Results 11 to 20 of about 31,642 (200)

Organic phosphor based fiber-optic sensor for detection of UV radiation [PDF]

Journal of Physics: Conference Series, 2021
Abstract The paper presents a simple and low-cost fiber-optic sensor for detection of UV radiation. A sensor construction consists of a silica capillary with a photoactive composition based on an organic phosphor, organic solvent and epoxyacrylate inside and a multimode optical fiber in contact with each other.
A S Matrosova, V A Ananyev, G A Pchelkin, D N Shurupov, S K Evstropiev, V M Volynkin, V V Demidov, N V Nikonorov   +7 more
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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

High sensitivity micro-fiber Mach-Zehnder interferometric temperature sensors with a high index ring layer [PDF]

, 2019
The influence of the high index ring layer (HIRL) in a tapered fiber Mach-Zehnder interferometer (MZI) on the interference observed, and thus on its potential applications in temperature sensing, has been investigated.
B. M. A. Rahman, Bae, Brunet, Chen, Chen, Dong Yan, Harris, Hu Zhang, Jiang, Kenneth T. V. Grattan, Li, Li, Liqiang Zhang, Liu, Lixia Xi, Nan-Kuang Chen, Takahashi, Tapetado, Tian, Wei, Weng, Xia Zhang, Xiaoguang Zhang, Xuan Li, Yaghobi, Yan, Yin, Yuqi Wu, Zhao, Zhen Tian, Zhu   +30 more
core   +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

Fiber-optic Cerenkov radiation sensor for proton therapy dosimetry

Optics Express, 2012
In proton therapy dosimetry, a fiber-optic radiation sensor incorporating a scintillator must undergo complicated correction processes due to the quenching effect of the scintillator. To overcome the drawbacks of the fiber-optic radiation sensor, we proposed an innovative method using the Cerenkov radiation generated in plastic optical fibers.
Jang, Kyoung Won, Yoo, Wook Jae, Shin, Sang Hun, Shin, Dongho, Lee, Bongsoo   +4 more
openaire   +3 more sources

Optical Birefringence Fiber Temperature Sensors in the Visible Spectrum of Light [PDF]

, 2017
This article describes experimental tests to determine PM fibers Panda style responses to a thermal source with different initial temperature. The aim of this study was to determine the sensitivity of a polarization maintaining fiber to the radiating
Dvořák, Filip, Kyselák, Martin, Maschke, Jan, Vlček, Čestmír   +3 more
core   +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