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Australis: Progress Report

Abstract

The first stage of the development of AUSTRALIS, a microbeam AMS system at the HIGF laboratory at North Ryde, Sydney has been completed. The system is designed to enable in-situ microanalysis of geological samples for ultra-traces and for isotopic data for minerals exploration research. The negative ions for analysis are produced by sputtering with a microbeam of Cs{sup +}from a modified General Ionex model 834 HICONEX ion source. The source features a novel intermediate or `screen` electrode to correct for the effect of the secondary ion extraction field on the trajectory of the primary beam,in order to bring the primary beam to the geometric centre. The high energy analysis system of AUSTRALIS features a pair of deflector systems to permit fast switching of isotopes without altering the magnet setting. The paper describes the initial tests` results showing good agreement with the design parameters. 5 refs., 4 figs.
Authors:
Sie, S H; Niklaus, T R; Suter, G F [1] 
  1. Commonwealth Scientific and Industrial Research Organisation (CSIRO), North Ryde, NSW (Australia). Div. of Exploration Geoscience
Publication Date:
Dec 31, 1996
Product Type:
Miscellaneous
Report Number:
INIS-AU-0003; CONF-9511295-
Reference Number:
SCA: 400101; 440103; 665100; PA: AIX-28:056338; EDB-97:118996; SN: 97001840812
Resource Relation:
Conference: 9. Australian conference on nuclear technique of analysis, Newcastle (Australia), 27-29 Nov 1995; Other Information: PBD: [1996]; Related Information: Is Part Of 9th Australian conference on nuclear techniques of analysis. Proceedings; PB: 186 p.
Subject:
40 CHEMISTRY; 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 66 PHYSICS; MASS SPECTROMETERS; PROTON MICROPROBE ANALYSIS; BEAM OPTICS; CESIUM IONS; EXPERIMENTAL DATA; ION SOURCES; ISOTOPE RATIO; MASS SPECTROSCOPY; MICROANALYSIS; PROTON BEAMS; SECONDARY EMISSION; SPUTTERING; TRACE AMOUNTS
OSTI ID:
520455
Research Organizations:
Australian Inst. of Nuclear Science and Engineering, Lucas Heights, NSW (Australia)
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Other: ON: DE97638268; TRN: AU9716160056338
Availability:
INIS; OSTI as DE97638268
Submitting Site:
AUN
Size:
pp. 56-58
Announcement Date:

Citation Formats

Sie, S H, Niklaus, T R, and Suter, G F. Australis: Progress Report. Australia: N. p., 1996. Web.
Sie, S H, Niklaus, T R, & Suter, G F. Australis: Progress Report. Australia.
Sie, S H, Niklaus, T R, and Suter, G F. 1996. "Australis: Progress Report." Australia.
@misc{etde_520455,
title = {Australis: Progress Report}
author = {Sie, S H, Niklaus, T R, and Suter, G F}
abstractNote = {The first stage of the development of AUSTRALIS, a microbeam AMS system at the HIGF laboratory at North Ryde, Sydney has been completed. The system is designed to enable in-situ microanalysis of geological samples for ultra-traces and for isotopic data for minerals exploration research. The negative ions for analysis are produced by sputtering with a microbeam of Cs{sup +}from a modified General Ionex model 834 HICONEX ion source. The source features a novel intermediate or `screen` electrode to correct for the effect of the secondary ion extraction field on the trajectory of the primary beam,in order to bring the primary beam to the geometric centre. The high energy analysis system of AUSTRALIS features a pair of deflector systems to permit fast switching of isotopes without altering the magnet setting. The paper describes the initial tests` results showing good agreement with the design parameters. 5 refs., 4 figs.}
place = {Australia}
year = {1996}
month = {Dec}
}