Research Article
An Embedded Digital Multi-channel Analyzer for Radiation Detection Based on FPGA
@INPROCEEDINGS{10.1007/978-3-030-77424-0_18, author={Quang-Kien Trinh and Van-Ninh Trinh and Thanh-Bang Le and Tien-Hung Dinh and Van-Hiep Cao}, title={An Embedded Digital Multi-channel Analyzer for Radiation Detection Based on FPGA}, proceedings={Industrial Networks and Intelligent Systems. 7th EAI International Conference, INISCOM 2021, Hanoi, Vietnam, April 22-23, 2021, Proceedings}, proceedings_a={INISCOM}, year={2021}, month={5}, keywords={Digital multi-channel analyzer (DMCA) DPP FPGA}, doi={10.1007/978-3-030-77424-0_18} }- Quang-Kien Trinh
Van-Ninh Trinh
Thanh-Bang Le
Tien-Hung Dinh
Van-Hiep Cao
Year: 2021
An Embedded Digital Multi-channel Analyzer for Radiation Detection Based on FPGA
INISCOM
Springer
DOI: 10.1007/978-3-030-77424-0_18
Abstract
In recent years, digital processing algorithms have been widely applied in spectrum processing applications. Besides, FPGA technology, thanks to its undeniable advantages in flexibility, high integration, and cost-effectiveness, is seriously considered as a practical platform for the realization of embedded digital signal processing (DSP) systems.
This work conducts a study on the practical implementation of Digital Multi-channel Analyzer (DMCA) based on reconfigurable hardware (FPGA). We proposed a modular reconfigurable DMCA design that is ready to be integrated into portable radiation detecting equipment and is still capable to handle high-speed signal sampling as well as could be extended to further functions such as remote sensing and classifying. This module could be integrated into the real-time radiation monitoring system. The algorithms of pulse shaping filter, detecting peaks and spectrum histogram processing are optimized and implemented entirely using available FPGA logic resources.
The design is experimentally verified in a system using Lanthanum Bromide Scintillation Radiation LaBr3(Ce) detector. The results are compared with commercial products (DSPEC of ORTEC), where isotopes137Cs and60Co gamma-ray spectra show that its performance partially is superior to the DSPEC in terms of full width at half maximum (FWHM), received and lost count rate, integral nonlinearity. This prototype system is highly promising for the multi-DMCA system in considering performance, cost, and form factors. Regarding resource utilization and performance, the whole design utilizes only 5% LEs, 24% memory resources of 10M50SAE144I7G FPGA from Intel and the DMCA core is capable to handle up to 97 MSPS sampling rates.
