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The Homestake experiment (sometimes referred to as the Davis experiment or Solar Neutrino Experiment and in original literature called Brookhaven Solar Neutrino Experiment or Brookhaven 37Cl (Chlorine) Experiment ) was an experiment headed by astrophysicists Raymond Davis, Jr. and John N. Bahcall in the late 1960s. Its purpose was to collect and count neutrinos emitted by nuclear fusion taking place in the Sun. Bahcall performed the theoretical calculations and Davis designed the experiment. After Bahcall calculated the rate at which the detector should capture neutrinos, Davis's experiment turned up only one third of this figure. The experiment was the first to successfully detect and count solar neutrinos, and the discrepancy in results created the solar neutrino problem. The experiment

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  • تجربة هومستاك (ar)
  • Homestake-Experiment (de)
  • Homestake experiment (en)
  • Expérience Homestake (fr)
  • Esperimento Homestake (it)
rdfs:comment
  • Das Homestake-Experiment ist ein Pionier-Experiment in der Neutrinophysik in der Homestake-Goldmine nahe Rapid City in South Dakota. Es wurde in den 1960er Jahren unter Leitung von Raymond Davis Jr. aufgebaut und war von 1970 bis 1994 in Betrieb. (de)
  • تجربة هومستاك أو تجربة ديفيز في الفيزياء (بالإنجليزية: Homestake experiment أو Davis experiment) هي تجربة علمية قام بها رايموند ديفيز يونيور وجون باهكال في أواخر الستينيات من القرن الماضي. وكان الغرض منها قياس نيوترينات ناتجة من الاندماج النووي الذي يجري في الشمس. قام باهكال بإجراء الحسابات النظرية وقام ديفيز بتصميم التجربة. وبعدما حصل باهكال على نتيجة حسابه لمعدل إصابة النيوترونات للعداد، فقد أتت نتيجة ديفيز بنحو ثلث العدد المحسوب نظريا. وكانت تلك التجربة هي التجربة الأولى لعد النيوترينات القادمة من الشمس. وأوصحت التجربة بما سمي في الأوساط العلمية مشكلة نيورينو الشمس. (ar)
  • The Homestake experiment (sometimes referred to as the Davis experiment or Solar Neutrino Experiment and in original literature called Brookhaven Solar Neutrino Experiment or Brookhaven 37Cl (Chlorine) Experiment ) was an experiment headed by astrophysicists Raymond Davis, Jr. and John N. Bahcall in the late 1960s. Its purpose was to collect and count neutrinos emitted by nuclear fusion taking place in the Sun. Bahcall performed the theoretical calculations and Davis designed the experiment. After Bahcall calculated the rate at which the detector should capture neutrinos, Davis's experiment turned up only one third of this figure. The experiment was the first to successfully detect and count solar neutrinos, and the discrepancy in results created the solar neutrino problem. The experiment (en)
  • L'expérience Homestake (appelée quelquefois expérience de Davis) était une expérience conduite par les astrophysiciens Raymond Davis, Jr. et John Bahcall à la fin des années 1960. Son objectif était de collecter et de compter les neutrinos émis par la fusion nucléaire qui a lieu au sein du Soleil. Bahcall fit les calculs théoriques et Davis conçut l'expérience. Après que Bahcall eut calculé le taux de capture des neutrinos par le détecteur, l'expérience de Davis ne mesura qu'environ un tiers de ce taux. L'expérience fut la première à détecter et à compter avec succès les neutrinos solaires et l'incohérence des résultats fut à l'origine du problème des neutrinos solaires. L'expérience se déroula en continu de 1970 jusqu'en 1994. L'université de Pennsylvanie pris le relais en 1984. L'incohér (fr)
  • L'esperimento Homestake (a volte chiamato esperimento di Davis mentre nella letteratura originale esperimento dei neutrini solari di Brookhaven o esperimento al 37Cl (cloro) di Brookhaven) è stato un esperimento guidato dagli astrofisici Raymond Davis Jr. e John N. Bahcall nei tardi anni 1960. Il suo scopo era di rilevare e contare i neutrini emessi dalla fusione nucleare all'interno del Sole. Bahcall effettuò i calcoli teorici e Davis progettò l'esperimento. Dopo che Bahcall calcolò il tasso al quale il rivelatore avrebbe dovuto catturare i neutrini, ci si rese conto che l'esperimento di Davis aveva rilevato un terzo di quelli previsti. L'esperimento fu il primo ad essere riuscito a rilevare e contare i , ma la discrepanza tra teoria e risultati creò il problema dei neutrini solari. L'esp (it)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Atomic_Energy_Commission's_Brookhaven_National_Laboratory_solar_neutrino_detector._c._1972_(diagram).jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/U.S._Department_of_Energy_-_Science_-_390_002_007_(9952118384).jpg
