Numerical studies of high current beam compression in heavy ion fusion

Conference · Tue Oct 01 00:00:00 EDT 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6077976

Bisognano, J; Lee, F P; Mark, J W.K.

The process of longitudinal compression of a drifting heavy ion pulse to be used as an ICF driver is examined with the aid of particle simulation. Space charge forces play a vital role in halting compression before the final focus lens system is reached. This must take place with minimal growth of transverse emittance and momentum spread. Of particular concern are the distortion of longitudinal phase space by the rounded transverse profile of the longitudinal self-electric field. For application as an ICF reactor driver, a heavy-ion beam pulse must be longitudinally compressed by 1 to 2 orders of magnitude to achieve the peak power required to ignite a target. This process, among others, will be tested in a facility known as the ''High-Temperature Experiment'' in heavy-ion fusion. Beam compression is a critical element of an accelerator for heavy-ion fusion; it occurs primarily after the main phase of acceleration and before final focus onto target. Here we examine the compression of a drifting heavy-ion pulse with the aid of particle simulations. We describe initial theoretical results for an in-principle solution to this problem. Further refinements including integration into a complete driver system are necessary before the least costly solution can be chosen.

• Research Organization: Lawrence Berkeley Laboratory, Berkeley, CA
• OSTI ID: 6077976
• Report Number(s): CONF-850504-
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Vol. NS-32:5; Conference: Particle accelerator conference, Vancouver, Canada, 13 May 1985
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
HEAVY ION ACCELERATORS
INERTIAL CONFINEMENT
ION BEAMS
COMPUTERIZED SIMULATION
MAGNETIC COMPRESSION
BEAM BUNCHING
BEAM CURRENTS
BEAM DYNAMICS
BEAM EMITTANCE
HEAVY ION FUSION REACTIONS
ION BEAM TARGETS
SPACE CHARGE
ACCELERATORS
BEAMS
COMPRESSION
CONFINEMENT
CURRENTS
NUCLEAR REACTIONS
PLASMA CONFINEMENT
SIMULATION
TARGETS
430200* - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics
700208 - Fusion Power Plant Technology- Inertial Confinement Technology