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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.12
- 수록면
- 575 - 579 (5page)
- DOI
- 10.4283/JMAG.2024.29.4.575
이용수
초록· 키워드
오류제보하기
A depth of interaction (DOI) detector was developed to improve the spatial resolution of positron emission tomography (PET) systems with magnetic resonance imaging (MRI) for small animals. The detector uses a silicon-based optical sensor that is not affected by magnetic fields and can be used in MRI systems. The design includes a two-layer scintillation pixel array with different reflectors for each layer such that the intensity and peak area of the signal detected by the optical sensor differs for each layer. A spectrum of the photoelectric peaks as a function of the energy was constructed by irradiating the scintillator block with Na-22 gamma radiation of 511 keV and by collecting the light generated by the silicon photomultiplier (SiPM) optical sensor. By analyzing the areas of the two photoelectric peaks separately, the DOI layer could be identified. The use of this detector is expected to enable excellent spatial resolution to be achieved in all areas of the field of view, and to produce images with excellent quality.
목차
1. Introduction
2. Materials and Methods
3. Results
4. Discussion and Conclusions
References
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