Results 1 to 10 of about 31,642 (200)

Simple and Low-cost Fiber-optic Sensors for Detection of UV Radiation [PDF]

open access: yesTelfor Journal, 2012
In this paper two simple and low-cost fiberoptic sensors for detection of UV radiation are presented. A U-shaped sensor covered with an UV marker for UV radiation detection and a fiber-optic sensor with one end covered with powder from a mercury lamp are
M. B. Živanov   +5 more
doaj   +3 more sources

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

open access: yesSensors, 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   +9 more
doaj   +2 more sources

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

open access: yesSensors, 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   +5 more
doaj   +3 more sources

Evaluation of ARM tethered-balloon system instrumentation for supercooled liquid water and distributed temperature sensing in mixed-phase Arctic clouds [PDF]

open access: yesAtmospheric Measurement Techniques, 2019
A tethered-balloon system (TBS) has been developed and is being operated by Sandia National Laboratories (SNL) on behalf of the U.S. Department of Energy's (DOE) Atmospheric Radiation Measurement (ARM) User Facility in order to collect in situ ...
D. Dexheimer   +10 more
doaj   +4 more sources

Development of a Small-Sized, Flexible, and Insertable Fiber-Optic Radiation Sensor for Gamma-Ray Spectroscopy [PDF]

open access: yesSensors, 2015
We fabricated a small-sized, flexible, and insertable fiber-optic radiation sensor (FORS) that is composed of a sensing probe, a plastic optical fiber (POF), a photomultiplier tube (PMT)-amplifier system, and a multichannel analyzer (MCA) to obtain the ...
Wook Jae Yoo   +5 more
doaj   +2 more sources

A novel fiber optic temperature sensor based on CCT measurement and tipped with a PDMS-YAG:Ce phosphor mixture [PDF]

open access: yesiScience
Summary: This paper presents a novel fiber-optic temperature sensor based on correlated color temperature (CCT) measurement. The sensor is formed by a homogeneous mixture of polydimethylsiloxane (PDMS) and cerium-doped yttrium aluminum garnet (YAG:Ce ...
Jan Jargus   +5 more
doaj   +2 more sources

Distributed fiber optic radiation sensors [PDF]

open access: yesSafety of Nuclear Waste Disposal, 2021
Abstract. The international research efforts focused on the development of radiation sensors based on optic fibers have their origins in the 1970s (Evans et al., 1978). Generally, the lightweight fiber optic sensors are immune to electromagnetic field interference and high voltages making them deployable in harsh environments at hard to reach areas ...
Wosniok, Aleksander, Krebber, Katerina
openaire   +2 more sources

Numerical Analysis of Radiation Effects on Fiber Optic Sensors [PDF]

open access: yesSensors, 2021
Optical fiber sensors (OFS) are a potential candidate for monitoring physical parameters in nuclear environments. However, under an irradiation field the optical response of the OFS is modified via three primary mechanisms: (i) radiation-induced attenuation (RIA), (ii) radiation-induced emission (RIE), and (iii) radiation-induced compaction (RIC).
Sohel Rana   +3 more
openaire   +3 more sources

Online optical refractive index measurement in research reactor core [PDF]

open access: yesEPJ 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   +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]

open access: yesНаучно-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   +5 more
doaj   +1 more source

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