Results 21 to 30 of about 484,111 (194)

Laser Induced Nano and Micro Structures of Molybdenum Surface Applied in Multistage Depressed Collector for Secondary Electron Suppression

Applied Sciences, 2019
The laser processing molybdenum metal surface method was first proposed to enhance the efficiency of multistage depressed collectors (MDCs). In this study, the secondary electron yield (SEY), surface geometrical morphologies and chemical states of laser ...
Jie Wang, Yong Gao, Zhiming You, Jiakun Fan, Jing Zhang, Sheng Wang, Zhanglian Xu   +6 more
doaj   +1 more source

Comparative analysis of the secondary electron yield from carbon nanoparticles and pure water medium [PDF]

, 2015
The production of secondary electrons generated by carbon nanoparticles and pure water medium irradiated by fast protons is studied by means of model approaches and Monte Carlo simulations.
de Vera, Pablo, Guatelli, Susanna, Korol, Andrei V., McKinnon, Sally, Rosenfeld, Anatoly, Solov'yov, Andrey V., Surdutovich, Eugene, Verkhovtsev, Alexey   +7 more
core   +3 more sources

Secondary electron emission from insulators and negative electron affinity semiconductors

Results in Physics, 2021
Based on expression of primary range R and the R at Epo ≥ 10.0 keV and L at Epo ≥ 1.0 keV calculated by ESTAR program [1], the method of obtaining formula for R at Epo ≥ 1.0 keV is presented; where Epo is incident energy of primary electron, and L is the
Ai-Gen Xie, Zheng Pan, Hong-Jie Dong, Chen-Nan Song   +3 more
doaj   +1 more source

Improvement of Transmission Secondary Electron Yield

The Journal of the Institute of Television Engineers of Japan, 1972
多孔性KCl膜の中間にAlを真空蒸着する改良を行なったところ, 放出比が大きくなる結果を得た.さらに, アルゴン雰囲気中でAlとKClを同時に蒸着した試料では, これまでのうち最も良い放出特性を有することが認められた.また, relf sustained emissionが観察されたので, 冷陰極MgOと同じ観点からの研究の可能性が生じてきた.最後に, 多孔性KClの放出機構をパイプ状2次電子増倍管と類似の機構で説明した.
Heiju Uchiike, Shigetomo Yoshida
openaire   +2 more sources

GEANT4 Study of Secondary Electron Emission in ZnO Nanorod Arrays under 10-100 MeV Oxygen Ion Irradiation

Фізика і хімія твердого тіла
Computational study of secondary electron emission (SEE) from ZnO nanorod arrays deposited on Au/Si₃N₄ substrates under irradiation with 16O ions in the 10–100 MeV energy range was performed. Using a combination of SRIM and GEANT4 Monte Carlo simulations,
V. Kotsyubynsky, M. Cholewa, V. Kindrat, V. Boychuk, N. Mentynskyi, R. Abaszade, Y. Sukhorebskyi   +6 more
doaj   +1 more source

Secondary electron emission yield in the limit of low electron energy

, 2013
Secondary electron emission (SEE) from solids plays an important role in many areas of science and technology.1 In recent years, there has been renewed interest in the experimental and theoretical studies of SEE.
Andronov, A. N., Demidov, V. I., Kaganovich, I. D., Raitses, Y., Smirnov, A. S., Startsev, E. A.   +5 more
core   +1 more source

Numerical simulation of the generation of secondary electrons in the High Current Experiment

Physical Review Special Topics. Accelerators and Beams, 2003
Electron effects in the High Current Experiment (HCX) are studied via computer simulation. An approximate expression for the secondary electron yield for a potassium ion striking stainless steel is derived and compared with experimental results.
P. H. Stoltz, M. A. Furman, J.-L. Vay, A. W. Molvik, R. H. Cohen   +4 more
doaj   +1 more source

Effect of ion nonthermality on nonlinear dust acoustic wave propagation in a complex plasma in presence of secondary electron emission

AIP Advances, 2017
In this paper we have investigated the effect of ion nonthermality on nonlinear dust acoustic wave propagation in a complex plasma in presence of secondary electron emission considering equilibrium dust charge positive. In space and astrophysical plasmas
Subrata Bhakta, Susmita Sarkar
doaj   +1 more source

Monte Carlo simulation study on secondary electron yield of SiO2

Results in Physics
Electron emission characteristics, mainly the intrinsic secondary electron yield, of an insulator material (glass SiO2) are studied by a Monte Carlo simulation method.
P. Guo, S.F. Mao, Y.B. Zou, T.F. Yang, H. Miao, Z.J. Ding   +5 more
doaj   +1 more source

Study of secondary electron emission from semiconductors induced by electrons from 20 eV to 800 eV and surface state of semiconductors

Results in Physics, 2019
Based on processes and characteristics of secondary electron emission (SEE), experimental data and the relations among parameters of secondary electron yield from semiconductors δ, the formula for δ in the range of 20 eV ≤ Epo ≤ 800 eV of semiconductors ...
Ai-Gen Xie, Yang Yu, Chen-Nan Song, Ya-Yi Chen   +3 more
doaj   +1 more source