X-선 화물 검색기용 64채널 데이터 획득 시스템 개발
Development of a 64-channel Data Acquisition System for X-ray Cargo Inspection System
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초록
X-ray cargo inspection systems installed in airports and borders, are used to identifycontraband such as nuclear materials, explosives, or drugs. It includes X-ray generator, cargotransporting equipment, control system and image processing system. The image processing system,particularly, is composed of sensor module, data acquisition system, control unit and computer. Inthis study, we have been developed a data acquisition system for FPGA-based 64-channel imagesensor module. The system produces local timing signals to control the sensor module, digitize analogoutput signals generated from sensor module, and transmit digital data sequentially to controlunit without loss. The timing of the main control signals was verified by using a logic analyzer. Thedetector array was irradiated with visible light, and output pulses corresponding to the incidentdirection and intensity were observed by oscilloscope. Finally, the images were successfully capturedaccording to the intensity of visible light by data acquisition software.
Abstract
X-ray cargo inspection systems installed in airports and borders, are used to identifycontraband such as nuclear materials, explosives, or drugs. It includes X-ray generator, cargotransporting equipment, control system and image processing system. The image processing system,particularly, is composed of sensor module, data acquisition system, control unit and computer. Inthis study, we have been developed a data acquisition system for FPGA-based 64-channel imagesensor module. The system produces local timing signals to control the sensor module, digitize analogoutput signals generated from sensor module, and transmit digital data sequentially to controlunit without loss. The timing of the main control signals was verified by using a logic analyzer. Thedetector array was irradiated with visible light, and output pulses corresponding to the incidentdirection and intensity were observed by oscilloscope. Finally, the images were successfully capturedaccording to the intensity of visible light by data acquisition software.
참고문헌 (5)
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- Buffler A, "Detecting contraband using neutrons: Challenges and future directions", Radiat. Meas, 45(10), pp.1186~1192 (2010)
- Liew SV, "Identification and imaging of special nuclear materials and contraband using active x-ray interrogation", Phys. Procedia, 90, pp.313~322 (2017)
- Liu Y, "Comparison of neutron and high-energy X-ray dual-beam radiography for air cargo inspection", Appl. Radiat. Isot, 66(4), pp.463~473 (2008)
- Sowerby BD, "Recent advances in fast neutron radiography for cargo inspection", Nucl. Instrum. Methods Phys. Res. A, 580(1), pp.799~802 (2007)