Design Study of the Vacuum System of the Daresbury X-8 Experimental Line. Part 1: The Front-End System

摘要

This paper deals with the front-end vacuum system of the X 8 beam line at the Daresbury synchrotron radiation source. The vacuum system is represented by a matrix to allow calculation of pressure profiles for many sets of pumping-speed and desorption parameters. It is shown that for a mass spectrum consisting mainly of CO and N sub 2 it is possible to operate the machine side of the front-end system in the 10 exp -10 Torr pressure region and proof is given that the two conductance-stage can provide a pressure difference of 1:100. (Atomindex citation 13:714780)