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09:56 Jan 6, 2010
English to Arabic translations [PRO]
Tech/Engineering - Nuclear Eng/Sci
Additional field(s): Physics
English term or phrase: spallation
Definition from European Nuclear Society:
Nuclear conversion during which an energy-rich bombardment particle knocks out numerous individual particles (protons, neutrons) from the target nucleus. Observed initially as an effect of cosmic radiation.

Example sentence(s):
  • There are many distinct methods of producing sufficiently strong neutron beams for science. Because of their flux (see below), that is higher by several orders of magnitude, nuclear reactors and spallation sources are nowadays preferred to radioisotope, photon or accelerator sources. AUSTRON
  • Finally, the pulsed proton beam will be directed onto a liquid mercury target, where 60-Hz pulses of neutrons will be created through spallation reactions of the protons with the mercury nuclei. Spallation Neutron Source
  • With the world's highest flux reactor-based neutron source (the High Flux Isotope Reactor) and the world's most intense pulsed accelerator-based neutron source (the Spallation Neutron Source), ORNL provides neutron scattering capabilities unavailable anywhere else in the world. Oak Ridge National Laboratory
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Summary of translations provided
elsayed fayed


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Definition from wapedi:
التشظي (Spallation)

Example sentence(s):
  • للألومنيوم تسعة نظائر يتراوح عددها الكتلي بين 23 و 30. يوجد في الطبيعة نظيرين فقط هما Al27 (نظير ثابت) وله وفرة طبيعية مقدارها 99.9%، وAl26 (مشع عمر النصف له 7.2 × 105سنة). ينتج النظير Al26 من الأرغون في الغلاف الجوي بواسطة التشظي (Spallation) الذي تسببه بروتونات الأشعة الكونية. تستخدم نظائر الألومنيوم في التطبيقات العملية لتحديد تاريخ الترسبات البحرية، وعقيدات المنغنيز، والثلج الجليدي والكوارتز في القصف الصخري والنيزكي - wapedia  
  • التشظِّي spallation (من فعل to spall الإنكليزي الذي يعني "تفجَّر"): ظاهرة تحدث لدى تفاعل نووي، ناجمة عن تفجُّر نواة ذرة إلى قُسيمات عديدة بتأثير قصفها جسيميًّا بقُسيم عالي الطاقة. - معابر  
elsayed fayed
Local time: 15:29
Native speaker of: Arabic
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