| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1829114 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2008 | 8 Pages |
Abstract
We investigated the darkening of two high OH-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±0.221.44±0.22 and 2.20±0.15dB/m at 100 Mrad for qp and qq fibres, respectively. The maximum damage recovery is also observed near this wavelength.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
K. Cankoçak, M.N. Bakırcı, S. Çerçi, E. Gülmez, J.P. Merlo, Y. Onel, F. Özok, I. Schmidt, N. Sönmez,