The Effect of Laser Energy on the Initial Plasma Characteristics of Laser-Triggered Vacuum Switch

2018 ◽  
Vol 46 (8) ◽  
pp. 2954-2958 ◽  
Author(s):  
Yinan Xin ◽  
Zhenghao He ◽  
Yuchen Liu
Keyword(s):  
Laser Energy ◽  
Vacuum Switch ◽  
Initial Plasma ◽  
Plasma Characteristics

Spreading of the initial plasma of triggered vacuum switch

2016 ◽  
Author(s):  
Jinru Sun ◽  
Xueling Yao ◽  
Wenjun Xu ◽  
Jingliang Chen ◽  
Yi Wu
Keyword(s):  
Vacuum Switch ◽  
Initial Plasma

scholarly journals Plasma characteristics of Ag:Al alloy produced by fundamental and second harmonic frequencies of Nd:YAG laser

2019 ◽  
Vol 14 (31) ◽  
pp. 205-214
Author(s):  
Ali A-K. Hussain
Keyword(s):  
Laser Ablation ◽  
Energy Range ◽  
Electron Temperature ◽  
Nd:Yag Laser ◽  
Laser Energy ◽  
Second Harmonic ◽  
Spectral Lines ◽  
Distilled Water ◽  
Harmonic Frequency ◽  
Plasma Characteristics

In this work, the spectra for plasma glow produced by pulseNd:YAG laser (λ=532 and 1064nm) on Ag:Al alloy with same molarratio samples in distilled water were analyzed by studying the atomiclines compared with aluminum and silver strong standard lines. Theeffect of laser energies of the range 300 to 800 mJ on spectral lines,produced by laser ablation, were investigated using opticalspectroscopy. The electron temperature was found to be increasedfrom 1.698 to 1.899 eV, while the electron density decreased from2.247×1015 to 5.08×1014 cm-3 with increasing laser energy from 300to 800 mJ with wavelength of 1064 nm. The values of electrontemperature using second harmonic frequency are greater than of1064 nm, which increased from 2.405 to 2.444 eV, while the electrondensity decreased from 2.210×1015 to 1.516×1015 cm-3 withincreasing laser energy for the same energy range.

Initial Plasma Development of Field-Breakdown Triggered Vacuum Switch

2011 ◽  
Vol 39 (1) ◽  
pp. 360-363 ◽  
Author(s):  
Zhengyang Zhou ◽  
Minfu Liao ◽  
Jiyan Zou ◽  
Fuchang Lin ◽  
Li Zhang ◽  
...  
Keyword(s):  
Vacuum Switch ◽  
Initial Plasma

scholarly journals Effect of Target properties on the Plasma Characteristics that produced by Laser at Atmospheric Pressure

2019 ◽  
pp. 1251-1258
Author(s):  
Qusay Adnan Abbas
Keyword(s):  
Pulse Laser ◽  
Atmospheric Pressure ◽  
Ionization Energy ◽  
Laser Energy ◽  
Wave Length ◽  
Optical Emission ◽  
Fundamental Wave ◽  
Pulse Laser Energy ◽  
Plasma Characteristics ◽  
Ionic Emission

In this paper, Al and Cu Plasmas that produced by pulsed Nd:YAG laser with fundamental wave length with a pulse duration of 6 nS focused onto Al and Cu targets in atmospheric air are investigated spectroscopically. The influence of pulse laser energy on the some Al and Cu plasmas characteristics was diagnosed by using optical emission spectroscopy for the wavelength range 320-740 nm. The results observed that the increase of pulse laser energy causes to increase all plasma characteristics of both plasmas under study and shown increasing of the emission line intensity. The appearance of the atomic and ionic emission lines of an element in the emission spectrum depends on the ionization energy of target atoms. The plasma characteristics are subjected to the ionization energy of the target element and laser energy.

MANAGEMENT OF BLADDER STONE WITH HOLMIUM-YAG LASER AT KARDINAH HOSPITAL TEGAL

2020 ◽  
Vol 27 (1) ◽  
pp. 1-4
Author(s):  
Fatan Abshari ◽  
Zulfikar Ali
Keyword(s):  
General Hospital ◽  
Laser Energy ◽  
Major Complication ◽  
Mucosal Injury ◽  
Cross Sectional Study ◽  
Stone Size ◽  
Cross Sectional ◽  
Yag Laser ◽  
Bladder Stones ◽  
Large Size

Objective: Transurethral lithotripsy using Holmium-YAG laser has been reported to be beneficial in breaking up bladder stones with large size (>4cm in diameter) with lower risk of mucosal injury and hematuria. The aim of this study is to evaluate the utilization of Holmium-YAG laser for the management of bladder stones at Kardinah General Hospital, Tegal. Material & Methods: This is a cross-sectional study conducted from January 2017 to March 2017. Patient’s demography, which included age, sex, length of surgery, stone size, and laser’s energy count were recorded. Results: We included 120 patients in this study. Mean of patients age in this study was 51.93 years old with age range were 41-85 years old. Most of the patients were male (109 vs 11) with a mean size of stone 25.09 ± 3.04 mm. Length of surgery ranges from 15 to 75 minutes and mean energy of the laser 28.99 ± 19.34 kJ. There was 100% stone’s clearance following surgery with no major complication occurred. Conclusion: Holmium-YAG laser is effective in managing bladder stones at Kardinah General Hospital particularly for large size stones. Length of surgery and energy of laser used depend on the stone size in which bigger stone size is associated with longer surgery time and bigger laser energy needed.

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