Radiation damage and light transmission studies on air core light guides

Author

Akgun, U. ; Bruecken, P. ; Ayan, A.S. ; Duru, F. ; Olson, J. ; Albayrak, E.A. ; Gülmez, E. ; Mestvirishvili, A. ; Onel, Y. ; Schmidt, I.

Author_Institution

Iowa Univ., Iowa City, IA, USA

Volume

53

Issue

3

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

1547

Lastpage

1550

Abstract

This report summarizes the radiation damage and the light transmission efficiency studies done on air core light guides with three different types of reflective material: two types of aluminized Mylar and a highly reflective plastic film from 3M called Radiant Mirror Film. The variations in light transmission efficiencies of these reflective materials have been studied with respect to the wavelengths of the incident light. The light transmission with one type of aluminized Mylar, which shows better reflectivity in UV range, deteriorated 14% after 10 Mrad of γ-ray irradiation from a 9.5 kCurie ¹³⁷Cs source. Light guides with the other type of aluminized Mylar and Radiant Mirror Film do not seem to be affected from radiation, and they show superior light transmission efficiency in the visible region.

Keywords

gamma-ray effects; light transmission; nuclear electronics; optical films; radioactive sources; ¹³⁷Cs source; Radiant Mirror Film; air core light guides; aluminized Mylar; gamma-ray irradiation; highly reflective plastic film; light transmission efficiency; radiation damage; radiation hardness; reflective material; visible region; Interference; Magnetic cores; Magnetic films; Mirrors; Optical films; Optical polymers; Optical refraction; Plastic films; Reflectivity; Shape; Air core light guide; HEM; aluminized mylar; light guide; light transmission; radiation hardness; reflective film;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2006.874073

Filename

1645069