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Research on X-ray Test Device of Mammograms Molybdenum Target Drone Based on Semiconductor Detector

Author: LiaoXuHui
Tutor: LiuChong
School: Nanhua University
Course: Detection Technology and Automation
Keywords: Mammography Molybdenum target drone X-ray semiconductor detector test device
CLC: TP274
Type: Master's thesis
Year: 2011
Downloads: 18
Quote: 0
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Abstract


This paper discusses the current domestic X-ray test cases of mammograms Molybdenum drone and analyzes the test item significance systematically. Combined with today’s technology background, the X-ray test device of Molybdenum drone on the theoretical basis of“continuous X-ray attenuation”has been researched. The research project involves the semiconductor detection, nuclear electronics, electronic circuit design and wireless data transmission knowledge. As a technical support, the continuous X-ray equilibrium theory points has been utilized to design a kind of excellent performance X-ray test device Molybdenum target drone.The Si-PIN photodiodes have been selected as semiconductor radiation detectors and with which the multiple semiconductor detector built in nuclear radiation detector array. The calibration factor table of test device and the output signal of detector array have been integrated and a linear interpolation method been utilized to obtain the four physical parameters: breast X-ray tube Mo drone ball voltage, dose, half-value layer and exposure time. It applies high-profile MCU as the system core, and radio frequency technology to measure wireless transmission data. The semiconductor detector has been used to measure physical parameters of X-ray Molybdenum drone conveniently. The main characteristics of the system have been reflected in low power consumption, stable performance, easy operation and real-time parameters measuring.The first chapter describes the development and research status of X-ray Molybdenum target drone. The second chapter describes the medical application basis of X-ray, the system principle and the measurement method of parameters. The third chapter analyzes function and demonstrates the design scheme. This paper has completed the design of hardware and software about system in the fourth and the fifth chapter. Finally, the system performance test and experimental data analysis have been accomplished in the sixth chapters. The paper has described the theory method, the hardware design circuit and the software design processes in detail in corresponding chapters. Overall performance of the instrument has been tested and the feasibility of the research contents been verified by the theory research and experimental analysis.

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