Radiothermoluminescence studies of polymer solids. Final report, 1 August 1985-31 July 1988

Technical Report · Sat Apr 01 04:00:00 EST 1989

OSTI ID:5484393

Buckley, C

Radiothermoluminescence (RTL) involves irradiating a solid at low temperature (77K) with ionizing radiation and observing luminescence when heating the sample at a constant rate (10 K/min). Glow peaks are observed at characteristic temperatures which, for polymers, are diagnostic of the onset of thermally activated molecular motions. A scanning electron microscope (SEM) was modified to irradiate polymer samples with medium energy (5-30 keV) electrons. This SEM-RTL device is more convenient and reliable than other techniques which utilize remote radiation sources, though information is confined to the near surface regions of the sample. In particular, the oxygen-free environment of the SEM-RTL experiment permitted observation of high temperature relaxations (up to 150 C or 423 K) for the first time in a number of thermoplastics.

• Research Organization: Northwestern Univ., Evanston, IL (USA)
• OSTI ID: 5484393
• Report Number(s): AD-A-209036/3/XAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360605* -- Materials-- Radiation Effects
BEAMS
DOCUMENT TYPES
ELECTRON BEAMS
ELECTRON MICROSCOPES
ELEMENTS
ENERGY
HEAT
IONIZING RADIATIONS
LEPTON BEAMS
LUMINESCENCE
MATERIALS
MICROSCOPES
MOLECULES
MOTION
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN
PARTICLE BEAMS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL RADIATION EFFECTS
PLASTICS
POLYMERS
PROGRESS REPORT
RADIATION EFFECTS
RADIATIONS
RADIOLUMINESCENCE
RADIOTHERMOLUMINESCENCE
RELAXATION
SAMPLING
SOLIDS
SURFACES
SYNTHETIC MATERIALS
THERMOLUMINESCENCE
THERMOPLASTICS