Radiation-hardness measurements of high OH- content quartz fibres irradiated with 24 GeV protons up to 1.25 Grad
Makaleler > Tam Makale · 2008
Yazarlar: K. Cankocak, M. N. Bakirci, SERPİL ÇERÇİ, E. Gulmez, J. P. Merlo, Y. Onel, F. Ozok, I. SCHMIDT, Nasuf SÖNMEZ
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2008, cilt 585, ss 20-27
DOI: 10.1016/j.nima.m07.10.024
Özet
We investigated the darkening of two high OH- content quartz fibres irradiated with 24 GeV protons at the Cern PS facility IRRAD. The two tested fibres have a 0.6 mm quartz core diameter, one with hard plastic cladding (qp) and the other with quartz cladding (qq). These fibres were exposed at about 1.25 Grad in 3 weeks. The fibres became opaque below 380 nm and in the range 580-650 nm. The darkening under irradiation and damage recovery after irradiation as a function of dose and time are similar to what we observed with electrons. The typical attenuation at 455 nm are 1.44 +/- 0.22 and 2.20 +/- 0.15 dB/m at 100 Mrad for qp and qq fibres, respectively. The maximum damage recovery is also observed near this wavelength. (c) 2007 Elsevier B.V. All rights reserved.