Time-to-Digital Converter Based on FPGA With Multiple Channel Capability

被引：46

作者：

Torres, J. ^{[1
]}

Aguilar, A. ^{[1
]}

Garcia-Olcina, R. ^{[1
]}

Martinez, P. A. ^{[1
]}

Martos, J. ^{[1
]}

Soret, J. ^{[1
]}

Benlloch, J. M. ^{[2
]}

Conde, P. ^{[2
]}

Gonzalez, A. J. ^{[2
]}

Sanchez, F. ^{[2
]}

机构：

[1] Univ Valencia, Commun & Digital Syst Design Grp DSDC, Valencia 46010, Spain

[2] Univ Politecn Valencia, CSIC, CIEMAT, Inst Instrumentat Mol Imaging I3M, Valencia 46022, Spain

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2014年 / 61卷 / 01期

关键词：

Delay lines; field programmable gate arrays; positron emission tomography; time measurement;

D O I：

10.1109/TNS.2013.2283196

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This contribution describes an accurate approach implementing a Time-to-Digital Converter using a Field-Programmable Gate Array (FPGA) device. Time differences with a FWHM better than 100 ps for 24 pairs of channels working simultaneously have been achieved. This was possible through the proper management of FPGA internal resources and by an accurate device calibration process minimizing the effect of temperature and voltage fluctuations. The system calibration results and the time differences between multiple channels are presented. The current approach suggests the possibility of carrying out precise Time of Flight (TOF) measurements with, for instance, Positron Emission Tomography (PET) systems.

引用

页码：107 / 114

页数：8

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