翻訳と辞書 Words near each other ・ Neutron detection ・ Neutron diffraction ・ Neutron economy ・ Neutron electric dipole moment ・ Neutron emission ・ Neutron flux ・ Neutron generator ・ Neutron howitzer ・ Neutron imaging ・ Neutron interferometer ・ Neutron magnetic moment ・ Neutron Man ・ Neutron microscope ・ Neutron moderator ・ Neutron moisture gauge ・ Neutron monitor ・ Neutron number ・ Neutron poison ・ Neutron probe ・ Neutron radiation ・ Neutron reflectometry ・ Neutron reflector ・ Neutron research facility ・ Neutron scanner ・ Neutron scattering ・ Neutron Science Laboratory ・ Neutron source ・ Neutron spectroscopy ・ Neutron spin echo ・ Neutron star Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Neutron monitor ： ウィキペディア英語版 Neutron monitor A neutron monitor is a ground-based detector designed to measure the number of high-energy charged particles striking the Earth's atmosphere from outer space. For historical reasons the incoming particles are called "cosmic rays", but in fact they are particles, predominantly protons and Helium nuclei. Most of the time, a neutron monitor records galactic cosmic rays and their variation with the 11-year sunspot cycle and 22-year magnetic cycle. Occasionally the Sun emits cosmic rays of sufficient energy and intensity to raise radiation levels on Earth's surface to the degree that they are readily detected by neutron monitors. They are termed "ground level enhancements" (GLE). The neutron monitor was invented by University of Chicago Professor John A. Simpson in 1948. The "18-tube" NM64 monitor, which today is the international standard, is a large instrument weighing about 36 tons. ==How it works== 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「Neutron monitor」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.