Title :
Generation and focusing of intense light ion beams from pinched-electron beam diodes
Author :
Cooperstein, G. ; Goldstein, Shyke A. ; Mosher, D. ; Oliphant, F. W. ; Sandel, F. L. ; Stephanakis, S. J. ; Young, F. C.
Author_Institution :
Naval Research Laboratory, Washington, D. C. 20375, USA
Abstract :
Protons and deuterons produced in a pinch reflex diode are magnetically focused by the self-magnetic field of the ion current in the diode vacuum region and then focused ballistically in a gas filled drift region. With a flat diode geometry, peak ion powers approaching 1 TW (700 kA at 1.3 MV) have been produced corresponding to a 2/3 conversion efficiency of peak diode current to ion current. Ion beams self-focus 20–25 cm from the anode to provide peak current densities up to 50 kA/cm2 within an 8 cm2 area. With a curved diode geometry, peak ion current densities approaching 200 kA/cm2 have been produced 8–10 cm from the anode apex over a 1 cm2 area.
Keywords :
Acceleration; Anodes; Atmospheric measurements; Cathodes; Current measurement; Focusing; Ions;
Conference_Titel :
High-Power Electron and Ion Beam Research & Technology, 1979 3rd International Topical Conference on
Conference_Location :
Novosibirsk, USSR
