Gamma-Probe for Locating the Source of Ionizing Radiation

  • Timur Khabibullin
  • Andrey Starikovskiy
  • Anastasia TolstayaEmail author
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 636)


The radionuclide diagnostics unit, described in the article, detects pathological changes of organs and systems of a person. The device is a portable detector of gamma rays that allows to diagnose superficial malignancies using radiopharmaceuticals injected into the body. The gamma probe uses crystal LaBr3:Ce as a scintillator and silicon photomultiplier SiPM as a photodetector. The focus of this paper is the improvement of the amplifier, which originally produced misshapen pulses unsuitable for energy discrimination. Using LTSPICE, a free circuit-modelling program, we performed extensive simulation of both the SiPM and the amplifier. From this work, we determined that high input impedance and unnecessarily high gain were the source of the distortion. Another amplifier better suited to the SiPM parameters was simulated and then prototyped.


Gamma-probe Cancer detection Lymph nodes Detector resolution SiPM Amplifier Collimator 



This work was supported by Competitiveness Growth Program of the Federal Autonomous Educational Institution of Higher Professional Education National Research Nuclear University MEPhI (Moscow Engineering Physics Institute).


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Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  • Timur Khabibullin
    • 1
  • Andrey Starikovskiy
    • 1
  • Anastasia Tolstaya
    • 1
    Email author
  1. 1.National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)MoscowRussia

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