Results 1 to 10 of about 5,326 (282)

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   +6 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   +9 more sources

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

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   +5 more sources

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

open access: yesScience 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   +3 more
doaj   +4 more sources

Sapphire Fiber-optic Temperature Sensor Based on Black-body Radiation Law [PDF]

open access: yesProcedia Engineering, 2015
AbstractThe sapphire fiber-optic temperature sensor based on Black-Body radiation law, is a new technique of high-temperature measurement in extreme environment, which combines techniques of radiometric thermometry and optical-based temperature measurement. In this paper, a system is established and tested.
Wei, Wang, Xiaotian, Shi, Ying, Wang
exaly   +3 more sources

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

Research on measurement technology of optical fiber angle sensor based on MEA-BP [PDF]

open access: yesScientific Reports
High-voltage disconnectors operate under strong electromagnetic radiation for long periods, making it prone to incomplete opening and closing. Current electronic sensors used to detect their status are susceptible to electromagnetic interference, leading
Wang Lisha   +6 more
doaj   +2 more sources

Fiber-optic Cerenkov radiation sensor for proton therapy dosimetry

open access: yesOptics 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.
Bongsoo Lee   +2 more
exaly   +4 more sources

Feasibility of fiber-optic radiation sensor using Cerenkov effect for detecting thermal neutrons

open access: yesOptics Express, 2013
In this research, we propose a novel method for detecting thermal neutrons with a fiber-optic radiation sensor using the Cerenkov effect. We fabricate a fiber-optic radiation sensor that detects thermal neutrons with a Gd-foil, a rutile crystal, and a plastic optical fiber. The relationship between the fluxes of electrons inducing Cerenkov radiation in
Bongsoo Lee   +2 more
exaly   +3 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

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