Maryam Hosseinzadeh

Amirkabir University of Technology | TUS · Department of Energy Engineering and Physics

This paper reports the simulation of an electron gun. The effects of some parameters on the beam quality were studied and optimal choices were identified. It gives numerical beam qualities in common electrostatic triode gun, and the dependences on design parameters such as electrode geometries and bias voltages to these electrodes are shown. An ele...

A new ion source has been designed and manufactured for the CYCLONE30 accelerator, which has a much advanced performance compared with the original. It is expected that the newly designed ion source extraction system will transport a very large percentage of the beam without deteriorating the beam optics, which is designed to deliver an H− beam at...

A new ion source will be designed and manufactured for the CYCLONE30 commercial cyclotron with a much advanced performance compared with the previous one. The newly designed ion source has more plasma density, which is designed to deliver an H– beam at 30 keV. In this paper numerical simulation of the magnetic flux density from permanent magnet use...

A Monte Carlo simulation code has been developed to optimize the number of magnets confining the plasma in the H-multicusp ion source. This code improves the existing drawbacks in the particle studio CST program and predicts the lifetime of primary electrons and the effects of collisions of electrons and hydrogen gas atoms. In this simulation are f...

The existing C-30 cyclotron at NRCAM is currently capable of emitting a proton beam with only Emax=30 MeV. To improve this Emax to higher energies of 250 MeV for proton therapy, this beam is injected into the conceptually designed Medical Proton Synchrotron accelerator. Prior to injection, the beam emittances in both x- and y-directions were measur...

A compact model of synchrotron accelerator facility is proposed for the treatment of deep seated tumors with proton therapy. The extracted beam from the existing C-30 cyclotron is first injected into the model of synchrotron. The injected beam is specified with its longitudinal plane as well as its horizontal and vertical emittances. For this desig...