Diagnosis of helicon plasma by local OES

R Cui, R Han, K Yang, W Zhu, Y Wang… - Plasma Sources …, 2020 - iopscience.iop.org
Optical emission spectroscopy (OES) is a common method for characterizing radio
frequency (RF) discharge plasmas. Particulary, helicon plasma is featured by its high …

The wave mode transition of argon helicon plasma

R Cui, T Zhang, F He, B Zheng… - Plasma Sources Science …, 2024 - iopscience.iop.org
In this paper, multiple wave modes and transitions of argon helicon plasma excited by a half
right-helical antenna in a system without any reflection endplate are investigated …

[HTML][HTML] RF sheath induced sputtering on Proto-MPEX. I. Sheath equivalent dielectric layer for modeling the RF sheath

CJ Beers, DL Green, C Lau, JR Myra, J Rapp… - Physics of …, 2021 - pubs.aip.org
The pulsed linear plasma device Prototype Material Plasma Exposure eXperiment (Proto-
MPEX) uses a radio frequency (RF) helicon antenna with an aluminum nitride ceramic …

Changing pattern of N2 dissociation in N2–Ar RF plasma during E–H mode transition

A Mukherjee, M Chakraborty, N Sharma… - … Sources Science and …, 2023 - iopscience.iop.org
The behaviour of nitrogen plasma mixed with varying proportions of argon (10%–80%) is
investigated under different RF discharge conditions. It is observed that at a relatively low RF …

Comparison of heating mechanisms of argon helicon plasma in different wave modes with and without blue core

CUI Ruilin, T Zhang, Y Qian, HE Feng… - Plasma Science and …, 2022 - iopscience.iop.org
In this work, we investigated the discharge characteristics and heating mechanisms of argon
helicon plasma in different wave coupled modes with and without blue core. Spatially …

Effect of neutral pressure on the blue core in Ar helicon plasma under an inhomogeneous magnetic field

W Chenwen, LIU Yang, SUN Meng… - Plasma Science and …, 2023 - iopscience.iop.org
The effect of neutral pressure on the blue core in Ar helicon plasma under an
inhomogeneous magnetic field was investigated in this work. The neutral pressure was set …

Simulation of ion cyclotron resonance heating by using particle-in-cell method in MPS-LD linear plasma device

C Sun, C Sang, H Wang, Y Zhang… - Plasma Physics and …, 2023 - iopscience.iop.org
The auxiliary heating of electrons and ions in linear plasma devices (LPDs) is necessary to
achieve the boundary plasma relevant environment of tokamaks, to investigate the boundary …

Effect of argon and oxygen gas concentration on mode transition and negative ion production in helicon discharge

N Sharma, M Chakraborty, PK Saha… - Journal of Applied …, 2020 - pubs.aip.org
In this paper, the effect of mixing of argon and oxygen gas on the mode transition and
negative ion production in the helicon discharge is investigated. In the source chamber of …

A study on the influence of external magnetic field on nitrogen RF discharge using Langmuir probe and OES methods

A Mukherjee, N Sharma, M Chakraborty… - Physica Scripta, 2022 - iopscience.iop.org
This paper reports the study of the effects of an externally applied magnetic field (0–300 G),
in the mode transition as well as in the radial and axial variation of different plasma …

Development of a compact helicon plasma source with two sets of ring array permanent magnets for the study of blue core plasma

Y Xia, X Yang, L Chang, H Zhou, JH Zhang… - Review of Scientific …, 2023 - pubs.aip.org
A compact helicon plasma source for the study of helicon plasma, especially for the study of
blue core plasma, is designed and developed with permanent magnets (PMs). The structure …