DBpedia 2015-10

Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/X-ray> ?p ?o }

Showing triples 1 to 100 of ±569 with 100 triples per page.

X-ray abstract "X-radiation (composed of X-rays) is a form of electromagnetic radiation. Most X-rays have a wavelength ranging from 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. 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.Thus, gamma-rays generated for medical and industrial uses, for example radiotherapy, in the ranges of 6–20 MeV, can in this context also be referred to as X-rays.".
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 wikiPageLength "72793".
X-ray wikiPageOutDegree "374".
X-ray wikiPageRevisionID "679118167".
X-ray wikiPageWikiLink Abdomen.
X-ray wikiPageWikiLink Abdominal_x-ray.
X-ray wikiPageWikiLink Abnormal_reflection.
X-ray wikiPageWikiLink Absorbed_dose.
X-ray wikiPageWikiLink Absorption_(electromagnetic_radiation).
X-ray wikiPageWikiLink Absorption_coefficient.
X-ray wikiPageWikiLink Absorption_edge.
X-ray wikiPageWikiLink Absorption_edges.
X-ray wikiPageWikiLink Acute_radiation_syndrome.
X-ray wikiPageWikiLink Airport_security.
X-ray wikiPageWikiLink Aluminium.
X-ray wikiPageWikiLink Amputation.
X-ray wikiPageWikiLink Angiography.
X-ray wikiPageWikiLink Angstrom.
X-ray wikiPageWikiLink Anode.
X-ray wikiPageWikiLink Ascites.
X-ray wikiPageWikiLink Assassination.
X-ray wikiPageWikiLink Assassination_of_William_McKinley.
X-ray wikiPageWikiLink Astronomy.
X-ray wikiPageWikiLink Atom.
X-ray wikiPageWikiLink Atomic_nucleus.
X-ray wikiPageWikiLink Atomic_number.
X-ray wikiPageWikiLink Attenuation_coefficient.
X-ray wikiPageWikiLink Attenuation_length.
X-ray wikiPageWikiLink Auger_effect.
X-ray wikiPageWikiLink Auger_electron.
X-ray wikiPageWikiLink Auger_electron_spectroscopy.
X-ray wikiPageWikiLink Background_radiation.
X-ray wikiPageWikiLink Backscatter_X-ray.
X-ray wikiPageWikiLink Birmingham.
X-ray wikiPageWikiLink Birmingham,_England.
X-ray wikiPageWikiLink Black_hole.
X-ray wikiPageWikiLink Bone.
X-ray wikiPageWikiLink Border_control.
X-ray wikiPageWikiLink Bowel_obstruction.
X-ray wikiPageWikiLink Bremsstrahlung.
X-ray wikiPageWikiLink CT_scan.
X-ray wikiPageWikiLink Calcium.
X-ray wikiPageWikiLink Calcium_tungstate.
X-ray wikiPageWikiLink Cancer.
X-ray wikiPageWikiLink Carcinogen.
X-ray wikiPageWikiLink Cardiovascular_system.
X-ray wikiPageWikiLink Category:Electromagnetic_spectrum.
X-ray wikiPageWikiLink Category:IARC_Group_1_carcinogens.
X-ray wikiPageWikiLink Category:Medical_physics.
X-ray wikiPageWikiLink Category:Radiation.
X-ray wikiPageWikiLink Category:Radiography.
X-ray wikiPageWikiLink Category:Wilhelm_Röntgen.
X-ray wikiPageWikiLink Category:X-rays.
X-ray wikiPageWikiLink Cathode.
X-ray wikiPageWikiLink Cathode_ray.
X-ray wikiPageWikiLink Cell_(biology).
X-ray wikiPageWikiLink Chandra_X-ray_Observatory.
X-ray wikiPageWikiLink Characteristic_X-ray.
X-ray wikiPageWikiLink Charge-coupled_device.
X-ray wikiPageWikiLink Charles_Barkla.
X-ray wikiPageWikiLink Charles_Glover_Barkla.
X-ray wikiPageWikiLink Chest_radiograph.
X-ray wikiPageWikiLink Circulatory_system.
X-ray wikiPageWikiLink Clarence_Madison_Dally.
X-ray wikiPageWikiLink Cobalt.
X-ray wikiPageWikiLink Cold_cathode.
X-ray wikiPageWikiLink Collimated_light.
X-ray wikiPageWikiLink Collimation.
X-ray wikiPageWikiLink Compton_scattering.
X-ray wikiPageWikiLink Computed_tomography.
X-ray wikiPageWikiLink Conservation_of_energy.
X-ray wikiPageWikiLink Conservation_of_momentum.
X-ray wikiPageWikiLink Continuous_spectrum.
X-ray wikiPageWikiLink Contrast_(vision).
X-ray wikiPageWikiLink Copper.
X-ray wikiPageWikiLink Coronary_circulation.
X-ray wikiPageWikiLink Coulomb.
X-ray wikiPageWikiLink Covalent_bond.
X-ray wikiPageWikiLink Crookes_tube.
X-ray wikiPageWikiLink Cross_section_(physics).
X-ray wikiPageWikiLink Crystal.
X-ray wikiPageWikiLink Czech_Technical_University_in_Prague.
X-ray wikiPageWikiLink DNA.
X-ray wikiPageWikiLink Dartmouth_College.
X-ray wikiPageWikiLink Death_ray.
X-ray wikiPageWikiLink Dental_caries.