Alpha track counting in LR-115 nuclear detector with optical Fourier digital system

M. J. Eghan; Paul Buah-Bassuah

doi:10.1117/12.524479

19 November 2003 Alpha track counting in LR-115 nuclear detector with optical Fourier digital system

M. J. Eghan, Paul Buah-Bassuah

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.524479
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

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.

Citation Download Citation

M. J. Eghan and Paul Buah-Bassuah "Alpha track counting in LR-115 nuclear detector with optical Fourier digital system", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.524479

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