DOSE-EFFECT IN GAMMA-IRRADIATED POLYETHYLENE STUDIED BY POSITRON-ANNIHILATION LIFETIME TECHNIQUE

被引：5

作者：

ELSAYED, AMA ^{[1
]}

ABDELHADY, EE ^{[1
]}

RIZK, RAM ^{[1
]}

MOHSEN, M ^{[1
]}

机构：

[1] AIN SHAMS UNIV,FAC SCI,DEPT PHYS,CAIRO,EGYPT

来源：

RADIATION PHYSICS AND CHEMISTRY | 1994年 / 44卷 / 1-2期

关键词：

D O I：

10.1016/0969-806X(94)90098-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Commercial high-density polyethylene (HDPE) samples were irradiated by gamma-rays with doses ranging from 10 to 200 kGy. Positron annihilation lifetime measurements were performed to study the effect of gamma-radiation on the structure of polyethylene. The lifetime tau3, associated with the pick-off process, in which the positron in o-Ps annihilates an electron from the surrounding material, and its intensity I3 are measured as a function of gamma-dose. It can be concluded that the effect of gamma-irradiation on polyethylene results in intensive formation of new bonds or crosslinking at doses ranging from 10 to 100 kGy. Saturation of I3 for the irradiated HDPE at doses ranging from 100 to 200 kGy may indicate the achievement of a structural stability.

引用

页码：31 / 33

页数：3

共 50 条

[31] POSITRON ANNIHILATION IN PROTON-IRRADIATED AND GAMMA-IRRADIATED SODIUMCHLORIDE CRYSTALS
ACHE, HJ
WILLIAMS, TL
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1969, (SEP): : NU15 - &
[32] A BIOMEMBRANE PHASE-TRANSITION STUDIED BY POSITRON-ANNIHILATION LIFETIME METHOD
BALUCH, S
CIRAK, J
BALGAVY, P
STUDIA BIOPHYSICA, 1990, 136 (01): : 65 - 70
[33] Dehydration of gypsum studied by positron annihilation lifetime technique
Mohsen, M
Gomaa, EAH
Schut, H
van Veen, A
POSITRON ANNIHILATION: ICPA-11 - PROCEEDINGS OF THE 11TH INTERNATIONAL CONFERENCE ON POSITRON ANNIHILATION, KANSAS CITY, MISSOURI, USA, MAY 1997, 1997, 255-2 : 402 - 404
[34] Dehydration of gypsum studied by positron annihilation lifetime technique
Mohsen, M.
Gomaa, E.A.H.
Schut, H.
van Veen, A.
Materials Science Forum, 1997, 255-257 : 402 - 404
[35] Photoinitiated crosslinking polyethylene studied by positron annihilation technique
Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
He Jishu, 2006, 1 (11-14):
[36] RADIATION EFFECTS ON ORGANIC SOLIDS AS STUDIED BY POSITRON-ANNIHILATION TECHNIQUE
ITO, Y
TABATA, Y
RADIATION RESEARCH, 1974, 59 (01) : 281 - 281
[37] COMPATIBILIZED LINEAR LOW-DENSITY POLYETHYLENE ISOTACTIC POLYPROPYLENE BLENDS STUDIED BY POSITRON-ANNIHILATION LIFETIME SPECTROSCOPY
FLARIS, V
ZIPPER, MD
SIMON, GP
HILL, AJ
POLYMER ENGINEERING AND SCIENCE, 1995, 35 (01): : 28 - 33
[38] POSITRON LIFETIME STUDIES IN GAMMA-IRRADIATED ORGANIC-CRYSTALS
JEAN, YC
ACHE, HJ
JOURNAL OF PHYSICAL CHEMISTRY, 1978, 82 (06): : 656 - 659
[39] A POSITRON-ANNIHILATION STUDY OF THE EFFECTS OF GAMMA-IRRADIATION ON THE STRUCTURE OF POLYETHYLENE
GOLDANSKII, AV
ONISHCHUK, VA
SHANTAROVICH, VN
MUSAELYAN, IN
HIGH ENERGY CHEMISTRY, 1985, 19 (01) : 8 - 12
[40] POSITRON-ANNIHILATION LIFETIME MEASUREMENT OF PURE IRON IRRADIATED BY FISSION AND FUSION NEUTRONS
KURAMOTO, E
TAKENAKA, M
PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES, 1989, 65 (05): : 116 - 119

← 1 2 3 4 5 →