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A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space
Published on: February 1, 2016
FPGA implementation of a real-time digital pulse processing analysis for radiation detectors.
Jinglong Zhang1, Xue Qin2, MingYang Zhao1
1College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, China.
A flexible field-programmable gate array (FPGA) firmware was developed for gamma-ray spectroscopy. This universal firmware enhances detector performance, enabling precise measurements with various detectors.
Area of Science:
- Nuclear Physics
- Instrumentation
- Spectroscopy
Background:
- Gamma-ray spectroscopy requires sophisticated signal processing.
- Existing firmware solutions can be inflexible and detector-specific.
Purpose of the Study:
- To develop and detail a universal, flexible firmware for field-programmable gate array (FPGA) based gamma-ray spectroscopy.
- To demonstrate the firmware's compatibility with multiple detector types.
Main Methods:
- Implementation of a novel firmware architecture on a custom-developed digitizer.
- Integration of key signal processing components: trapezoidal shaping, peak detection, pulse height analysis, and pile-up rejection.
- Testing with Sodium Iodide (NaI(Tl)), Cadmium Zinc Telluride (CdZnTe), and High-Purity Germanium (HPGe) detectors.
Main Results:
- Successful implementation of a universal and flexible firmware on FPGA.
- Demonstration of effective signal processing for gamma-ray spectroscopy.
- Validation of the firmware's performance across different detector technologies.
Conclusions:
- The developed FPGA firmware provides a versatile and high-performance solution for gamma-ray spectroscopy.
- This approach offers a standardized platform for various detector systems, simplifying instrumentation and improving data acquisition.
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