Final Technical Report- Back-gate Field Emission-based Cathode RF Electron Gun

McGuire, Gary ; Martin, Allen ; Noonan, John

关键词: electron gun;    field emission;    RF gun;    back-gate;    cold cathode;    electron beam;   

DOI  :  10.2172/991655
RP-ID  :  DOE/SC0002586-1
PID  :  OSTI ID: 991655

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

The objective was to complete the design of an electron gun which utilizes a radio frequency (RF) power source to apply a voltage to a field emission (FE) cathode, a so called cold cathode, in order to produce an electron beam. The concept of the RF electron gun was originally conceived at Argonne National Laboratory but never reduced to practice. The research allowed the completion of the design based upon the integration of the FE electron source. Compared to other electron guns, the RF gun is very compact, less than one third the size of other comparable guns, and produces a high energy (to several MeV), high quality, high power electron beam with a long focal length with high repetition rates. The resultant electron gun may be used in welding, materials processing, analytical equipment and waste treatment.