英和和英

名詞

presheath ‎(複数形 presheaths)

1. A region in advance of a sheath
   • 2015, Benjamin T. Yee, Brett Scheiner, Scott D. Baalrud, Edward V. Barnat, Matthew M. Hopkins, “Electron Sheaths: The Outsized Influence of Positive Boundaries on Plasmas”, in arXiv^[1]:

     Instead, a long presheath region extends into the plasma where electrons are accelerated via a pressure gradient to a flow speed exceeding the electron thermal speed at the sheath edge.