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  • 44.35333333333333 -103.74416666666667
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  • تجربة هومستاك أو تجربة ديفيز في الفيزياء (بالإنجليزية: Homestake experiment أو Davis experiment) هي تجربة علمية قام بها رايموند ديفيز يونيور وجون باهكال في أواخر الستينيات من القرن الماضي. وكان الغرض منها قياس نيوترينات ناتجة من الاندماج النووي الذي يجري في الشمس. قام باهكال بإجراء الحسابات النظرية وقام ديفيز بتصميم التجربة. وبعدما حصل باهكال على نتيجة حسابه لمعدل إصابة النيوترونات للعداد، فقد أتت نتيجة ديفيز بنحو ثلث العدد المحسوب نظريا. وكانت تلك التجربة هي التجربة الأولى لعد النيوترينات القادمة من الشمس. وأوصحت التجربة بما سمي في الأوساط العلمية مشكلة نيورينو الشمس. وعملت التجربة مستمرا بين عام 1970 حتى 1994. وتسلمتها جامعة بنسيلفينيا عام 1984. وأعزي عدم التوافق بين ما حسبته النظرية ومعدل الكشف عن النيوترينوات فيما بعد إلى تذبذب "نكهة" النيوترينو. (ar)
  • Das Homestake-Experiment ist ein Pionier-Experiment in der Neutrinophysik in der Homestake-Goldmine nahe Rapid City in South Dakota. Es wurde in den 1960er Jahren unter Leitung von Raymond Davis Jr. aufgebaut und war von 1970 bis 1994 in Betrieb. (de)
  • The Homestake experiment (sometimes referred to as the Davis experiment or Solar Neutrino Experiment and in original literature called Brookhaven Solar Neutrino Experiment or Brookhaven 37Cl (Chlorine) Experiment ) was an experiment headed by astrophysicists Raymond Davis, Jr. and John N. Bahcall in the late 1960s. Its purpose was to collect and count neutrinos emitted by nuclear fusion taking place in the Sun. Bahcall performed the theoretical calculations and Davis designed the experiment. After Bahcall calculated the rate at which the detector should capture neutrinos, Davis's experiment turned up only one third of this figure. The experiment was the first to successfully detect and count solar neutrinos, and the discrepancy in results created the solar neutrino problem. The experiment operated continuously from 1970 until 1994. The University of Pennsylvania took it over in 1984. The discrepancy between the predicted and measured rates of neutrino detection was later found to be due to neutrino "flavour" oscillations. (en)
  • L'expérience Homestake (appelée quelquefois expérience de Davis) était une expérience conduite par les astrophysiciens Raymond Davis, Jr. et John Bahcall à la fin des années 1960. Son objectif était de collecter et de compter les neutrinos émis par la fusion nucléaire qui a lieu au sein du Soleil. Bahcall fit les calculs théoriques et Davis conçut l'expérience. Après que Bahcall eut calculé le taux de capture des neutrinos par le détecteur, l'expérience de Davis ne mesura qu'environ un tiers de ce taux. L'expérience fut la première à détecter et à compter avec succès les neutrinos solaires et l'incohérence des résultats fut à l'origine du problème des neutrinos solaires. L'expérience se déroula en continu de 1970 jusqu'en 1994. L'université de Pennsylvanie pris le relais en 1984. L'incohérence entre les taux de détection des neutrinos calculés et prédits a été ultérieurement expliquée par l'oscillation des « saveurs » des neutrinos. (fr)
  • L'esperimento Homestake (a volte chiamato esperimento di Davis mentre nella letteratura originale esperimento dei neutrini solari di Brookhaven o esperimento al 37Cl (cloro) di Brookhaven) è stato un esperimento guidato dagli astrofisici Raymond Davis Jr. e John N. Bahcall nei tardi anni 1960. Il suo scopo era di rilevare e contare i neutrini emessi dalla fusione nucleare all'interno del Sole. Bahcall effettuò i calcoli teorici e Davis progettò l'esperimento. Dopo che Bahcall calcolò il tasso al quale il rivelatore avrebbe dovuto catturare i neutrini, ci si rese conto che l'esperimento di Davis aveva rilevato un terzo di quelli previsti. L'esperimento fu il primo ad essere riuscito a rilevare e contare i , ma la discrepanza tra teoria e risultati creò il problema dei neutrini solari. L'esperimento operò ininterrottamente dal 1970 al 1994. L'Università della Pennsylvania prese il controllo nel 1984. Si scoprì successivamente che la discrepanza tra i tassi di rilevazione misurato e previsto fosse dovuta alle oscillazioni di "sapore" del neutrino. (it)
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