Measurement of Space Dose Distribution during Exposure Micro Computed Tomography (μ-CT) for Scattering Rays

Abstract

Non-invasive technique CT, called automated computed tomography, is used to detect lesion of a patient when diagnosing human body. Information obtained from CT plays an important role in assembling 3 dimensional images. Recently, new equipment, operated by CT, is required which can be appliable to physical and biological research. In accordance to this quest, micro-CT is invented that produce more detail and concrete information. Images supplied by CT are even more detailed and concrete, so it contributes much to the development of biology and polymer material engineering field. However, there has been little reliable reports regarding measuring information of space dose distribution about exposure dose limit of users operating micro-CT. In addition, little reports regarding space dose distribution of exposure has been known about unwanted diffraction light produced by usage of micro-CT. The exterior of micro-CT is covered by lead, which is for removing exposure of diffraction light. Thus, even if it is good enough to prevent exposure of diffraction light, consistent management of equipment will be required as time goes by and equipment are getting old as well. We measured space dose distribution regarding exposure of diffraction light of users operating micro-CT directly. Therefore, we suggest that proper management should be necessary for users operating micro-CT not to be exposed by unwanted diffraction light.Keyword: micro-CT , micro-CT space dose distribution, micro-CT operate exposure dose, micro-CT secondary exposure 요약 전산화단층촬영장치(Computed Tomography:CT)등장은 인체의 검사 시에 비 침습적인 검사로서 환자의 병변을 발

Volume Change of Spiral Computed Tomography due to the Changed in the Parameters

“…전산화단층촬영장치(Computed Tomography :CT) 등장은 인체의 검사 시에 비침습적인 검사로서 환자의 병변을 발견하는데 사용된다 [3] . CT가 지금처럼 임상에서 매우 주요한 영상장비가 되기까지 에는 지난 20년 동안에 두 가지 커다란 기술의 진보 덕분이다 [4] [6]- [9] .…”