Title :
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
fDate :
6/1/2006 12:00:00 AM
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;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2006.874073
