-ray.