Experimental investigation of a 1 kA/cm{sup 2} sheet beam plasma cathode electron gun

Journal Article · Thu Jan 15 00:00:00 EST 2015 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4906592· OSTI ID:22392313

Kumar, Niraj; Narayan Pal, Udit; Prajesh, Rahul; Prakash, Ram ^[1]; Kumar Pal, Dharmendra ^[1]

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1. CSIR-Central Electronics Engineering Research Institute (CSIR-CEERI), Pilani, Rajasthan 333031 (India)

In this paper, a cold cathode based sheet-beam plasma cathode electron gun is reported with achieved sheet-beam current density ∼1 kA/cm{sup 2} from pseudospark based argon plasma for pulse length of ∼200 ns in a single shot experiment. For the qualitative assessment of the sheet-beam, an arrangement of three isolated metallic-sheets is proposed. The actual shape and size of the sheet-electron-beam are obtained through a non-conventional method by proposing a dielectric charging technique and scanning electron microscope based imaging. As distinct from the earlier developed sheet beam sources, the generated sheet-beam has been propagated more than 190 mm distance in a drift space region maintaining sheet structure without assistance of any external magnetic field.

• OSTI ID: 22392313
• Journal Information: Review of Scientific Instruments, Vol. 86, Issue 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ARGON
BEAM CURRENTS
CATHODES
DIELECTRIC MATERIALS
ELECTRON BEAMS
ELECTRON GUNS
MAGNETIC FIELDS
PLASMA
SCANNING ELECTRON MICROSCOPY