New:
PLRF 19 code for fitting of positron lifetime - binaries are available for download.
Analogue CDB spectrometer
Analogue CDB spectrometer
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Detectors: Ortec coaxial HPGe detectors, relative efficiency 30 %.
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resolution: 1.0 KeV (at 511 keV)
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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