Secondary electron emission from boron-doped diamond under ion impact: Applications in single-ion detection

1997 ◽  
Vol 71 (13) ◽  
pp. 1875-1877 ◽  
Author(s):  
Tomihiro Kamiya ◽  
Marian Cholewa ◽  
Andrew Saint ◽  
Steven Prawer ◽  
George J. F. Legge ◽  
...  
Keyword(s):  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Ion Detection ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
Ion Impact

Secondary Electron Emission from Boron Doped Diamond Films Grown by MPCVD

2013 ◽  
Vol 28 (5) ◽  
pp. 688-692
Author(s):  
丁明清 DING Ming-qing ◽  
李莉莉 LI Li-li ◽  
冯进军 FENG Jin-jun
Keyword(s):  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Diamond Films ◽  
Boron Doped Diamond ◽  
Boron Doped

Investigations of secondary electron emission from boron doped diamond films grown by MPCVD

IVESC 2012 ◽  
2012 ◽  
Author(s):  
Ming Q. Ding ◽  
Lili Li ◽  
Jinjun Feng ◽  
Yujuan Gao ◽  
Qilue Chen ◽  
...  
Keyword(s):  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Diamond Films ◽  
Boron Doped Diamond ◽  
Boron Doped

Surface effects in a capacitive argon discharge in the intermediate pressure regime

2021 ◽  
Author(s):  
Jon Tomas Gudmundsson ◽  
Janez Krek ◽  
De-Qi Wen ◽  
Emi Kawamura ◽  
Michael A Lieberman
Keyword(s):  
Excited States ◽  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Plasma Sheath ◽  
Secondary Electrons ◽  
Particle In Cell ◽  
Argon Discharge ◽  
Discharge Operation ◽  
Ion Impact

Abstract One-dimensional particle-in-cell/Monte Carlo collisional (PIC/MCC) simulations are performed on a capacitive 2.54 cm gap, 1.6 Torr argon discharge driven by a sinusoidal rf current density amplitude of 50 A/m2 at 13.56 MHz. The excited argon states (metastable levels, resonance levels, and the 4p manifold) are modeled self-consistently with the particle dynamics as space- and time-varying fluids. Four cases are examined, including and neglecting excited states, and using either a fixed or energy-dependent secondary electron emission yield due to ion and/or neutral impact on the electrodes. The results for all cases show that most of the ionization occurs near the plasma-sheath interfaces, with little ionization within the plasma bulk region. Without excited states, secondary electrons emitted from the electrodes are found to play a strong role in the ionization process. When the excited states, secondary electron emission due to neutral and ion impact on the electrodes are included in the discharge model, the discharge operation transitions from α-mode to γ-mode, in which nearly all the ionization is due to secondary electrons. Excited states are very effective in producing secondary electrons, with approximately 14.7 times the contribution of ion bombardment. Electron impact of ground state argon atoms by secondary electrons contributes about 76 % of the total ionization; primary electrons, about 11 %; metastable Penning ionization, about 13 %; and multi-step ionization, about 0.3 %.

scholarly journals Secondary Electron Emission from Carbon Foils under O2+ Ion Impact

2014 ◽  
Vol 488 (13) ◽  
pp. 132045
Author(s):  
Y Yu ◽  
S D Liu ◽  
Y T Zhao ◽  
Y Y Wang ◽  
X M Zhou ◽  
...  
Keyword(s):  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Ion Impact ◽  
Carbon Foils
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