First application of a digital mirror Langmuir probe for real-time plasma diagnosis

2021 ◽  
Vol 92 (10) ◽  
pp. 103502
Author(s):  
W. McCarthy ◽  
T. Golfinopoulos ◽  
K. B. Woller ◽  
C. Vincent ◽  
A. Kuang ◽  
...  
Keyword(s):  
Real Time ◽  
Langmuir Probe ◽  
Plasma Diagnosis

scholarly journals Real-time control of divertor detachment in H-mode with impurity seeding using Langmuir probe feedback in JET-ITER-like wall

2017 ◽  
Vol 59 (4) ◽  
pp. 045001 ◽  
Author(s):  
C Guillemaut ◽  
M Lennholm ◽  
J Harrison ◽  
I Carvalho ◽  
D Valcarcel ◽  
...  
Keyword(s):  
Real Time ◽  
Langmuir Probe ◽  
Real Time Control ◽  
Time Control

A pulsed Langmuir probe for plasma diagnosis

Pramana ◽  
1975 ◽  
Vol 5 (6) ◽  
pp. 349-353
Author(s):  
A K Chatterjee ◽  
S K Guharay ◽  
S N Sen Gupta
Keyword(s):  
Langmuir Probe ◽  
Plasma Diagnosis

Design of Fast Scanning Langmuir Probe Diagnostic System Suitable for Transient Arc Plasma Diagnosis in Arc Ion Plating

2012 ◽  
Vol 152-154 ◽  
pp. 1711-1716
Author(s):  
Wen Chang Lang ◽  
Xiang Hong Wang ◽  
Xiu Rong Nan
Keyword(s):  
Integrated Circuit ◽  
Langmuir Probe ◽  
Diagnostic System ◽  
Sine Wave ◽  
Arc Plasma ◽  
Power Module ◽  
Plasma Diagnosis ◽  
High Power Amplifier ◽  
Depth Analysis ◽  
Transient Plasma

In order to detect the arc plasma, an in-depth analysis on the relationship between the technology and film properties is conducted in this article. In addition, a fast scanning Langmuir probe diagnostic system suitable for transient plasma diagnosis is also designed, coupled with the design scheme and schematic diagram. Regard the integrated circuit of MAX038 as the core，and utilize FET to input high-fidelity operational amplifier OPA604 as well as high power amplifier PA93 to complete the intelligent saw-tooth wave sweep frequency power with the output amplitude of ± 100V, output frequency ranging from 10Hz to 10MHz as well as the adjustable frequency and duty cycle. Then test the output waveform and the results show that the power module can precisely generate triangle wave, saw-tooth wave, rectangular wave (including square wave) and sine wave signal.

scholarly journals Langmuir Probe Technique for Plasma Characterization during Pulsed Laser Deposition Process

Coatings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 762
Author(s):  
Stefan Andrei Irimiciuc ◽  
Sergii Chertopalov ◽  
Jan Lancok ◽  
Valentin Craciun
Keyword(s):  
Laser Ablation ◽  
Plasma Physics ◽  
Pulsed Laser Deposition ◽  
Real Time ◽  
Langmuir Probe ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Diagnostic Tools ◽  
Full Potential

The history of pulsed laser deposition (PLD) and transient plasmas generated by laser ablation is intertwined with the development of various techniques for its fundamental understanding. Some diagnostic tools have been developed to better suit the rapid transient nature of the plasma (space and time dependence of all parameters, fast decay and complex chemistry inside the plasma), whereas others have been adapted from basic plasma physics studies. Langmuir probe method has been used as a real-time in situ diagnostic tool for laser ablation and later for PLD. It remains a useful tool for the PLD community arsenal, which can easily be adapted to the development of new lasers and ablation regimes and new deposition configuration, being one of the most versatile techniques for plasma diagnostics. It is the cornerstone on which charge particles are analyzed and has led to several important discoveries, such as multiple peak distribution, selective acceleration during expansion, plume splitting, plasma turbulences and fluctuations. However, because the Langmuir probe theory adaptation from classical plasma physics is not straightforward, it might lead to misinterpretation and often incorrect analysis of data. This review analyzes the limits and understanding of the technique as a foundation for attaining its full potential, which can impact the way PLD is used. This is especially useful for the pressing need of real-time, in-situ diagnostics and feedback loops for systematic semi-industrial implementation of the PLD technique.

scholarly journals The digital mirror Langmuir probe: Field programmable gate array implementation of real-time Langmuir probe biasing

2019 ◽  
Vol 90 (8) ◽  
pp. 083504
Author(s):  
C. Vincent ◽  
W. McCarthy ◽  
T. Golfinopoulos ◽  
B. LaBombard ◽  
R. Sharples ◽  
...  
Keyword(s):  
Real Time ◽  
Langmuir Probe ◽  
Field Programmable Gate Array ◽  
Probe Field ◽  
Field Programmable ◽  
Gate Array
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