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Development of Multichannel Digital Pulse Processingg Platform for recording time of arrival : 입자도달시간 검출을 위한 다채널 디지털 펄스 처리기 개발

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Authors

김상협

Advisor
서종모
Major
공과대학 전기·컴퓨터공학부
Issue Date
2017-02
Publisher
서울대학교 대학원
Keywords
Time-to-digital Convertertime of arrivaltime-of-flightphase shifted clock
Description
학위논문 (석사)-- 서울대학교 대학원 : 전기·컴퓨터공학부, 2017. 2. 서종모.
Abstract
Applications to measure accurate time intervals of sub-nano second resolution become popular as sensor and detector technology develops rapidly in the field such as nuclear physics, bio-medical nuclear medicine diagnosis (PET, gamma cameras), time-of-flight measurement and range finding area. As a result, a demand is increasing for digital pulse-processing platform that simultaneously records time of arrival, or time-to-digital converter (TDC), with single-shot accuracy from multiple channels. In this thesis, a multichannel, high timing resolution time-to-digital converter with single-shot accuracy is presented. For low-cost system and flexible reconfiguration, Field Programmable Gate Array (FPGA) is used, and adjustable phase shifted clock scheme is proposed to ensure single-shot accuracy while holding ability to implement multiple channels, which is one of benefits of the phase shifted clock scheme. A TDC system is built based on the proposed architecture. Testing and characterization was done on the system to evaluate the performance of timing accuracy, single-shot capability, timing jitter, Differential Non-Linearity (DNL), Allan deviation (Time base stability) and system throughput.
Language
English
URI
https://hdl.handle.net/10371/123217
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