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POSITRON ANNIHILATION SPECTROSCOPY

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Figure

Figure 2. Decay scheme of 22 Na
Figure 3. Principle of PAS/LT method with 22 Na positron source and a simple fast-fast PAS/LT spectrometer: D1,D2 – detectors, CFDD – constant-fraction differential discriminator, DEL – delay line, FCC – fast coincidence unit, TAC – time-to-amplitude conve

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