NDLI: Computational models for investigation of channel amplifier’s optimal parameters

Content Provider	Springer Nature Link
Author	Shymanska, Alla Babakov, Vitali
Copyright Year	2013
Abstract	Microchannel electron multipliers, which amplify the input current of electrons through complicated stochastic processes, have found wide applications in different areas of science and engineering due to a number of remarkable properties. However, the loss of information caused by the statistical fluctuations in the gain of the channels, increases a noise factor which is a measure of the loss of available information. Investigations dealing with reducing of the noise factor are of considerable practical interest. The method, based on 3D Monte Carlo simulations and theorems about serial and parallel amplification stages, is used to show the dependence of the average gain and noise factor on the energy and the incidence angle of the input electron beam, and to find their optimal combination. The spread in incidence coordinates of the electrons of the input beam on the interior surface of a channel is taken into account in the model. The results are compared with a model where the incidence coordinate is same for all input electrons. The numerical experiments show that the spread in the collision coordinates of primary electrons significantly affects the average gain and the noise factor, and must be taken into account in theoretical models. The optimal combinations of the energy and the angle of the input electron beam, which provide the minimal noise factor and maximum gain, are obtained. Such investigations are effectively conducted using the method of serial and parallel amplification stages, and would be practically impossible using only direct simulations by the Monte Carlo methods.
Starting Page	161
Ending Page	169
Page Count	9
File Format	PDF
ISSN	15698025
Journal	Journal of Computational Electronics
Volume Number	13
Issue Number	1
e-ISSN	15728137
Language	English
Publisher	Springer US
Publisher Date	2013-08-20
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Microchannel electron amplifier Monte Carlo simulations Energy and incidence angle of input electrons Spread in collision coordinates Average gain Noise factor ApplicationMathematics/Computational Methods of Engineering Electrical Engineering Theoretical, Mathematical and Computational Physics Optical and Electronic Materials Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering Modeling and Simulation

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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