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논문 기본 정보

자료유형
학술저널
저자정보
Su Jung An (Yonsei University) Hyun-il Kim (Yonsei University) Chae Young Lee (Yonsei University) Han Kyeol Song (Yonsei University) Chan Woo Park (Yonsei University) Young Hyun Chung (Yonsei University)
저널정보
대한전자공학회 IEIE Transactions on Smart Processing & Computing IEIE Transactions on Smart Processing & Computing Vol.4 No.5
발행연도
2015.10
수록면
305 - 310 (6page)

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초록· 키워드

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We propose a new concept for a depth of interaction (DOI) positron emission tomography (PET) detector based on dual-ended-scintillator (DES) readout for small animal imaging. The detector consists of lutetium yttrium orthosilicate (LYSO) arrays coupled with orthogonal wavelength-shifting (WLS) fibre placed on the top and bottom of the arrays. On every other line, crystals that are 2 mm shorter are arranged to create grooves. WLS fibre is inserted into these grooves. This paper describes the design and performance evaluation of this PET detector using Monte Carlo simulations. To investigate sensitivity by crystal size, five types of PET detectors were simulated. Because the proposed detector is composed of crystals with three different lengths, degradation in sensitivity across the field of view was also explored by simulation. In addition, the effect of DOI resolution on image quality was demonstrated. The simulation results proved that the devised PET detector with excellent DOI resolution is helpful for reducing the channels of sensors/electronics and minimizing gamma ray attenuation and scattering while maintaining good detector performance.

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Abstract
1. Introduction
2. Materials and methods
3. Results
4. Discussion and conclusion
References

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