Abstract
The characteristics of an orbiting molecular shield ultrahigh vacuum facility are described and some examples of potential applications are discussed. Published results of a kinetic theory analysis are given. Densities within the shield of less than 10 3 molecules/cm 3 can be obtained allowing high purity materials processing experiments to be performed in orbit under the simultaneous conditions of ultrahigh vacuum and microgravity. Two specific experiments are discussed: the production of ultrapure materials by the electrotransport technique developed at ERDA's Ames Laboratory, Iowa State University, and the vapor deposition and space preparation of silicon solar cells.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
