Optimization of the Scintillator Size for Positron Lifetime Measurements

Optimization of the Scintillator Size for Positron Lifetime Measurements

Optimization of the measurement condition for positron annihilation lifetime spectroscopy (PALS) is discussed from the viewpoint of non-destructive "on-site" material inspection. Numerical analysis based on a least-squares estimation and experiments with various sizes of BaF2 scintillators...

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Veröffentlicht in:Journal of physics. Conference series 2013-06, Vol.443 (1), p.12099-4
Hauptverfasser: Yamawaki, M, Kobayashi, Y, Hattori, K, Watanabe, Y
Format: Artikel
Sprache:eng
Schlagworte:
Barium fluorides
Inspection
Least squares method
Numerical analysis
Onsite
Optimization
Physics
Positron annihilation
Positrons
Scintillation counters
Spectroscopy
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Zusammenfassung:Optimization of the measurement condition for positron annihilation lifetime spectroscopy (PALS) is discussed from the viewpoint of non-destructive "on-site" material inspection. Numerical analysis based on a least-squares estimation and experiments with various sizes of BaF2 scintillators by conventional PALS suggested that the use of relatively large BaF2 scintillators enables on-site material inspection by PALS with reasonable accumulation time and time resolution.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/443/1/012099