Flexible and low-cost FPGA-based multichannel analyzer for handheld measurement devices

Cao, Van Hiep; Dinh, Tien Hung; Nguyen, Thi Thoa; Khanh, Nguyen; Kim, Dang Pham; Nguyen, Xuan Hai; Nguyễn, Ngọc Ánh; Nguyen, T. A. Khoa

doi:10.1016/j.nima.2021.165808

Cited by 12 publications

(10 citation statements)

References 12 publications

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“…Recently, a lot of research papers were interested in proposing new low-cost implementations for the DPP unit such as [3,[6][7][8][9][10][11]. Most of these papers are based on FPGA chips connected to separate ADC units.…”

Section: Jinst 18 T06003mentioning

confidence: 99%

“…The constructed spectrums of this prototype are showed to be conformal with commercial DPP units but the performance parameters versus ICR were not presented. The prototype presented in [11] is based on FPGA unit connected to ADC chip working with 100 MS/s. This prototype was showed to cope with input count rates up to 50 kC/s with 50 kC/s throughput.…”

Section: Jinst 18 T06003mentioning

confidence: 99%

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Development of low-cost digital gamma spectrometer using ARM Cortex-M Type Microcontroller Unit

et al. 2023

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Recently, digital gamma spectrometers have replaced analog ones due to their durability, flexibility, and compact size. The main part of the digital gamma spectrometer is the digital pulse processing (DPP) unit. The implementation of the DPP unit using the ARM Cortex-M-based microcontroller units is a recent attractive approach. This originates from their advanced features and low cost. In this paper, we propose an implementation of the DPP unit using the ARM Cortex-M3-based microcontroller unit. The targeted detector with this implementation is the sodium iodide detector. However, this implementation is based on less than 2 MS/s sampling rate, it is guaranteed experimentally to cope with input count rates up to 47 kC/s. This results from our specific proposed methodology for extracting pulse height from the trapezoidal-shaped pulses.

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Section: Jinst 18 T06003mentioning

confidence: 99%

Section: Jinst 18 T06003mentioning

confidence: 99%

Development of low-cost digital gamma spectrometer using ARM Cortex-M Type Microcontroller Unit

et al. 2023

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“…CDB spectrometer, whose analog circuits dominate signal processing, suffers from complicated set up processes, limited freedom of parameter configuration, and vulnerability to environment fluctuation as the analog setup needs a collection of standard Nuclear Instrument Modules (NIMs), including amplifier, multichannel analyzer, timing single channel analyzer, fast coincidence, etc. Digital circuits featuring high stability, flexibility, and improved performance have been adopted to build a nuclear spectrometer [10][11][12][13][14][15]. In refs.…”

Section: Jinst 18 P04036mentioning

confidence: 99%

“…To achieve on-line signal processing, it has been increasingly popular to implement digital algorithm on FPGA in nuclear instrumentation [11,[17][18][19]. While FPGA is powerful for the digital circuit design, it is intractable to communicate with the FPGA subsystem and control its behavior, especially when everything implemented within FPGA tends to be updated easily, including the structure of block design, digital algorithms, type of data to be collected, etc.…”

Section: Jinst 18 P04036mentioning

confidence: 99%

A fully digital coincidence Doppler broadening spectrometer based on FPGA

et al. 2023

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In this article, we implemented a fully digital Coincidence Doppler Broadening (CDB) spectrometer consisting of two HPGe detectors, a fully digital processing and acquisition board, and a dedicated software system. The Field Programmable Gate Array (FPGA) on the board extracts energy and time stamp of digitized pulses from HPGe detectors, and communicates with the dedicated software by which the single channel spectrums and 2D coincidence spectrum were produced. We designed an instruction set dedicated to the CDB Spectrometer and the controller module in FPGA so that the FPGA subsystem is fully controllable and configurable. The trapezoidal pulse shaping algorithm was implemented in FPGA whose arguments are all configurable through the dedicated software by the instruction set. We examined the long-term stability of the spectrometer by 511 keV peak position of both channels. The 2D Gaussian fitting is performed on coincidence spectrum by the software to correct the peak drift of both channels. The results show that this method effectively improves the Doppler-broadened spectrum, by which the peak-to-background ratio increases from 7.0 × 105 to 1.9 × 106.

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“…Also, this facilitates the upgrading of the old analog systems located in many nuclear laboratories around the world. Recently, a lot of researchers have been interested in developing low-cost DPP units using FPGA chips [5][6][7][8][9]. Other researchers were interested in using microcontroller units (MCU) to develop low-cost DPP units [10,11].…”

Section: Introductionmentioning

confidence: 99%

Design of low-cost digital pulse processing unit for gamma spectrometry

Shaker,

Salama,

Kasban

et al. 2024

J. Inst.

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Gamma spectrometers are used to quantify and identify radioisotopes in the sample under test. There is a recent interest around the world in implementing low-cost gamma spectrometers. One of the main parts of the modern gamma spectrometer is the digital pulse processing unit (DPP). The implementation of this unit using advanced microcontroller chips has appeared in recent years as an attractive approach. This is due to its advanced performance and low cost. In this paper, we present a design flow to implement a DPP unit using an ARM Cortex-M3-based microcontroller chip. The sodium iodide detector is the targeted detector for this design. Our prototype is approved experimentally to construct spectrums comparable to commercial devices. And it can cope with input count rates up to 45 kC/s.

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Flexible and low-cost FPGA-based multichannel analyzer for handheld measurement devices

Cited by 12 publications

References 12 publications

Development of low-cost digital gamma spectrometer using ARM Cortex-M Type Microcontroller Unit

Development of low-cost digital gamma spectrometer using ARM Cortex-M Type Microcontroller Unit

A fully digital coincidence Doppler broadening spectrometer based on FPGA

Design of low-cost digital pulse processing unit for gamma spectrometry

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