FPGA implementation of a real-time digital pulse processing analysis for radiation detectors

Zhang, Jinglong; Qin, Xue; Zhao, Mingyang; Chen, Xiao

doi:10.1016/j.apradiso.2021.109900

Cited by 9 publications

(5 citation statements)

References 17 publications

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“…Ref. 10 and 11 reported FPGA based designs operating with high sampling rates (higher than 100 MS/s). The achieved energy resolutions by these two designs at 662 keV energy are 8% and 7.38% respectively.…”

Section: Resultsmentioning

confidence: 99%

Development of a low-cost digital gamma spectrometer using an STM32F4 microcontroller

Shaker,

Kasban,

Saleh

et al. 2024

J. Anal. At. Spectrom.

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Section: Resultsmentioning

confidence: 99%

Development of a low-cost digital gamma spectrometer using an STM32F4 microcontroller

Shaker,

Kasban,

Saleh

et al. 2024

J. Anal. At. Spectrom.

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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%

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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“…Past research has investigated the use of trapezoidal and triangular pulse shaper algorithms that take the digitized samples of exponentially decaying pulses and convert them into another form that can be more easily analyzed [5]. Multiple shapers have also been implemented with different "fast" and "slow" shaping constants so that multiple pulses that overlap (double counts) can be identified and removed [6].…”

Section: Digital Signal Processingmentioning

confidence: 99%

“…Previous work has investigated trapezoidal shaping algorithms that convert detected pulses into alternative forms for better energy resolution, and have been shown to be superior to a quasi-Gaussian shaper [5]. Existing examples of these shapers working on actual hardware [6] use pre-existing FPGA/DAQ boards which limit the detector size and cause a reliance on existing commercial technology.…”

Section: Introductionmentioning

confidence: 99%

“…FPGA-based digital pulse processing systems have been implemented previously at The Chengdu University of Technology [6] using COTS data acquisition boards with footprints of 193 mm by 122 mm, and wired USB connections to upload data to a host's computer. Researchers from Chung-Ang University used a commercial FPGA evaluation board integrated with an ADC board within a PC case [4]; this work had an inherent deadtime where pulses were ignored while the convolution process was unfolding, limiting count rates to approximately 1500 pulses per second.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compact Back-End Electronics with Temperature Compensation and Efficient Data Management for In Situ SiPM-Based Radiation Detection

Dixon

Monk

Graham

et al. 2023

Sensors

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A compact back-end interface for silicon photomultipliers (SiPMs) implementing Zener diode-based temperature compensation has been developed for the remote detection of beta and gamma radiation. Remote detection is facilitated by the development of an efficient data management system utilising MySQL database storage for recording periodic spectra data for wireless access over a private Wi-Fi network. A trapezoidal peak shaping algorithm has been implemented on an FPGA for the continuous conversation of pulses from the SiPM, signifying the detection of a radiological particle, into spectra. This system has been designed to fit within a 46 mm cylindrical diameter for in situ characterization, and can be attached to one or more SiPMs used in conjunction with a range of scintillators. LED blink tests have been used to optimise the trapezoidal shaper coefficients to maximise the resolution of the recorded spectra. Experiments with an array of SiPMs integrated with a NaI(Tl) scintillator exposed to sealed sources of Co-60, Cs-137, Na-22 and Am-241 have shown that the detector achieves a peak efficiency of 27.09 ± 0.13% for a gamma peak at 59.54 keV produced by Am-241, and a minimum energy resolution (Delta E/E) of 4.27 ± 1.16% for the 1332.5 keV gamma peak from Co-60.

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FPGA implementation of a real-time digital pulse processing analysis for radiation detectors

Cited by 9 publications

References 17 publications

Development of a low-cost digital gamma spectrometer using an STM32F4 microcontroller

Development of a low-cost digital gamma spectrometer using an STM32F4 microcontroller

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

Compact Back-End Electronics with Temperature Compensation and Efficient Data Management for In Situ SiPM-Based Radiation Detection

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