The positron distribution in a layered stack sample studied with the use of positron lifetime spectroscopy
✍ Scribed by Jerzy Dryzek; Paweł Horodek
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 402 KB
- Volume
- 269
- Category
- Article
- ISSN
- 0168-583X
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## SYNOPSIS A free volume probing technique, positron annihilation lifetime spectroscopy (PALS) is used to characterize miscible blends of amorphous polycarbonate with a semicrystalline copolyester at room temperature. The paper describes the analysis required to use the PALS technique to probe th
Positron lifetime measurements, performed in the temperature range 80-300 K, are reported for polyethylene (PE) and polytetrafluoroethylene (PTFE). The lifetime spectra have been analyzed using the data processing routines LIFSPECFIT and MELT. Two long-lived components appear, which are attributed t