Published January 2012 | Version v1
Journal article Metadata-only

Research of digital constant fraction discriminator in PET system

Creators

  • 1. Beijing Engineering Research Center of Radiographic Techniques and Equipment (China)
  • 2. Key Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing (China)
  • 3. The College of Nuclear Technology and Automation Engineering, Chengdu University of Technology (China)

Description

The research on digital constant fraction discriminator of spike pulse signal in PET detector is introduced. Based on FPGA technique, rapid signal's time information is extracted via DCFD algorithm after a high-speed ADC digitization. Experiment results show that time resolution of DCFD is 772 ps, which meets the requirement of time measurement in PET system well. (authors)

Additional details

Publishing Information

Journal Title
Nuclear Electronics and Detection Technology
Journal Volume
32
Journal Issue
1
Journal Page Range
p. 32-35, 77
ISSN
0258-0934

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
46041398
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
ALGORITHMS; ANALOG-TO-DIGITAL CONVERTERS; DIGITAL SYSTEMS; INFORMATION; POSITRON COMPUTED TOMOGRAPHY; PULSES; RADIATION DETECTORS; SIGNALS; TIME MEASUREMENT; TIME RESOLUTION; VELOCITY
Descriptors DEC
COMPUTERIZED TOMOGRAPHY; DIAGNOSTIC TECHNIQUES; ELECTRONIC EQUIPMENT; EMISSION COMPUTED TOMOGRAPHY; EQUIPMENT; MATHEMATICAL LOGIC; MEASURING INSTRUMENTS; RESOLUTION; TIMING PROPERTIES; TOMOGRAPHY

Optional Information

Notes
8 figs., 7 refs.