Effects of gas pressure and discharge current on beam composition in a magnetron discharge ion source

2019 ◽  
Vol 90 (11) ◽  
pp. 113312
Author(s):  
Alexey Vizir ◽  
Efim Oks ◽  
Maxim Shandrikov ◽  
Bin Zhang ◽  
Georgy Yushkov
Keyword(s):  
Discharge Current ◽  
Ion Source ◽  
Gas Pressure ◽  
Magnetron Discharge

scholarly journals Effect of working gas pressure on mass-to-charge composition of plasma ions in high-current planar magnetron discharge

2021 ◽  
Vol 2064 (1) ◽  
pp. 012121
Author(s):  
M V Shandrikov ◽  
A V Vizir ◽  
A S Klimov ◽  
E M Oks ◽  
V P Frolova
Keyword(s):  
Discharge Current ◽  
Axial Direction ◽  
Plasma Electron ◽  
Gas Pressure ◽  
Charge Composition ◽  
Operating Pressure ◽  
Working Pressure ◽  
Magnetron Discharge ◽  
Plasma Ions ◽  
Planar Magnetron

Abstract The mass-to-charge ion composition of a planar magnetron discharge plasma has been investigated. The measurements used a modified quadrupole mass-spectrometer and a time-of-flight spectrometer. The experiments were carried out on a copper magnetron target. Argon was used as a working gas. The operating pressure was 0.15÷1.3 Pa. The discharge current was 1÷20 A with a pulse duration of 30÷50 μs. The influence of main operating parameters (discharge current and working gas pressure) on mass-to-charge composition of plasma ions was measured. The mass-to-charge composition of plasma ions in the axial direction was measured as a function of working pressure. Plasma electron temperature was measured and its effect on the mass-to-charge composition of magnetron plasma ions was estimated.

Characteristics of a High Current P.I.G. Ion Source at Low Gas Pressure

1967 ◽  
Vol 14 (3) ◽  
pp. 53-59 ◽  
Author(s):  
Mohamed E. Abdelaziz ◽  
Ahmed M. Ghander
Keyword(s):  
Ion Source ◽  
Gas Pressure ◽  
High Current

scholarly journals INFLUENCE OF METAL HYDRIDE HOLLOW CATHODE ON PENNING ION SOURCE OPERATION

2021 ◽  
pp. 65-68
Author(s):  
I. Sereda ◽  
D. Ryabchikov ◽  
Ya. Hrechko ◽  
Ie. Babenko
Keyword(s):  
Plasma Density ◽  
Hollow Cathode ◽  
Metal Hydride ◽  
Discharge Current ◽  
Ion Source ◽  
Negative Bias ◽  
Working Pressure ◽  
Discharge Operation ◽  
Source Operation ◽  
Gas Supply

The influence of metal hydride hollow cathode on a Penning ion source operation has been carried out. The feature of investigation is hydrogen injection only due to its desorption from metal hydride under ion-stimulated processes. The regimes of optimal discharge operation in the hollow cathode mode are determined. It has been revealed that the transition to the hollow cathode mode occurs at lower voltages, the discharge works without external gas supply, and the working pressure in the cell is set at the level determined by the discharge current. The supply of a negative bias to the metal hydride hollow cathode weakly affects the features of the emission of axial particles, although it allows the increase of plasma density near the metal hydride hollow cathode.

scholarly journals Soft X-ray lasing at 519.7 Å in a Recombining Z-pinch Plasma

1997 ◽  
Vol 15 (4) ◽  
pp. 589-595 ◽  
Author(s):  
E. Eberl ◽  
T. Wagner ◽  
J. Jacoby ◽  
A. Tauschwitz ◽  
D.H.H. Hoffmann
Keyword(s):  
Discharge Current ◽  
Line Intensity ◽  
Gas Pressure ◽  
Time Resolved ◽  
X Ray ◽  
Pinch Plasma ◽  
Gain Length ◽  
Z Pinch ◽  
Time Resolved Measurements

This paper is reviewing the amplification of XUV radiation at 519.7 and 498.5 Å with a gain-length product of 2.5 and 2.2 for the 4f-3d and 4d-3p transition in an oxygen Z-pinch plasma. Time resolved measurements of the O VI (519.7 Å) transition were performed and the dependence of the line intensity on the discharge current and initial gas pressure is reported.

scholarly journals Emission characteristics of laser ablation-hollow cathode glow discharge spectral source

2014 ◽  
Vol 13 (1) ◽  
Author(s):  
Stefan Karatodorov ◽  
Valentin Mihailov ◽  
Margarita Grozeva
Keyword(s):  
Laser Ablation ◽  
Glow Discharge ◽  
Hollow Cathode ◽  
Discharge Current ◽  
Spatial Separation ◽  
Gas Pressure ◽  
Hollow Cathode Discharge ◽  
Sample Introduction ◽  
Emission Characteristics ◽  
Sample Material

AbstractThe emission characteristics of a scheme combining laser ablation as sample introduction source and hollow cathode discharge as excitation source are presented. The spatial separation of the sample material introduction by laser ablation and hollow cathode excitation is achieved by optimizing the gas pressure and the sample-cathode gap length. At these conditions the discharge current is maximized to enhance the analytical lines intensity.

Parametric Study of a Low-Pressure Theta-Pinch Discharge in Argon for Preliminary Analytical Optimization

1989 ◽  
Vol 43 (6) ◽  
pp. 991-997 ◽  
Author(s):  
Jeffrey S. White ◽  
Gae Ho Lee ◽  
Alexander Scheeline
Keyword(s):  
Discharge Current ◽  
Parametric Study ◽  
Low Pressure ◽  
Gas Pressure ◽  
Discharge Energy ◽  
Current Waveform ◽  
Theta Pinch ◽  
Discharge Gas

The qualitative dependence of spectrochemical performance of a thetapinch discharge on a variety of experimental variables including discharge gas pressure, sample positioning, discharge energy, and discharge current waveform is reported.

He-Ne laser gain dependence on discharge current and gas pressure from resonant Faraday effect

2000 ◽  
Author(s):  
Alina Gearba ◽  
C. Negutu ◽  
Gabriela Cone ◽  
Ion M. Popescu
Keyword(s):  
Discharge Current ◽  
Faraday Effect ◽  
Gas Pressure ◽  
Laser Gain

Selection of the residual gas pressure suitable for operating a positive ion source of thermal ionization type

1998 ◽  
Vol 69 (2) ◽  
pp. 1182-1184 ◽  
Author(s):  
Hiroyuki Kawano ◽  
Keiko Ogasawara ◽  
Hajime Kobayashi ◽  
Akihide Tanaka ◽  
Tomoko Takahashi ◽  
...  
Keyword(s):  
Ion Source ◽  
Gas Pressure ◽  
Thermal Ionization ◽  
Residual Gas ◽  
Positive Ion ◽  
Selection Of
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