Access Restriction

Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Using Nea Cathode Rf Gun ♦ Rf Gun ♦ Linear Collider ♦ Cryogenic Temperature ♦ Residual Gas ♦ Energy Deposition ♦ Polarized Beam ♦ Electron Source ♦ Nea Cathode Pose Concern ♦ High Brightness Beam ♦ Ion Bombardment ♦ Vacuum Pressure
Abstract RF guns have been proven to deliver high brightness beams and therefore appear attractive as electron source for a linear collider. Only so far no polarized beams have been produced. To create a polarized electron beam GaAs NEA cathodes are used. Operating rf guns with a NEA cathode poses concerns in three areas, oxidation by residual gas, ion bombardment, and electron bombardment. In this paper we report about an attempt to reduce the vacuum pressure inside the gun by cooling it to cryogenic temperatures. Furthermore the energy deposition by ions will be quantified.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article