Ⅰ. 서론
1. 전자와 전자기파
2. 방사선과 엑스선
Ⅱ. 엑스선 영상장치
1. 의료 분야
2. 산업, 보안 분야
3. 디지털 엑스선 튜브 및 응용
Ⅲ. 엑스선 영상장치의 응용
1. 의료 분야
2. 산업, 보안 분야
3. 디지털 엑스선 튜브 및 응용
Ⅳ. 결론
초록
In modern times, X-ray imaging has become a necessary tool for early diagnosis, quality control, nondestructive testing, and security screening. X-ray imaging equipment generally comprises an X-ray generator and an image sensor. Most commercially available X-ray generators employ filament-thermionic electron-based X-ray tubes, thus demonstrating typical analog behavior, such as slow response and large stray X-rays. Furthermore, digital X-ray sources, which have been studied extensively using field electron emitters manufactured from nanometer-scale materials, provide fast and accurately controlled ultra-shot X-rays. This could usher in a new era of X-ray imaging in medical diagnosis and nondestructive inspections. Specifically, digital X-ray sources, with reduced X-ray dose, can significantly improve the temporal and spatial resolution of fluoroscopy and computed tomography. Recently, digital X-ray tube technologies based on carbon nanotubes, developed by Electronics and Telecommunications Research Institute, have been transferred to several companies and commercialized for dental imaging for the first time.