Intense pulsed-ion-beam neutralization focusing and collective plasma interactions. Doctoral thesis

Technical Report · Thu Aug 01 04:00:00 EDT 1985

OSTI ID:7019535

Kraft, R

The purpose of this thesis is to study the propagation of an intense pulsed ion beam in certain environments. Three areas of ion beam propagation are studied: charge and current neutralization by electrons when a beam is injected into a vacuum region; focusing of a beam when it is axially injected into a solenoidal magnetic lens; and collective interactions when a beam passes through a background hydrogen plasma. The experimentally observed beam behavior in each of these situations is analyzed and compared with theoretical models. In the experiment, a beam (360 keV., 65 amps/sq cm, 150 ns.) was extracted from a planar, magnetically insulated diode and injected into a field free vacuum region. The beam was found to be both charge and current neutralized by electrons drawn axially into the beam from the cathode of the diode. The neutralization process was modelled with a theory which predicts the velocity distribution of the comoving neutralizing electrons.

• Research Organization: Cornell Univ., Ithaca, NY (USA)
• OSTI ID: 7019535
• Report Number(s): AD-A-220603/5/XAB
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
BEAM NEUTRALIZATION
BEAM-PLASMA SYSTEMS
BEAMS
DISTRIBUTION
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EQUIPMENT
FERMIONS
HYDROGEN
INTERACTIONS
ION BEAMS
LEPTONS
MAGNETIC FIELDS
NONMETALS
PLASMA
PULSES
RF SYSTEMS
SOLENOIDS
WAVE PROPAGATION