Plasma focus as a source of collimated beams of negative ion clusters and of neutral deuterium atoms
We report the space anisotropy and brightness B/sub 4/ (i.e., the momentum normalized density in four dimensional transverse phase space) of a high-intensity pulsed source of neutral-atom and negative-ion-cluster beams with energy/atom E> or approx. = 0.2 MeV, ion clusters with m/Z (a.u.) > 200. The source is formed in an 0.5 MA plasma focus-PF-discharge. The energy spectrum of different particle species is obtained from a 12.2 kG magnetic analyzer, energy filters and time resolved detectors. Collimated particle beams are ejected within a < 6/sup 0/ cone along the discharge axis inside a > 3 mm diameter plasma channel (neutral atoms, ion clusters, impurity heavy ions at 0/sup 0/, electron beams, clusters and negatively-charged ion clumps at 180/sup 0/). Pulsed kA currents of ions (and neutral fluence of comparable intensity at 180/sup 0/) are detected in the 6/sup 0/ cone at 0/sup 0/ with B/sub 4/ approx. 10/sup 7/ (mA/cm/sup 2/rad/sup 2/) for particle energies E > or approx. = 200 KeV. In the 180/sup 0/ direction the soruce ejects multiple pulses of electron and ion beams in alternating sequency (typical pulse duration approx. 10 ns) with a net negative charge which provide charge neutralization for ion and ion cluster beams. The source which can operate, in principle, at a high repetition rate has a scaling law in which the particle-intensity increases without a detectable increase of the angular dispersion.
- Research Organization:
- Stevens Institute of Technology, Hoboken, NJ 07030
- OSTI ID:
- 5679599
- Report Number(s):
- CONF-831180-; TRN: 86-019629
- Journal Information:
- AIP Conf. Proc.; (United States), Vol. 111:1; Conference: 3. international symposium on the production and neutralization of negative ions and beams, Upton, NY, USA, 14 Nov 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
CARBON
ENERGY SPECTRA
NEUTRAL BEAM SOURCES
COPPER
DEUTERIUM
BRIGHTNESS
HELIUM 4
HYDROGEN IONS 1 MINUS
ION SOURCES
ION PAIRS
NITROGEN
PLASMA FOCUS
ATOMIC BEAMS
ELECTRON EMISSION
ION EMISSION
ATOMIC BEAM SOURCES
EXPERIMENTAL DATA
KEV RANGE 100-1000
PHASE SPACE
PULSES
ANIONS
BEAMS
CHARGED PARTICLES
DATA
ELEMENTS
EMISSION
ENERGY RANGE
EVEN-EVEN NUCLEI
HELIUM ISOTOPES
HYDROGEN IONS
HYDROGEN ISOTOPES
INFORMATION
IONS
ISOTOPES
KEV RANGE
LIGHT NUCLEI
MATHEMATICAL SPACE
METALS
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SPACE
SPECTRA
STABLE ISOTOPES
TRANSITION ELEMENTS
640301* - Atomic
Molecular & Chemical Physics- Beams & their Reactions