Numerical study on discharge characteristics influenced by secondary electron emission in capacitive RF argon glow discharges by fluid modeling

2018 ◽  
Vol 27 (2) ◽  
pp. 025201 ◽  
Author(s):  
Lu-Lu Zhao ◽  
Yue Liu ◽  
Tagra Samir
2009 ◽  
Vol 517 (5) ◽  
pp. 1706-1709 ◽  
Author(s):  
Sung Il Ahn ◽  
Seong Eui Lee ◽  
Si Hong Ryu ◽  
Kyung Cheol Choi ◽  
Sang Jik Kwon ◽  
...  

2009 ◽  
Vol 1174 ◽  
Author(s):  
Mikihiko Nishitani ◽  
Masahiro Sakai ◽  
Masaharu Terauchi ◽  
Yukihiro Morita ◽  
Yasushi Yamauchi

AbstractThe film of MgO-AlN system was manufactured by the conventional magnetron sputtering process. It is observed that a Fermi level could be raised by letting AlN composition increase, confirmed by ultraviolet (UV) photon energy dependence of the electronic emission, and investigated with XPS that the surface reaction, such as surface hydroxide / carbonate of MgO, could be controlled in addition of AlN. The glow discharge characteristics for MgAlON films were evaluated from the minimum pressure that a glow discharge is started under constant RF power, which correspond to the result of the analysis for the secondary electron emission coefficient, using Metastable De-excitation Spectroscopy (MDS).


2013 ◽  
Vol 815 ◽  
pp. 673-676
Author(s):  
Jian Ting Xiao ◽  
Jun Jian Li ◽  
Yi Yin ◽  
Zu Lun Lin ◽  
Kang Cheng Qi ◽  
...  

In order to improve the secondary electron emission coefficient of MgO, we propose to dope Al into MgO. The precursor was obtained by hydrothermal method in the condition of different reaction temperature, different filling volume and different reaction time by using urea, Mg (CH3COO)2and AlCl3. The Al-doping MgO crystallites powders were obtained by calcining the precursor. The crystal phase and morphology of the products were characterized by XRD and SEM. The results showed that the Al-doping MgO powders were cubic-shaped crystallites. The discharge characteristics of Al-doping MgO powders were tested in a chamber as when the panel was sealed in Ne and 7% Xe at 450 torr. As expected, the discharge voltage of the panel is lower with the Al-doping MgO protective layer than without that.


Author(s):  
R. D. Heidenreich

This program has been organized by the EMSA to commensurate the 50th anniversary of the experimental verification of the wave nature of the electron. Davisson and Germer in the U.S. and Thomson and Reid in Britian accomplished this at about the same time. Their findings were published in Nature in 1927 by mutual agreement since their independent efforts had led to the same conclusion at about the same time. In 1937 Davisson and Thomson shared the Nobel Prize in physics for demonstrating the wave nature of the electron deduced in 1924 by Louis de Broglie.The Davisson experiments (1921-1927) were concerned with the angular distribution of secondary electron emission from nickel surfaces produced by 150 volt primary electrons. The motivation was the effect of secondary emission on the characteristics of vacuum tubes but significant deviations from the results expected for a corpuscular electron led to a diffraction interpretation suggested by Elasser in 1925.


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