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
- 2020.10
- 수록면
- 2,339 - 2,345 (7page)
- DOI
- https://doi.org/10.1016/j.net.2020.03.027
이용수
초록· 키워드
오류제보하기
Radiation imaging systems consisting of a large number of channels greatly benefit from multiplexing methods to reduce the number of channels with minimizing the system complexity and development cost. In conventional pixelated radiation detector modules, such as anger logic, is used to reduce a large number of channels that transmit signals to a data acquisition system. However, these methods have limitations of electrical noise and distortion at the detector edge. To solve these problems, a multiplexing concept using a digital signal encoding technique based on a time delay method for signals from detectors was developed in this study.
The digital encoding multiplexing (DEM) method was developed based on the time-over-threshold (ToT) method to provide more information including the activation time, position, and energy in one-bit line. This is the major advantage of the DEM method as compared with the traditional ToT method providing only energy information.
The energy was measured and calibrated by the ToT method. The energy resolution and coincidence time resolution were observed as 16% and 2.4 ns, respectively, with DEM. The position was successfully distributed on each channel. This study demonstrated the feasibility that DEM was useful to reduce the number of detector channels
목차
등록된 정보가 없습니다.
참고문헌 (20)
참고문헌 신청
B. J. Pichler / 2006 / Performance test of an LSO-APD detector in a 7-T MRI scanner for simultaneous PET/MRI / J. Nucl. Med 47:639~647
P. Dokhale / 2009 / Performance measurements of a SSPM-LYSO-SSPM detector module for small animal positron emission tomography / IEEE Nuclear Science Symposium and Medical Imaging Conference Record
J. H. Jung / 2010 / Development of a position decoder circuit for PET consisting of GAPD arrays / Nucl. Instrum. Methods A 631:310~315
W. Hu / 2010 / A simple and improved digital timing method for positron emission tomography / Nucl. Instrum. Methods A 622:219~224
K. B. Kim / 2015 / Signal transmission with long cable for design of PET detector for hybrid PET-MRI / Trans. Nucl. Sci 62:2010~2016
P. Dokhale / 2009 / Performance measurements of a SSPM-LYSO-SSPM detector module for small animal positron emission tomography / IEEE Nuclear Science Symposium and Medical Imaging Conference Record
J. H. Jung / 2010 / Development of a position decoder circuit for PET consisting of GAPD arrays / Nucl. Instrum. Methods A 631:310~315
W. Hu / 2010 / A simple and improved digital timing method for positron emission tomography / Nucl. Instrum. Methods A 622:219~224
K. B. Kim / 2015 / Signal transmission with long cable for design of PET detector for hybrid PET-MRI / Trans. Nucl. Sci 62:2010~2016
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