RADIATION-INDUCED THERMOLUMINESCENCE FOR IRRADIATED POLYMERS

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Proc. Japan Conf. Radioisotopes

OSTI ID:4698648

Nakai, Y; Inomo, H; Matsuda, K; Ikenaga, M; Kimura, K

Glow curves of radiation-induced thermoluminescence for various polymers were investigated under several conditions. Samples were irradiated at --196 deg C and warmed up by a heater. The luminescence from the sample was detected by a photomultiplier tube. Irradiation and measurements were carried out in air. For polypropylene, after 10/sup 4/ rad, the glow curve has peaks at --170 deg C and -- 130 deg C. The luminescent intensity increases with the dose. At 10/sup 7/ rad, saturation is observed, and the giow curve has one peak at --176 deg C. When the sample is exposed to uv or daylight after irradiation, luminescent intensity decreases. For polyethylene after various doses, the glow curves have peaks at -- 170 deg , -120 deg , and --40 deg C. Saturation is observed at 10/sup 6/ rad. Saturated hydrocarbons with the same main chain as polyethylene have glow curves of the same shape. The glow curve for polystyrene has one peak at -180 deg C. The glow curve for nylon has two peaks at -180 deg and --130 deg C. The maximum luminescent intensity is observed at 10/sup 6/ rad. Luminescent intensity decreases rapidly with time after irradiation. (A.G.W.)

• Research Organization: Japanese Assn. for Radiation Research on Polymers
• NSA Number: NSA-17-030134
• OSTI ID: 4698648
• Journal Information: Proc. Japan Conf. Radioisotopes, Journal Name: Proc. Japan Conf. Radioisotopes Vol. Vol: 5th, No. 3
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

AMIDES
GENERAL AND MISCELLANEOUS
HEATING
HYDROCARBONS
IRRADIATION
LIGHT
LOW TEMPERATURE
LUMINESCENCE
MEASURED VALUES
NYLON
PHOTOMULTIPLIERS
POLYETHYLENES
POLYMERS
POLYSTYRENE
PROPYLENE
RADIATION DOSES
TEMPERATURE