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Showing papers by "John F. Cooper published in 2017"


Journal ArticleDOI
TL;DR: A review of recent areas of research covering the origin of SEPs from coronal mass ejections low in the corona, propagation of events through the solar system during the anomalously weak solar cycle 24 and important examples of radiation interactions for Earth, other planets and airless bodies such as the Moon is provided in this article.
Abstract: Particle radiation has significant effects for astronauts, satellites and planetary bodies throughout the Solar System. Acute space radiation hazards pose risks to human and robotic exploration. This radiation also naturally weathers the exposed surface regolith of the Moon, the two moons of Mars, and other airless bodies, and contributes to chemical evolution of planetary atmospheres at Earth, Mars, Venus, Titan, and Pluto. We provide a select review of recent areas of research covering the origin of SEPs from coronal mass ejections low in the corona, propagation of events through the solar system during the anomalously weak solar cycle 24 and important examples of radiation interactions for Earth, other planets and airless bodies such as the Moon.

22 citations


Journal ArticleDOI
TL;DR: In this paper, an experimental scheme for mesoscopic collective steady-state spin synchronization with ion-trap systems is proposed, where the synchronization in the primary species of ions is mediated by the dissipation of a normal vibrational mode induced by sympathetic cooling with the secondary species of ion.
Abstract: Using analogies from cavity steady-state superradiance, an experimental scheme for mesoscopic collective steady-state spin synchronization is proposed with ion-trap systems, where the synchronization in the primary species of ions is mediated by the dissipation of a normal vibrational mode induced by sympathetic cooling with the secondary species of ions.

19 citations