Selective generation and extraction of low emittance electrons from plasmas: A new concept for E-beam cathodes
Conference
·
OSTI ID:5232314
It is shown that hollow cathode discharges can operate in a mode characterized by a two-component electron energy distribution: bulk electrons with a thermal distribution with a temperature of a few electron volts, and a component of fast electrons with an energy of about 30 eV and a thermal spread of about 0.1 eV. Measurements of both parallel and perpendicular energy spreads confirm the existence of fast, low energy spread electrons. Selective extraction of these electrons can form the basis of a high current, high brightness electron gun which could be well suited for EBIS applications. 8 refs., 4 figs., 1 tab.
- Research Organization:
- Brookhaven National Lab., Upton, NY (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5232314
- Report Number(s):
- BNL-46629; CONF-9109298-1; ON: DE92001776
- Resource Relation:
- Conference: 5. international symposium on electron beam ion sources and their applications, Dubna (USSR), 24-27 Sep 1991
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:5232314
Extraction of a steady state electron beam from HCD plasmas for EBIS applications
Conference
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Fri Jan 01 00:00:00 EST 1988
·
OSTI ID:5232314