Evolution and control of ion-beam divergence in applied- B diodes

Journal Article · Sun Nov 24 23:00:00 EST 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.3094· OSTI ID:6130168

Desjarlais, M P; Pointon, T D; Seidel, D B; Coats, R S; Kiefer, M L; Quintenz, J P; Slutz, S A ^[1]

---

1. Sandia National Laboratories, Albuquerque, New Mexico (USA)

The time evolution of beam divergence induced by electomagnetic instabilities in applied-{ital B} ion diodes is examined using the 3D particle-in-cell code QUICKSILVER. The evolution is generally characterized by a high-frequency, low-divergence phase, associated with the diocotron mode, followed by a low-frequency, high-divergence phase, associated with the two-stream-like ion mode. Limiting the extent of the electron density profile evolution allows the diocotron phase to be sustained with a resulting divergence of {approx}10 mrad.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6130168
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:22; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700411* -- Inertial Confinement Devices-- (1992-)
BEAMS
COMPUTER CODES
CONFINEMENT
COORDINATES
CURRENT DIVERGENCES
DATA
DIODE TUBES
ELECTROMAGNETISM
ELECTRON DENSITY
ELECTRON TUBES
FREQUENCY DEPENDENCE
GEOMETRY
INERTIAL CONFINEMENT
INFORMATION
INSTABILITY
ION BEAMS
MAGNETISM
MATHEMATICS
NUMERICAL DATA
OPTIMIZATION
PLASMA CONFINEMENT
PLASMA INSTABILITY
Q CODES
THEORETICAL DATA
THERMIONIC DIODES
THERMIONIC TUBES
THREE-DIMENSIONAL CALCULATIONS
TIME DEPENDENCE