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The Effect of Decreasing Aperture Diameter on Signal Transmission from the Scintillator to the Photomultiplier Tube Over a Wide Energy Range

Author

Listed:
  • Aleš Jančář

    (VF Nuclear, Czech Republic)

  • Zdeněk Matěj

    (Masaryk University, Czech Republic)

  • Evžen Losa

    (Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Czech Republic)

  • Michal Košťál

    (Research Centre Rez Ltd, Czech Republic)

  • Tomáš Czakoj

    (Research Centre Rez Ltd, Czech Republic)

  • Michal Jelínek

    (Institute of Scientific Instruments of the Czech Academy of Sciences, Czech Republic)

  • Břetislav Mikel

    (Institute of Scientific Instruments of the Czech Academy of Sciences, Czech Republic)

  • Zdeněk Kopecký

    (VF Nuclear, Czech Republic)

  • Filip Mravec

    (VF Nuclear, Czech Republic)

  • Jan Král

    (Masaryk University, Czech Republic)

Abstract

In this paper, we study the effect of decreasing aperture diameter on signal transmission from the scintillator to the PMT. The apertures have been inserted directly between the scintillator and the photomultiplier. Three different aperture diameters have been used over a wide energy range. A newly developed fast digital spectrometer has been utilized for experimental measurement in the radial channel of the VR-1 research reactor. The detector signals with and without inserted apertures have been measured and evaluated. The aim of our research was to determine the effect of the apertures on the spectral quality, energy range and the evaluated physical quantities.

Suggested Citation

Handle: RePEc:epw:physic:v:6:y:2024:i:5:id:11344
DOI: 10.24018/ejphysics.2024.6.5.344
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