Title :
Processing Architecture for High Count Rate Spectrometry with NaI(Tl) Detector
Author :
Bolic, Miodrag ; Drndarevic, Vujo
Author_Institution :
Sch. of Inf. Technol. & Eng., Univ. of Ottawa, Ottawa, ON
Abstract :
In this paper, implementation of the high count rate gamma-ray spectrometric system with Nal(Tl) detector is presented. The system supports count rates up to 4.2-10 pulses/s. The main focus of the paper is on implementation of algorithms for detection and correction of a pileup effect that is common at high count rates. The system is implemented on an FPGA platform and it is tested and verified using 228Th in presence of 137Cs. Experimental results show that the system is capable of reducing pileup effects and improving resolution of the energy spectrum.
Keywords :
field programmable gate arrays; gamma-ray detection; gamma-ray spectroscopy; solid scintillation detectors; 137Cs; 228Th; FPGA platform; Nal detector; high count rate gamma-ray spectrometric system; high count rate spectrometry; pileup effect; Anodes; Energy resolution; Field programmable gate arrays; Gamma ray detection; Gamma ray detectors; Hardware; Information technology; Instrumentation and measurement; Signal resolution; Spectroscopy; FPGA implementation; High Count Rate Spectrometry; Pileup correction;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1540-3
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2008.4547045
