Experimental verification of preset time count rate meters based on adaptive digital signal processing algorithms

• Published in: Nuclear Technology and Radiation Protection Vol. 20; no. 2; pp. 40 - 44
• Main Author: Zigic, Aleksandar
• Format: Journal Article
• Language: English
• Published: VINCA Institute of Nuclear Sciences 2005
• Subjects: adaptive signal processing; experimental verification; FIR filter; mean count rate; rate meter
• ISSN: 1451-3994; 1452-8185; 1452-8185
• DOI: 10.2298/NTRP0502040Z

Experimental verifications of two optimized adaptive digital signal processing algorithms implemented in two pre set time count rate meters were per formed ac cording to appropriate standards. The random pulse generator realized using a personal computer, was used as an artificial radiation source for preliminary system tests and performance evaluations of the pro posed algorithms. Then measurement results for background radiation levels were obtained. Finally, measurements with a natural radiation source radioisotope 90Sr-90Y, were carried out. Measurement results, con ducted without and with radio isotopes for the specified errors of 10% and 5% showed to agree well with theoretical predictions. Eksperimentalne verifikacije dva optimizovana algoritma adaptivne digitalne obrade signala koji su implementirani u dva meraca srednjeg odbroja na bazi predodredjenog vremena, uradjene su prema odgovarajucim standardima. Gen er a tor slucajnih impulsa, realizovan uz pomoc personalnog racunara, koriscen je kao vestacki izvor radijacije za preliminarna testiranja sistema i evaluacije performansi predlozenih algoritama. Zatim su dobijeni rezultati merenja za zracenje u nivou pozadinskog jonizujuceg zracenja. Na kraju obavljena su merenja sa radioizotopom 90Sr-90Y, kao prirodnim izvorom jonizujuceg zracenja. Rezultati merenja, dobijeni bez i sa radioizotopom za specificirane vrednosti greski od 10% i 5% pokazali su blisko slaganje sa teorijskim predikcijama rezultata.