Radiation-hardness measurements of high OH- content quartz fibres irradiated with 24 GeV protons up to 1.25 Grad

Cankoçak, Kerem; Bakirci, M.N.; ÇERÇİ, Salim; Gülmez, E.; Merlo, J.P.; Onel, Y.; Özok, F.; Schmidt, I.; Sönmez, N.

doi:10.1016/j.nima.2007.10.024

Radiation-hardness measurements of high OH- content quartz fibres irradiated with 24 GeV protons up to 1.25 Grad

Cankoçak K., Bakirci M., ÇERÇİ S., Gülmez E., Merlo J., Onel Y., ...Daha Fazla

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, cilt.585, sa.1-2, ss.20-27, 2008 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 585 Sayı: 1-2
Basım Tarihi: 2008
Doi Numarası: 10.1016/j.nima.2007.10.024
Dergi Adı: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.20-27
Anahtar Kelimeler: Attenuation, Fibre, Quartz, Radiation
Yıldız Teknik Üniversitesi Adresli: Evet

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. © 2007 Elsevier B.V. All rights reserved.