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Beams

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Beams are integral components of structural engineering and construction, designed to support loads applied at various points along their length. These long, straight members can be classified based on geometry, cross-section, support type, and equilibrium condition.
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A beam transport system for an intense He(-) beam source.

N Tanaka¹, M Kikuchi, T Nagamura

¹Tohoku University, Aoba, Sendai, Japan. nozomi.tanaka@ppl2.qse.tohoku.ac.jp

The Review of Scientific Instruments

|March 5, 2008

Summary

Developing a test stand for fast neutral helium (He(0)) beam production, this study addresses challenges in transporting helium ion (He(+)) and electron (He(-)) beams. Effective beam transport and space charge neutralization were investigated for optimized He(0) generation.

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Area of Science:

Atomic and Molecular Physics
Accelerator Physics
Plasma Physics

Background:

Developing a test stand for fast neutral helium (He(0)) beam production.
Effective transport of helium ion (He(+)) and electron (He(-)) beams is crucial for He(0) generation.
Focusing the beam at the charge exchange cell and electrostatic accelerator is a key challenge.

Purpose of the Study:

To investigate and optimize the beam transport system for fast He(0) beam production.
To understand the effects of space charge neutralization on beam transport.
To ensure precise focusing of He(+) and He(-) beams at critical points.

Main Methods:

Experimental studies of the beam transport system.
Computational calculations to model beam dynamics.
Analysis of space charge neutralization effects.

Main Results:

Characterization of the beam transport system's performance.
Quantification of space charge effects on beam focusing.
Validation of experimental and computational findings.

Conclusions:

The developed beam transport system is effective for He(0) production.
Space charge neutralization plays a significant role in beam stability and focusing.
The study provides a foundation for optimizing high-intensity neutral beam generation.