인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The spatial resolution of small animal positron emission tomography/magnetic resonance imaging (PET/MRI) detectors for operating in a high magnetic field, which use very small and thin scintillation pixels, is degraded at the periphery of the field of view (FOV). To solve this problem, we designed a detector that measures the depth of interaction (DOI) when gamma rays, a form of electromagnetic radiation, interact with scintillation pixels. The detector consists of four layers of quasi-block scintillators with photosensors with no signal distortion in a magnetic field at both ends of each layer, and the location of scintillation events was determined using a lookup table and maximum likelihood position estimation (MLPE). DETECT2000 simulation was performed to evaluate the performance of the designed detector. A lookup table was created using the light signals collected from the photosensors, and the location was determined by comparing it with new signals with reference to the MLPE. As a result, the discrimination accuracy was excellent at 92.0%. The application of this detector to small animal PET/MRI is expected to deliver outstanding spatial resolution.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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UCI(KEPA) : I410-151-26-02-094397434