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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Large Apparatus studying Grand Unification and Neutrino Astrophysics ： ウィキペディア英語版 Large Apparatus studying Grand Unification and Neutrino Astrophysics Large Apparatus studying Grand Unification and Neutrino Astrophysics or LAGUNA is a European project aimed to develop the next-generation, very large volume underground neutrino observatory. The detector should be much bigger and more sensitive than any previous detector, and make new discoveries in the field of particle and astroparticle physics. The project involves 21 European institutions in 10 European countries, and brings together over 100 scientists. As of 2011, the project is assessing the feasibility of developing the observatory-infrastructure and the observatory particle detectors themselves, as well as looking for deployment site (7 candidates) in Europe. There have also been propositions of merging the project with similar international projects, like DUSEL.〔(Large Underground Observatory for Proton Decay, Neutrino Astrophysics and CP-violation in the Lepton Sector )〕 == Detectors == There are three possible detector technologies studied, the MEMPHYS, GLACIER and LENA detectors, MEMPHYS being a water-based detector, GLACIER being liquid argon and LENA liquid scintillator-based. All the detectors work by observing the faint light and electric charge produced when a neutrino particle interacts with a nucleus of the liquid inside the detector. The detectors will be based deep underground (even 1.4 km deep) to filter the noise that is developed by the atmospheric and cosmic particles that bombard everything at the surface of the Earth. These noise particles do not penetrate the Earth at that depth, but the neutrinos that interact only weakly with normal matter do. The detectors will be huge in size, with the liquid target mass being of order 100 000 – 1 000 000 tons. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Large Apparatus studying Grand Unification and Neutrino Astrophysics」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.