Abstract
Measurements of the intensity of emission and induced optical absorption at 400–750 nm in KU-1 quartz fibers were performed under pulsed irradiation in a BARS-6 reactor (pulse duration, 80 μs; dose per pulse, up to 5×1012 neutrons/cm2 (E>0.2 MeV); dose rate, up to 105 Gy/s). The nondelayed emission component is due to the Cerenkov radiation, the weak relaxation component has a relaxation time of ∼150±50 μs, and the radiation-induced optical absorption reaches a value of 2.5×10−4 cm−1 (relaxation time, 600–1200 μs). A nonlinear dependence of the Cerenkov radiation on the dose rate and the presence of the relaxation emission component and the transient optical absorption may be associated with an optical inhomogeneity of glass induced by the high-power reactor irradiation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T. Shikama, T. Kakuta, M. Narui, et al., J. Nucl. Mater. 212–215, 421 (1994).
R. Tohmon, Y. Shimogaichi, H. Mizuno, Y. Ohki, et al., Phys. Rev. Lett. 62, 1388 (1989).
W. Schneider and U. Babst, Proc. SPIE 506, 189 (1984).
Author information
Authors and Affiliations
Additional information
__________
Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 26, No. 6, 2000, pp. 32–35.
Original Russian Text Copyright © 2000 by Demenkov, Plaksin, V. Stepanov, P. Stepanov, Chernov.
Rights and permissions
About this article
Cite this article
Demenkov, P.V., Plaksin, O.A., Stepanov, V.A. et al. Transient optical phenomena in quartz fibers under high-power pulsed reactor irradiation. Tech. Phys. Lett. 26, 239–240 (2000). https://doi.org/10.1134/1.1262804
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1262804