Evaluation of gamma response ability of single-mode and multi-mode optical fibers with different dopants as dosimeter sensors

S Asgari; H Jafari; R Taheri Ghahrizjani; S A H Feghhi; M Bataee

doi:10.1016/j.apradiso.2022.110206

Evaluation of gamma response ability of single-mode and multi-mode optical fibers with different dopants as dosimeter sensors

Appl Radiat Isot. 2022 Jun:184:110206. doi: 10.1016/j.apradiso.2022.110206. Epub 2022 Mar 18.

Authors

S Asgari¹, H Jafari², R Taheri Ghahrizjani³, S A H Feghhi¹, M Bataee¹

Affiliations

¹ Radiation Application Department, Shahid Beheshti University, Tehran, Iran.
² Radiation Application Department, Shahid Beheshti University, Tehran, Iran. Electronic address: H_jafari@sbu.ac.ir.
³ Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran.

PMID: 35325649
DOI: 10.1016/j.apradiso.2022.110206

Abstract

Optical fiber is used as a tool for data transmission in radiation environments in many applications such as medical, plasma diagnostics, and space satellites. The optical transmission is affected by ionizing radiation, characterized by radiation-induced attenuation. This feature allows use as a dosimeter sensor. In this work, the gamma radiation responses of three types of single-mode and multi-mode fibers, with different dopants of erbium (Er), germanium (Ge), and phosphorus (P) were evaluated. Radiation-induced attenuation was measured by spectrophotometer in wavelength ranges of 400-700 nm. The Er-doped fiber had higher attenuation of 0.8 dB/m after 560 mGy total dose. There was a reasonable linear relationship between the amount of attenuation and absorbed dose in P-, Ge-, and Er-doped fibers.

Keywords: Dopant; Dosimeter; Gamma response; Multi-mode optical fiber; Radiation-induced attenuation.

MeSH terms

Erbium
Gamma Rays
Germanium*
Optical Fibers*
Radiation Dosimeters

Substances

Germanium
Erbium