Plasma-to-target Warp Simulations of Uranium Beams Extracted from Venus Compared to Emittance Measurements and Beam Images *
نویسندگان
چکیده
This work presents the latest results of an ongoing effort to simulate the extraction from ECR ion sources and the Low Energy Beam Transport (LEBT). Its aim is to help understand the influence of parameters like initial ion distributions at the extraction aperture, ion temperatures and beam neutralization on the quality of the beam and to provide a design-tool for extractionand transport-systems. Simulations of multispecies beams (Uranium of charge state 15+ to 42+ and Oxygen) extracted from the VENUS ECR ion source are presented and compared to experimentally obtained emittance values.
منابع مشابه
Comparison of Extraction and Beam Transport Simulations with Emittance Measurements from the Ecr Ion Source Venus
The versatility of ECR (Electron Cyclotron Resonance) ion sources makes them the injector of choice for many heavy ion accelerators. However, the design of the LEBT (Low Energy Beam Transport) systems for these devices is challenging, because it has to be matched for a wide variety of ions. In addition, due to the magnetic confinement fields, the ion density distribution across the extraction a...
متن کاملDesign Status of Ecr Ion Source and Lebt for Frib*
The Facility for Rare Isotope Beams (FRIB) at Michigan State University will provide intense beams of rare isotopes for research in nuclear physics, nuclear astrophysics and study of fundamental interactions. A Superconducting linac will accelerate the primary beam to energies beyond 200 Mev/u and is designed to reach a maximum beam power close to 400kW on the fragmentation target. In the case ...
متن کاملSimulations and experiments with space-charge-dominated beams
Beams in which space charge forces are stronger than the force from thermal pressure are nonneutral plasmas, since particles interact mostly via the long-range collective potential. An ever-increasing number of applications demand such high-brightness beams. The University of Maryland Electron Ring @P. G. O’Shea et al., Nucl. Instrum Methods Phys. Res. A 464, 646 ~2001!#, currently under constr...
متن کاملPreservation of beam emittance in the presence of ion motion in future high-energy plasma-wakefield-based colliders.
The preservation of beam quality in a plasma wakefield accelerator driven by ultrahigh intensity and ultralow emittance beams, characteristic of future particle colliders, is a challenge. The electric field of these beams leads to plasma ions motion, resulting in a nonlinear focusing force and emittance growth of the beam. We propose to use an adiabatic matching section consisting of a short pl...
متن کاملEnd-to-End Simulation: The Front End
For the intense beams in heavy ion fusion accelerators, details of the beam distribution as it emerges from the source region can determine the beam behavior well downstream. This occurs because collective space-charge modes excited as the beam is born remain undamped for many focusing periods. Traditional studies of the source region in particle beam systems have emphasized the behavior of ave...
متن کامل