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Proceedings Paper

Alpha track counting in LR-115 nuclear detector with optical Fourier digital system
Author(s): M. J. Eghan; Paul Buah-Bassuah
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Paper Abstract

An optical Fourier system comprising two Fourier lenses arranged in a 4 - f configuration, a CCD camera coupled to an Analogue Digital (A/D) converter and interfaced to a computer, has been found effective to image and discriminate real etched alpha tracks and artifacts on LR-115. The choice of the optical components enhanced the system's sensitivity and the field of view of detector area (1.4 cm2). The use of spatial filters in the Fourier plane deforms the tracks and introduces phase variation of the Fourier transform signal. In addition narrow bandwidth filters could not cover broader range of all the tracks. Image analysis before track counting improves signals to noise ratio and increase the selectivity of the tracks signal size. The system can handle higher track density and other types track detectors.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.524479
Show Author Affiliations
M. J. Eghan, Univ. of Cape Coast (Ghana)
Paul Buah-Bassuah, Univ. of Cape Coast (Ghana)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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