The effect of high dose rate transient gamma radiation on high-energy optical fibers

Bowden, Mike; Cheeseman, M. C.; Knowles, S. L.; Meister, D. C.; Pecak, S. N.; Potter, Kenneth

doi:10.1117/12.826281

Cited by 3 publications

(3 citation statements)

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“…The source of the luminescence was therefore most likely due to the gamma rays. Pure, high dose rate gamma sources have shown significantly higher levels of luminescence in previous studies 8 . Slow neutrons may have had a small additional contribution.…”

Section: Induced Light Emissionmentioning

confidence: 95%

Neutron testing of high-power optical fibers

et al. 2012

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A selection of commercially available high-power optical fibres have been characterised for radiation susceptibility in Sandia's Annular Core Research Reactor (ACRR). The fibres were subjected to a total gamma and neutron dose >2 Mrad(Si) in a 7 ms pulse. The neutron fluence was >10 15 n/cm 2 . Changes in the transmission characteristics of optical fibres carrying high energy, short duration laser pulses (power densities of around 1.5 GW/cm 2 ) were measured.All fibres survived at least two consecutive radiation exposures, showing typical transient transmission losses of around 20%. Post radiation exposure, the transmission characteristics returned to those of pristine fibres within one minute.

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Section: Induced Light Emissionmentioning

confidence: 95%

Neutron testing of high-power optical fibers

et al. 2012

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“…Beyond traditional communication, optical fibers have found extensive use in recent years in cutting-edge areas such as sensing [9][10][11], measurement [12,13], control [14,15], and data collection [16,17]. These applications extend to diverse environments, including high-energy radiation scenarios [18] like nuclear explosion diagnostics [19], internal monitoring of nuclear reactors [20][21][22], nuclear fuel reprocessing [23], disinfection of medical endoscopes [24,25], underwater fiber optic cable communication [26], and aerospace technology [27], among others.…”

Section: Introductionmentioning

confidence: 99%

Radiation Damage Mechanisms and Research Status of Radiation-Resistant Optical Fibers: A Review

Li,

Chen,

Zhou

et al. 2024

Sensors

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In recent years, optical fibers have found extensive use in special environments, including high-energy radiation scenarios like nuclear explosion diagnostics and reactor monitoring. However, radiation exposure, such as X-rays, gamma rays, and neutrons, can compromise fiber safety and reliability. Consequently, researchers worldwide are focusing on radiation-resistant fiber optic technology. This paper examines optical fiber radiation damage mechanisms, encompassing ionization damage, displacement damage, and defect centers. It also surveys the current research on radiation-resistant fiber optic design, including doping and manufacturing process improvements. Ultimately, it summarizes the effectiveness of various approaches and forecasts the future of radiation-resistant optical fibers.

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“…I NTENSE gamma-ray radiation facilities are widely used in radiation environment simulations and anti-radiation reinforcement of electronic devices [1]- [3]. Presently, several intense gamma-ray radiation facilities have been built in the world, such as Helia, Hermes-III, and Qiangguang-I [4]- [8].…”

Section: Introductionmentioning

confidence: 99%

Design of MITL for a 3.8-mV Gamma-Ray Radiation Facility

Zhao

Sun

et al. 2021

IEEE Trans. Plasma Sci.

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A systematic design of secondary magnetically insulated transmission line (MITL) for a 3.8-MV gamma-ray radiation facility is proposed. To produce appropriate dose rate of gamma-ray under the condition of reliable insulation, an equivalent circuit model including inductive cavity, MITL, and gamma-ray diode is established. Impedance and transmission time of MITL are detailly analyzed and optimally designed. More precisely, a particle-in-cell (PIC) model is developed to calculate loss-front velocity, operation impedance, and output parameters. The results are coincident with the circuit model and meet the design requirements.

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The effect of high dose rate transient gamma radiation on high-energy optical fibers

Cited by 3 publications

References 1 publication

Neutron testing of high-power optical fibers

Neutron testing of high-power optical fibers

Radiation Damage Mechanisms and Research Status of Radiation-Resistant Optical Fibers: A Review

Design of MITL for a 3.8-mV Gamma-Ray Radiation Facility

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