LOW-TEMPERATURE PHOSPHORESCENCE OF LOW-DENSITY POLYETHYLENE INDUCED BY FAST ELECTRONS

Authors
WYSOCKI S KAROLCZAK S MAZUREK L SPERKA A
Citation
S. Wysocki et al., LOW-TEMPERATURE PHOSPHORESCENCE OF LOW-DENSITY POLYETHYLENE INDUCED BY FAST ELECTRONS, Radiation physics and chemistry, 46(1), 1995, pp. 11-16
Citations number
22
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Radiation physics and chemistry → ACNP
ISSN journal
0969806X
Volume
46
Issue
1
Year of publication
1995
Pages
11 - 16
Database
ISI
SICI code
0969-806X(1995)46:1<11:LPOLPI>2.0.ZU;2-N
Abstract
Phosphorescence of low density polyethylene induced by 6 MeV electrons was observed in the temperature region 10-285 K. Decay of phosphoresc ence at temperatures below gamma-relaxation region follows monoexponen tial equation. Above this transition, for T greater than or equal to 1 69 K kinetics can be described by two term relation. At low temperatur es phosphorescence life time tau(T) is temperature independent while a t higher ones tau(T) exhibits strong temperatures dependence. Time res olved emission, spectrum at T = 20 K is presented. Tentative conclusio ns are postulated.