New:

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

Analogue CDB spectrometer



Analogue CDB spectrometer

  • Detectors: Ortec coaxial HPGe detectors, relative efficiency 30 %.
  • resolution: 1.0 KeV (at 511 keV)
  • coincidence count rate: 600 coinc./s (1 MBq 22 Na positron source)


CDB spectrum for well annealed Mg (99.99%), i.e. sum of energies of annihilation gamma rays plotted versus the difference of these energies