# Radial Current and Rotation Profile Tailoring in Highly Ionized Linear Plasma Devices

## TL;DR

This paper explores how to control electric field profiles in rotating magnetized plasmas by analyzing radial currents arising from inertial and viscous effects, enabling tailored plasma behavior.

## Contribution

It introduces a theoretical framework for calculating the irreducible radial current in rotating plasma cylinders considering inertial and viscous mechanisms.

## Key findings

- Radial current depends on rotation frequency and plasma profiles.
- Expressions suggest new methods for electric field profile control.
- Potential for improved plasma device performance.

## Abstract

In a rotating magnetized plasma cylinder with shear, cross-field current can arise from inertial mechanisms and from the cross-field viscosity. Considering these mechanisms, it is possible to calculate the irreducible radial current draw in a cylindrical geometry as a function of the rotation frequency. The resulting expressions raise novel possibilities for tailoring the electric field profile by controlling the density and temperature profiles of a plasma.