Composite Electron Beam Vacuum Tube

An electron beam vacuum tube assembly for a Febetron 705 electron accelerator, the electron beam vacuum tube assembly comprising:

• a composite insulator tube made of Rexolite® 1422;
• an anode assembly detachably connect to a first end of the composite insulator tube;
• and
• a cathode assembly detachably connected at a second end of the composite insulator tube, wherein the composite insulator tube provides electrical isolation between the anode assembly and cathode assembly.

An electron beam vacuum tube assembly for a Febetron 705 electron accelerator, the electron beam vacuum tube assembly comprising:

• a composite insulator tube made of Rexolite® 1422;
• an anode assembly detachably connect to a first end of the composite insulator tube, wherein the anode assembly comprises an O-ring electron beam exit window frame, a titanium window, a vacuum port assembly, and an anode interface plate;
• and
• a cathode assembly detachably connected at a second end of the composite insulator tube via an electrode holder, wherein the cathode assembly comprises an adjustable cathode rod configured to adjust the anode/cathode gap, a changeable cathode tip, and a coupler;
• wherein the composite insulator tube provides electrical isolation of up to 2.5 MeV between the anode assembly and cathode assembly, and wherein the composite insulator tube maintains a ˜1e−6 torr ultra-high vacuum environment inside the electron beam vacuum tube assembly.