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

fYear

2008

fDate

12-15 May 2008

Firstpage

274

Lastpage

278

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE

Conference_Location

Victoria, BC

ISSN

1091-5281

Print_ISBN

978-1-4244-1540-3

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2008.4547045

Filename

4547045