STRUCTURE AND DOSE-RATE EFFECTS ON OPTICAL RADIATION HARDNESS IN SCINTILLATOR POLYMERS

被引：3

作者：

TAYLOR, AG

HARMON, JP

机构：

[1] UNIV FLORIDA,DEPT MAT SCI & ENGN,215 WILLIAMSON HALL,GAINESVILLE,FL 32611

[2] UNIV FLORIDA,DEPT PHYS,GAINESVILLE,FL 32611

来源：

RADIATION PHYSICS AND CHEMISTRY | 1993年 / 41卷 / 1-2期

关键词：

OPTICAL POLYMERS; DOSE RATE; DOSE; ANNEALABLE COLOR CENTERS; TRANSMISSION; PERMEABILITY;

D O I：

10.1016/0969-806X(93)90047-X

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：

The effects of varying ionizing gamma irradiation doses and dose rates on the radiation hardness of two optical polymers were examined. Polystyrene (PS) showed increased transmission loss with increased doses up to 7 Mrads at a constant dose rate. Poly(isobutyl methacrylate) (PiBMA) showed increasing transmission loss up to 4 Mrads, beyond which dose it showed very little change. For a constant dose of 10 Mrads at different rates, PS experienced increased transmission loss with decreased rates over the range of 43 Mrads/day to 0.9 Mrads/day, while PiBMA showed decreased damage over the range of 0.94 Mrads/day to .06 Mrads/day.

引用

页码：115 / 119

页数：5