New:

PLRF 19 code for fitting of positron lifetime - binaries are available for download.

Analogue positron-lifetime spectrometer



Detector part of spectrometer

  • fast-fast setup
  • detectors: Photonis XP2020/Q photomultipliers equipped cyllindrical with BaF2 scintillators
  • electronics: analogue modules NIM (Ortec, Fast-Comm Canberra)
  • timing resolution: 160 ps (FWHM 22Na)
  • coincidence count rate: 100/s (1.5 MBq 22Na)

A detailed description of spectrometer:

F. Bečvář, J. Čížek, L. Lešták, I. Novotný, I. Procházka, F. Šebesta: "A High-Resolution BaF2 Positron-Lifetime Spectrometer and Experience with Its Long-Term Exploitation", Nuclear Instruments and Methods in Physics A 443, 557-577 (2000).


NIM electronic for positron lifetime spectrometer