Particle Dynamics in the Injector of Ion Linear Induction Accelerator

Self Cite

The dynamics of a high-current proton beam in the cusp magnetic field and in the uniform magnetic field of the drift region in the presence of an accelerating field in the cusp region and of two types of compensating electron beams (before and after the cusp) has been studied. It is shown that for the taken beam parameters and magnetic field it is impossible to accelerate a proton beam of the density higher than 1012 cm-3 with maintaining its initial transverse size and monoenergeticity.

Section: Discussionmentioning

confidence: 75%

Acceleration of a High-Current Proton Beam in a Linear Induction Accelerator at Its Compensation by Electron Beams

Fedorovskaya¹,

Maslov²,

Onishchenko³

2022

Self Cite

“…High-current ion beam accelerators are widely used for surface modification in radiation materials science [1] and are being studied for their potential application in heavy ion beam inertial confinement fusion [2]. Therefore, obtaining such ion beams is a relevant scientific and technical challenge.…”

Section: Introductionmentioning

confidence: 99%

Acceleration of Compensated High-Current Ion Beam With Cusp Magnetic Electron Insulation in the Accelerating Gap and Subsequent Compensation With an Electron Beam

Fedorovskaya¹,

Maslov²,

Onishchenko³

2023

Self Cite

2.5D simulation of the process of the magnetic isolation of electrons and the acceleration of ions when injecting a high-current ion beam, compensated by an electron beam, into a magnetic cusp with an accelerating gap, followed by its re-compensation by another electron beam and transportation along the drift region with a longitudinal magnetic field, was carried out. The dependence of the characteristics of the accelerated and compensated ion beam at the drift region exit upon the set of initial parameters of the ion and electron beams and the values of the magnetic and accelerating electric fields was considered.

“…High-current ion beams are widely used in many applications, including materials science [1,2] and inertial heavy ion fusion [3,4]. Their production is based on the use of high-density plasma flows [5], the ion component of which, before entering the accelerating gap, gets rid of the electronic component by isolating the electrons with a transverse magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Isolation of Electrons by the Magnetic Field Of a Cusp for High-Density Ion Beam Acceleration

Fedorovskaya,

Maslov,

Onishchenko

2023

2.5D numerical simulation was carried out of the process of ions isolation from electrons of a compensated ion beam by the cusp magnetic field of the before entering the accelerating gap located in the region of zero magnetic field of the cusp, followed by the compensation of the accelerated ion beam with new electrons and transportation of the compensated ion beam to the next section of the linear induction ion accelerator. In contrast to the previously simulated compensated high-current ion beam with an energy of 250 keV (now non-existent), the equivalent plasma flow of a traditional coaxial plasma gun with real parameters: density 1010…1012 cm-3 and velocity 107 cm/s was considered as an injected compensated ion beam.