Results 1 to 10 of about 27,733 (206)

Fiber Optic Sensors for Harsh and High Radiation Environments in Aerospace Applications

Sensors, 2023
In the upcoming space revolutions aiming at the implementation of automated, smart, and self-aware crewless vehicles and reusable spacecraft, sensors play a significant role in the control systems.
Alberto Rovera, Alexandru Tancau, Nadia Boetti, Matteo D. L. Dalla Vedova, Paolo Maggiore, Davide Janner   +5 more
doaj   +3 more sources

Optical Filter-Embedded Fiber-Optic Radiation Sensor for Ultra-High Dose Rate Electron Beam Dosimetry

Sensors, 2021
FLASH radiotherapy is an emerging radiotherapy technique used to spare normal tissues. It employs ultra-high dose rate radiation beams over 40 Gy/s, which is significantly higher than those of conventional radiotherapy.
Dong-Hyeok Jeong, Manwoo Lee, Heuijin Lim, Sang-Koo Kang, Kyohyun Lee, Sang-Jin Lee, Hyun Kim, Woo-Kyung Han, Tae-Woo Kang, Kyoung-Won Jang   +9 more
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Online optical refractive index measurement in research reactor core [PDF]

EPJ Web of Conferences, 2021
There is a growing interest in fiber optic measurements for applications in radiation environments. Optical fiber sensors and diagnostics can monitor many parameters of interest inside a research reactor core.
Fourneau Gary, Agoyan Marion, Chemol Guy, Ladaci Ayoub, Maskrot Hicham, Destouches Christophe, Fourmentel Damien, Girard Sylvain, Boukenter Aziz   +8 more
doaj   +1 more source

EXPERIMENTAL STUDY OF OPTICAL POWER EFFECT ON THE STRUCTURE OF FIBER-OPTICAL DIFFUSER OBTAINED BY FIBER CORE MELTING [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper presents experimental findings of a fiber-optic diffuser structure formed by optical fiber melting. Method. An optical scheme of ytterbium fiber laser is demonstrated consisting of such main components as: a laser pump ...
Ianina D. Tokareva, Yuri A. Konin, Kirill A. Konnov, Sergey V. Varzhel, Andrey A. Dmitriev, Sofya D. Bochkova   +5 more
doaj   +1 more source

UV Sensor Based on Fiber Bragg Grating Covered with Graphene Oxide Embedded in Composite Materials

Sensors, 2020
Polymer–matrix composites degrade under the influence of UV radiation in the range of the 290–400 nm band. The degradation of polymer–matrix composites exposed to UV radiation is characterized by extensive aging of the epoxy matrix, resulting in ...
Piotr Lesiak, Karolina Bednarska, Krzysztof Małkowski, Łukasz Kozłowski, Anna Wróblewska, Piotr Sobotka, Kamil Dydek, Anna Boczkowska, Tomasz Osuch, Alicja Anuszkiewicz, Wojciech Lewoczko-Adamczyk, Henning Schröder, Tomasz Ryszard Woliński   +12 more
doaj   +1 more source

Measurement of Cerenkov Radiation Induced by the Gamma-Rays of Co-60 Therapy Units Using Wavelength Shifting Fiber

Sensors, 2014
In this study, a wavelength shifting fiber that shifts ultra-violet and blue light to green light was employed as a sensor probe of a fiber-optic Cerenkov radiation sensor. In order to characterize Cerenkov radiation generated in the developed wavelength
Kyoung Won Jang, Sang Hun Shin, Seon Geun Kim, Jae Seok Kim, Wook Jae Yoo, Young Hoon Ji, Bongsoo Lee   +6 more
doaj   +1 more source

Evaluation of the Detection Efficiency of LYSO Scintillator in the Fiber-Optic Radiation Sensor

Science and Technology of Nuclear Installations, 2014
The aim of this study was to develop and evaluate fiber-optic sensors for the remote detection of gamma rays in areas that are difficult to access, such as a spent fuel pool.
Chan Hee Park, Arim Lee, Rinah Kim, Joo Hyun Moon   +3 more
doaj   +1 more source

Fiber-Optic Sensor For The Quality Of Oil And Petroleum Products [PDF]

E3S Web of Conferences
The technical characteristics and performance of the equipment depend on the quality of petroleum products. Optical refractometric methods for determining the composition of oil based on refractive indices have become widespread. The main disadvantage of
Murashkina Tatiana, Badeeva Elena, Badeev Vladislav   +2 more
doaj   +1 more source

Few-sensory microwave photonic address measuring system for esophageal manometry

Физика волновых процессов и радиотехнические системы, 2019
In the modern development of high-resolution manometry, the catheter and its elements are used at various levels of examination and treatment of the patient, both in operative and long-term follow-up systems. Therefore, the approach to the catheter as an
A.F. Agliullin, V.V. Purtov, A.Zh. Sakhabutdinov, I.I. Nureev, A.A. Tyazhelova, L.M. Sarvarova, S.V. Vasiliev, I.U. Kurbiev, A.D. Proskuryakov, V.V. Kadushkin   +9 more
doaj   +1 more source

EXPERIMENTAL COMPARISON OF HOMODYNE DEMODULATION ALGORITHMS FOR PHASE FIBER-OPTIC SENSOR [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2015
Subject of Research. The paper presents the results of experimental comparative analysis of homodyne demodulation algorithms based on differential cross multiplying method and on arctangent method under the same conditions. The dependencies of parameters
M. N. Belikin, M. Y. Plotnikov, V. E. Strigalev, A. V. Kulikov, A. Y. Kireenkov   +4 more
doaj   +1 more source