Radiation responses of ultra-low loss pure-silica-core optical fibers in the visible to infrared domains

Girard, Sylvain; Morana, Adriana; Michele, Vincenzo De; Campanella, Cosimo; Vidalot, Jeoffray; Marin, Emmanuel; Boukenter, Aziz; Paillet, Philippe; Ouerdane, Y.

doi:10.1016/j.omx.2022.100191

Cited by 3 publications

(3 citation statements)

References 29 publications

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“…4 reports the spectral RIA acquired on the Vascade OF after a 4.2 kGy TID (dose rate being 14 Gy/s) and after 10 minutes from the irradiation end. The UV-visible part of the RIA spectrum, which has been less characterized in literature [21], is composed by a more stable band centered at 620 nm and at least one large OA band peaking in the UV below 350 nm. From Fig.…”

Section: A Spectral Ria Resultsmentioning

confidence: 99%

“…In particular, the Vascade OF was shown to be very radiation sensitive in the infrared (IR), even more than the radiation-sensitive P-doped fibers already in use in dosimetry applications, under certain irradiation conditions [22 -25]. Furthermore, this optical fiber showed an extremely fast recovery kinetics in the IR just after the irradiation: the RIA quickly returns to a low permanent RIA level, almost recovering completely the observed transient RIA [21]. This is a very different feature compared to today used radiosensitive phosphosilicate or aluminosilicate optical fibers that are characterized by no or very limited recovery at these wavelengths [22 -25].…”

Section: Introductionmentioning

confidence: 99%

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Radiation Monitoring With Radiosensitive Pure-Silica Core Ultralow Loss Optical Fiber

Weninger,

Morana,

Campanella

et al. 2024

IEEE Trans. Nucl. Sci.

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This article presents a new prospect for radiation detection exploiting the high radiation sensitivity of an ultra-low loss pure-silica core optical fiber (ULL-PSCF). This fiber exhibits very high transient X-ray radiation-induced attenuation (RIA) levels from UV to IR during irradiation while its RIA quickly returns to a low permanent level after irradiation. In this work, the RIA kinetics are investigated exposing the ULL-PSCF to multiple short irradiation runs at different dose rates. A pre-irradiation has been demonstrated to stabilize the response of the optical fiber and to make it even more appealing for radiation detection and monitoring. After this pre-irradiation treatment, the RIAs at 620 nm and 1310 nm in particular exhibit an ON/OFF behavior: the permanent RIA is nearly zero in-between irradiation and the transient RIA quickly increases up to dB/m level when the ULL-PSCF is exposed to X-rays. By varying the fiber length and adapting the interrogation setup, large ranges of doses and dose rates can be detected with this new class of optical fibers.

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Section: A Spectral Ria Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Radiation Monitoring With Radiosensitive Pure-Silica Core Ultralow Loss Optical Fiber

Weninger,

Morana,

Campanella

et al. 2024

IEEE Trans. Nucl. Sci.

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“…In this case though, a careful choice of light injection source is needed to obtain enough regeneration of the fiber transmission. Recently, multiple publications have been devoted to the study of a particular ultra-low-loss PSC fiber (ULL-PSCF) [19][20][21][22][23]. The RIA response of this OF differs from most other PSC fibers, which are among the most radiation-resistant under steady-state radiation [24,25].…”

Section: A Regenerating Detector: the Vascade Optical Fibermentioning

confidence: 99%

Distributed Optical Fiber-Based Radiation Detection Using an Ultra-Low-Loss Optical Fiber

Weninger,

Morana,

Ouerdane

et al. 2024

Radiation

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The combination of an ultra-low-loss optical fiber sensitive to ionizing radiation and an optical time domain reflectometer (OTDR) is investigated to explore the feasibility of a single-ended distributed radiation detector. The peculiarity of the tested fiber resides in its regenerative high radiation-induced attenuation (RIA) response in the infrared spectrum (1310 nm), which returns to a low value once the irradiation has ended, combined to its sensitivity, highly increasing with the dose rate. In this work, only some sections of the fiber line were irradiated with 100 kV X-rays at room temperature, to prove the spatially resolved radiation detection capabilities of the system. The transient RIA response of the fiber was characterized at different pre-irradiation doses. A pre-irradiation treatment was shown to stabilize the optical fiber response, improving its RIA vs. dose rate linearity and repeatability. This improved response, in terms of radiation quantification, comes at the cost of a lower detection threshold. This work lays the bases for a distributed radiation detector, with some capabilities in dose rate evaluation.

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Testing of a new ionizing radiation detector based on multimode optical fibers

BĂDIȚA,

MEREUȚĂ,

BURDUCEA

2023

Rom. Rep. Phys.

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"This paper presents our results investigation to evaluation effects of the electron beams radiation generated in multimode optical fibers at high irradiation doses in order to develop an ionizing radiation dosimeter. The radiation induced attenuation has been shown to exhibit a linear dependence as a function on the applied dose on a certain doses range and after the irradiation the optical fibers go through a “recovery process” during which the optical properties improve again. The surface morphological changes due to electron beam irradiation were investigated by Scanning Electron Microscopy and Atomic Force Microscopy."

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Radiation responses of ultra-low loss pure-silica-core optical fibers in the visible to infrared domains

Cited by 3 publications

References 29 publications

Radiation Monitoring With Radiosensitive Pure-Silica Core Ultralow Loss Optical Fiber

Radiation Monitoring With Radiosensitive Pure-Silica Core Ultralow Loss Optical Fiber

Distributed Optical Fiber-Based Radiation Detection Using an Ultra-Low-Loss Optical Fiber

Testing of a new ionizing radiation detector based on multimode optical fibers

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