• 跳过至主导航
  • 跳转到内容
  • 跳过至主侧边栏
  • 跳转到页脚

Digital PET Imaging Lab

  • About Us
    • Digital PET Imaging Laboratory
  • Team
    • Professors
    • PhD students
    • Master students
  • Research
    • Research Groups
      • Detector Group
      • Image Reconstruction Group
      • PET Application Group
      • Image Processing Group
      • System Integration Group
    • Research Focus
    • Papers and Patents
      • Papers
      • Patents
    • Awards
  • Education&Training
  • Events
    • INFIERI 2019
  • News
  • Donation&Cooperation
  • Join Us
    • Postdoctoral Recruitment
    • Contact Us
    • Public Services
  • Chinese
The current position: English / Mass - Energy

Mass- Energy

PET imaging requires the use of radionuclides to label the substances necessary for biological metabolism and inject them into the human body to characterize the physiological and biochemical activity as tracer metabolic intensity.

Radionuclides decay beta to produce positrons. Positrons travel very short distances in the organism, then they meet with the negative electrons in the organism and annihilate, resulting in a pair of gamma photons with equal energy in opposite directions. By detecting the information of gamma photons, the time and location of annihilation events can be inferred.




主侧边栏

PET成像过程

  • Mass - Energy
  • Ƴ Ray — Visible Light
  • Light — Electron
  • Analog — Digital
  • Data — Image