Apparatus for Electron Irradiation Studies at Low Temperatures

Publisher Website
Google Scholar
Abstract
To pursue accurate quantitative studies of radiation effects in crystals, it is necessary to adopt precise experimental techniques for controlling the bombarding electrons and for cooling specimens to very low temperatures. With regards to the irradiating electron beam, measurements have been made to determine some of the factors which influence the electron flux density over the irradiated area, and a description is given of a system which insures precise alignment of the beam with respect to the specimens. A sample holder is described which provides good thermal contact and good electrical isolation between specimen and specimen holder at low temperatures. The method used for regulating the temperature of the sample holder depends upon adjusting the rate and the amount of helium vapor flow through the holder and data that indicate how these two adjustments govern the resultant temperature are presented.

This publication has 6 references indexed in Scilit: