Related Experiment Video
Updated: Dec 27, 2025
08:31
Sample Preparation and Experimental Design for In Situ Multi-Beam Transmission Electron Microscopy Irradiation Experiments
Published on: June 27, 2022
2.2K
Steering an intense relativistic electron beam in a linear induction accelerator
Carl Ekdahl1, P Allison1, J E Coleman1
1Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, USA.
The Review of Scientific Instruments
|March 2, 2020
Summary
Achieve optimal electron beam transport in linear induction accelerators by precisely centering the beam using a novel steering method. This technique minimizes measurements and adjustments for efficient beam positioning.
Area of Science:
- Physics
- Accelerator Science
- Beam Dynamics
Background:
- Optimal electron beam transport in linear induction accelerators (LIAs) requires precise centering on the magnetic axis.
- Misalignment during injection necessitates beam steering using dipole magnets.
- Traditional trial-and-error steering is inefficient, particularly for low-repetition-rate accelerators.
Purpose of the Study:
- To present an efficient method for steering electron beams within a linear induction accelerator.
- To reduce the number of measurements and adjustments required for beam centering.
- To enable precise positioning of the electron beam at desired locations, including the accelerator centerline.
Main Methods:
- Development of a new beam steering algorithm.
- Implementation of a minimal measurement and adjustment protocol.
- Utilizing dipole magnets for precise beam trajectory control.
Main Results:
- Demonstration of a steering method requiring significantly fewer steps than traditional approaches.
- Successful precise positioning of the electron beam to the magnetic axis.
- Validation of the method's effectiveness for various beam injection conditions.
Conclusions:
- The proposed steering method offers an efficient and effective solution for electron beam centering in LIAs.
- This technique can significantly reduce accelerator downtime and operational complexity.
- It provides a reliable way to achieve optimal beam transport and performance.
More Related Videos
Related Concept Videos
01:23Induced Electric Fields
4.5K
The fact that emfs are induced in circuits implies that work is being done on the conduction electrons in the wires. What can possibly be the source of this work? We know that it’s neither a battery nor a magnetic field, as a battery does not have to be present in a circuit where current is induced, and magnetic fields never do any work on moving charges. The source of the work is in fact an electric field that is induced in the wires. For example, if a stationary conductor is placed in a...
4.5K
01:27Induced Electric Fields: Applications
2.4K
An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
2.4K
01:22Motion Of A Charged Particle In A Magnetic Field
6.5K
A charged particle experiences a force when moving through a magnetic field. Consider the field to be uniform and the charged particle to move perpendicular to it. If the field is in a vacuum, the magnetic field is the dominant factor determining the motion. Since the magnetic force is perpendicular to the direction of motion, a charged particle follows a curved path. The particle continues to follow this curved path until it forms a complete circle. Another way to look at this is that the...
6.5K
01:28Induced Electric Dipoles
4.6K
A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
4.6K
01:24Inductance: Solid Cylindrical Conductor
774
To calculate the inductance of a solid cylindrical conductor, consider a 1-meter section of a non-magnetic, current-carrying conductor with radius r. Disregarding end effects and assuming uniform current density, Ampere's law helps determine the magnetic field inside the conductor. This law states that the magnetic field intensity H is concentric and constant within the conductor.
Given the uniform current distribution, the magnetic field Hx and flux density Bx inside the conductor are...
Given the uniform current distribution, the magnetic field Hx and flux density Bx inside the conductor are...
774
01:05Relating Angular And Linear Quantities - II
6.2K
In the case of circular motion, the linear tangential speed of a particle at a radius from the axis of rotation is related to the angular velocity by the relation:
6.2K