6533b85dfe1ef96bd12bdbb2

RESEARCH PRODUCT

3D-simulation studies of the modified magnetic multipole structure for an electron cyclotron resonance ion source

H. KoivistoP. SuominenOlli Tarvainen

subject

Cylindrical multipole momentsPhysicsNuclear and High Energy PhysicsMagnetic energyCondensed matter physicsMagnetForce between magnetsCyclotron resonanceMultipole expansionInstrumentationElectron cyclotron resonanceIon cyclotron resonanceComputational physics

description

Experiments have shown that efficient operation of an electron cyclotron resonance ion source requires that the magnetic field fulfills the so-called scaling laws. In most cases the requirements for the radial magnetic field, i.e. the strength of the magnetic multipole are the most difficult to satisfy. This is due to the fact that the multipole is usually produced from permanent magnets, which makes a value of 1.3 T feasible. One possible solution to increase the multipole field is the so-called Modified MultiPole Structure (JYFL-MMPS). This new idea makes it possible to increase the magnetic field at the places where the plasma flux is in contact with the plasma chamber wall. In this article we will present detailed three-dimensional magnetic field simulations of the JYFL-MMPS.

yearjournalcountryeditionlanguage
2004-10-01Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
https://doi.org/10.1016/j.nimb.2004.05.031