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Parameters affecting profile shape of a high energy low current thin ion beam. Vol. 2

Abstract

The shape of the profile of a high energy, low current beam of finite length has beam investigated. The beam profile shape depends on the initial beam radius, beam perveance, atomic mass number, charge state of ions, and beam length. These parameters can affect the relation between the initial beam radius and the corresponding final one. An optimum initial beam radius corresponding to minimum final beam at the target has been formulated and the relation between them is deduced taking account of the space charge effect. The minimum beam radius at the target was found to be equal to 2.3 of the optimum initial radius. It is concluded that in order to obtain a small beam radius at a target placed at a finite distance from an ion source, a beam of a low perveance, low atomic mass number and high number of electronic charge is required. This is an important detection for micro machining applications using the oscillating electron ion source which produces nearly paraxial thin beam of low perveance. 12 figs.
Authors:
Abdel Salam, F W; Moustafa, O A; El-Khabeary, H [1] 
  1. Accelerators Department, Nuclear Research Center, Atomic Energy Authority, Cairo, (Egypt)
Publication Date:
Mar 01, 1996
Product Type:
Miscellaneous
Report Number:
INIS-EG-002; CONF-960316-
Reference Number:
SCA: 430301; 430200; PA: AIX-28:030758; EDB-97:056916; SN: 97001765315
Resource Relation:
Conference: 6. conference of nuclear sciences and applications, Cairo (Egypt), 15-20 Mar 1996; Other Information: PBD: Mar 1996; Related Information: Is Part Of Proceedings of the sixth conference of nuclear sciences and applications. Vol. 1-4; PB: 1760 p.
Subject:
43 PARTICLE ACCELERATORS; ION BEAMS; PARAMETRIC ANALYSIS; CURRENTS; ENERGY; IONS; LENGTH; MASS NUMBER; SHAPE; TARGETS; THEORETICAL DATA
OSTI ID:
456054
Research Organizations:
Atomic Energy Establishment, Cairo (Egypt); Egyptian Society of Nuclear Sciences and Applications, Cairo (Egypt)
Country of Origin:
Egypt
Language:
English
Other Identifying Numbers:
Other: ON: DE97620041; TRN: EG9601753030758
Availability:
INIS; OSTI as DE97620041
Submitting Site:
INIS
Size:
pp. 184
Announcement Date:

Citation Formats

Abdel Salam, F W, Moustafa, O A, and El-Khabeary, H. Parameters affecting profile shape of a high energy low current thin ion beam. Vol. 2. Egypt: N. p., 1996. Web.
Abdel Salam, F W, Moustafa, O A, & El-Khabeary, H. Parameters affecting profile shape of a high energy low current thin ion beam. Vol. 2. Egypt.
Abdel Salam, F W, Moustafa, O A, and El-Khabeary, H. 1996. "Parameters affecting profile shape of a high energy low current thin ion beam. Vol. 2." Egypt.
@misc{etde_456054,
title = {Parameters affecting profile shape of a high energy low current thin ion beam. Vol. 2}
author = {Abdel Salam, F W, Moustafa, O A, and El-Khabeary, H}
abstractNote = {The shape of the profile of a high energy, low current beam of finite length has beam investigated. The beam profile shape depends on the initial beam radius, beam perveance, atomic mass number, charge state of ions, and beam length. These parameters can affect the relation between the initial beam radius and the corresponding final one. An optimum initial beam radius corresponding to minimum final beam at the target has been formulated and the relation between them is deduced taking account of the space charge effect. The minimum beam radius at the target was found to be equal to 2.3 of the optimum initial radius. It is concluded that in order to obtain a small beam radius at a target placed at a finite distance from an ion source, a beam of a low perveance, low atomic mass number and high number of electronic charge is required. This is an important detection for micro machining applications using the oscillating electron ion source which produces nearly paraxial thin beam of low perveance. 12 figs.}
place = {Egypt}
year = {1996}
month = {Mar}
}