کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
460434 696341 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of a Time-to-Digital Converter and a coincidence map algorithm for TOF-PET applications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Optimization of a Time-to-Digital Converter and a coincidence map algorithm for TOF-PET applications
چکیده انگلیسی

This contribution describes the optimization of a multichannel high resolution Time-to-Digital Converter (TDC) in a Field-Programmable Gate Array (FPGA) initially capable of obtaining time resolutions below 100 ps for multiple channels. Due to its fast propagation capability it has taken advantage of the FPGA internal carry logic for accurate time measurements. Furthermore, the implementation of the TDC has been performed in different clock regions and tested with different frequencies as well, achieving improvements of up to 50% for a pair of channels. Moreover, since the TDC is potentially going to be used in a trigger system for Positron Emission Tomography (PET), the algorithm for coincidence identification has been subjected to tests in order to estimate the impact on occupied resources and the execution time. This time has been optimized, resulting in speed improvements of up to 20% while preserving occupied resources.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Systems Architecture - Volume 61, Issue 1, January 2015, Pages 40–48
نویسندگان
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