TY - JOUR
T1 - Do MELT or CONTIN programs accurately reveal the o-Ps lifetime distribution in polymers? II. Semicrystalline polymers
AU - Dlubek, G.
AU - Hübner, Ch
AU - Eichler, S.
PY - 1999/4/1
Y1 - 1999/4/1
N2 - Positron lifetime experiments of high statistical accuracy were performed for various polyethylene samples with different degrees of crystallinity (Xc = 43, 60, and 70%). Four lifetime components were resolved using the MELT, CONTIN or the discrete-term LIFSPECFIT routines. Two long-lived components appeared, their lifetimes and intensities varied systematically with Xc. τ4 arose from o-Ps annihilation in holes of the amorphous phase while τ3 may be attributed to crystals.
AB - Positron lifetime experiments of high statistical accuracy were performed for various polyethylene samples with different degrees of crystallinity (Xc = 43, 60, and 70%). Four lifetime components were resolved using the MELT, CONTIN or the discrete-term LIFSPECFIT routines. Two long-lived components appeared, their lifetimes and intensities varied systematically with Xc. τ4 arose from o-Ps annihilation in holes of the amorphous phase while τ3 may be attributed to crystals.
UR - http://www.scopus.com/inward/record.url?scp=0345072487&partnerID=8YFLogxK
U2 - 10.1002/(SICI)1521-396X(199904)172:2<303::AID-PSSA303>3.0.CO;2-C
DO - 10.1002/(SICI)1521-396X(199904)172:2<303::AID-PSSA303>3.0.CO;2-C
M3 - Journal articles
AN - SCOPUS:0345072487
SN - 0031-8965
VL - 172
SP - 303
EP - 315
JO - Physica Status Solidi (A) Applied Research
JF - Physica Status Solidi (A) Applied Research
IS - 2
ER -