Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Dember_effect> ?p ?o. }
Showing items 1 to 27 of
27
with 100 items per page.
- Dember_effect abstract "In physics, the Dember effect is when the electron current from a cathode subjected to both illumination and a simultaneous electron bombardment is greater than the sum of the photoelectric current and the secondary emission current .Discovered by Harry L. Dember (1882–1943) in 1925, this effect is due to the sum of the excitations of an electron by two means: photonic illumination and electron bombardment (i.e. the sum of the two excitations extracts the electron). In Dember’s initial study, he referred only to metals; however, more complex materials have been analyzed since then.The photoelectric effect due to the illumination of the metallic surface extracts electrons (if the energy of the photon is greater than the extraction work) and excites the electrons which the photons don’t have the energy to extract.In a similar process, the electron bombardment of the metal both extracts and excites electrons inside the metal.If one considers a constant and increases , it can be observed that has a maximum of about 150 times .On the other hand, considering a constant and increasing the intensity of the illumination the , supplementary current, tends to saturate. This is due to the usage in the photoelectric effect of all the electrons excited (sufficiently) by the primary electrons of .The Dember effect has no relation to the financial market's "December effect". See January effect.".
- Dember_effect wikiPageExternalLink Harry_Dember.
- Dember_effect wikiPageID "5452697".
- Dember_effect wikiPageRevisionID "589357018".
- Dember_effect hasPhotoCollection Dember_effect.
- Dember_effect subject Category:Electrical_phenomena.
- Dember_effect type ElectricalPhenomena.
- Dember_effect type ElectricalPhenomenon111449002.
- Dember_effect type NaturalPhenomenon111408559.
- Dember_effect type Phenomenon100034213.
- Dember_effect type PhysicalEntity100001930.
- Dember_effect type PhysicalPhenomenon111419404.
- Dember_effect type Process100029677.
- Dember_effect comment "In physics, the Dember effect is when the electron current from a cathode subjected to both illumination and a simultaneous electron bombardment is greater than the sum of the photoelectric current and the secondary emission current .Discovered by Harry L. Dember (1882–1943) in 1925, this effect is due to the sum of the excitations of an electron by two means: photonic illumination and electron bombardment (i.e. the sum of the two excitations extracts the electron).".
- Dember_effect label "Dember effect".
- Dember_effect label "Dember-Effekt".
- Dember_effect label "Efeito Dember".
- Dember_effect label "Эффект Дембера".
- Dember_effect label "登伯效应".
- Dember_effect sameAs Dember-Effekt.
- Dember_effect sameAs Efeito_Dember.
- Dember_effect sameAs m.0dmk03.
- Dember_effect sameAs Q934441.
- Dember_effect sameAs Q934441.
- Dember_effect sameAs Dember_effect.
- Dember_effect wasDerivedFrom Dember_effect?oldid=589357018.
- Dember_effect isPrimaryTopicOf Dember_effect.