JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{isherwood:ecris2020-moyzo03,
author = {B.C. Isherwood and G. Machicoane},
title = {{The Relationship Between the Diffusion of Hot Electrons, Plasma Stability, and ECR Ion Source Performance}},
booktitle = {Proc. ECRIS'20},
% booktitle = {Proc. 24th International Workshop on ECR Ion Sources (ECRIS'20)},
pages = {38--42},
eid = {MOYZO03},
language = {english},
keywords = {plasma, ECR, electron, ion-source, cyclotron},
venue = {East Lansing, MI, USA},
series = {International Workshop on ECR Ion Sources},
number = {24},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {07},
year = {2022},
issn = {2222-5692},
isbn = {978-3-95450-226-4},
doi = {10.18429/JACoW-ECRIS2020-MOYZO03},
url = {https://jacow.org/ecris2020/papers/moyzo03.pdf},
abstract = {{Plasma instabilities complicate the operation of electron cyclotron resonance ion sources. In particular, quasi-periodic losses of electrons from confinement due to kinetic cyclotron instabilities hinder ion source performance. Empirical scaling laws help guide the development of sources away from the most unstable operating points but are poorly understood. Further advancement of ECR ion source technologies requires a deeper understanding of instabilities, scaling laws, and internal processes of the ion source plasma itself. We present here results of an experimental study into these instabilities and scaling laws, and measurements of hot electron diffusion (E > 10 keV) from the 18 GHz SUSI ECRIS at the NSCL. Measurements of the average argon current and the standard deviation of their variations across multiple unstable operating points are shown. These measurements are compared to measurements of electrons that diffuse axially from the plasma chamber. In doing so it will be shown how controlling the diffusion of electrons control the stability of the plasma and optimize the ion source’s performance.}},
}