Results 211 to 220 of about 4,377 (250)

Fabrication and optimization of a fiber-optic radiation sensor for proton beam dosimetry

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2011
Abstract In this study, we fabricated a fiber-optic radiation sensor for proton therapy dosimetry and measured the output and the peak-to-plateau ratio of scintillation light with various kinds of organic scintillators in order to select an organic scintillator appropriate for measuring the dose of a proton beam.
K.W. Jang, W.J. Yoo, J.K. Seo, J.Y. Heo, J. Moon, J.-Y. Park, E.J. Hwang, D. Shin, S.-Y. Park, H.-S. Cho, B. Lee   +10 more
exaly   +2 more sources

Fiber optic sensors for radiation dosimetry

SPIE Proceedings, 1994
Fiberoptic sensors are employed for the measurement of many physical quantities. 1,2 Fiberoptic sensors using glass or lead glass optical fibers have been shown in radiation detectors3,4 or dosimeters.5,6 It has been shown7-9 that the main effect of the interaction of ionizing radiation (typically, ? -rays from a Co60 source) with optical fibers is the
Luciano DiFiore, Aniello Grado, Paolo Russo   +2 more
openaire   +1 more source

Novel fiber optic nuclear radiation sensor

SPIE Proceedings, 1997
The principle andstructure of a novel fiber optic nuclear radiation sensor (mainly measuthig gamma ray) based on the principle of radiation-induced loss are presented in this paper. Its great advantages over conventional nuclear radiation sensors are discussed as well.
Dexing Sun, Song Qiu, Yanbiao Liao, Shurong Lai, Zongmao Wang, Xin Qiao   +5 more
openaire   +1 more source

Understanding the Radiation Effects on Fiber Optic Sensors

2022
In this dissertation, the effects of radiation (gamma, neutron or mixed gamma and neutron) on optical fiber sensors are studied and new techniques for real-time measurement of radiation-induced macroscopic changes in optical fibers are presented. It is crucial among the research and development efforts in the nuclear energy field to conduct experiments
openaire   +1 more source

A fiber-optic twin sensor for dose measurements in radiation therapy

Optical Review, 1996
The developed fiber-optic twin sensor allowsin- vivo dose measurement in the tissue of the patient’s body. It consists of two radiation-sensitive fibers. The radiation-induced attenuations of these fibers are used to determine the dose absorbed in tissue.
Harald Bueker, Friedrich Wolfgang Haesing, Frank Pfeiffer, Hermann-Joseph Schmitz   +3 more
openaire   +1 more source

An innovative extrinsic fiber optic sensor for real-time radiation monitoring

Optical Fiber Sensors Conference 2020 Special Edition, 2021
Radiochromic film dosimetry is a well-established technique particularly suitable for off-line dose measurements. We propose an innovative method for the determination of the dose in real-time with radiochromic films based on optoelectronic instrumentation.
Fienga F., Casolaro P., Vaiano P., Di Capua F., Campajola L., Breglio G., Cutolo A., Consales M., Buontempo S., Cusano A.   +9 more
openaire   +2 more sources

Fiber-optic temperature sensor based on internally generated thermal radiation

Applied Optics, 1981
This paper presents a theoretical and experimental study of a method of sensing temperature with optical fibers with the radiation thermally generated within the fiber. Using quartz fibers it is possible to read temperatures in the range from room temperature to over 1000 degrees C.
M, Gottlieb, G B, Brandt
openaire   +2 more sources

Neutron radiation effects on Fabry–Perot fiber optic sensors

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2003
Abstract Nuclear Power Plant operators and Generation IV plant designers are considering advanced data transmission and measurement systems to improve system economics and safety, while concurrently addressing the issue of obsolescence of instrumentation and control systems.
Hanying Liu, Joseph Talnagi, Don W. Miller   +2 more
openaire   +1 more source

Fiber Optic Sensors as Dosimeters for Ionizing Radiation

1987
The starting point of our investigations was the impact of ionizing radiation emerging from natural sources on fiber optic waveguides. Some of them showed a great sensitivity resulting in a darkening of the glass when exposed to ionizing radiation. The idea was to use this effect (unwanted in optical communication- systems) for a new type of radiation ...
G. Sehrig, W. Gaebler
openaire   +1 more source

An Introduction to Radiation Effects on Optical Components and Fiber Optic Sensors

2007
We review the effects of ionizing radiation on various types of optical components including optical fiber sensors and summarize some of their applications in particular environments where the presence of energetic radiation is a concern.
Berghmans, Francis, Brichard, B., Fernandez, A., Gusarov, A., Van Uffelen, M., Girard, S.   +5 more
openaire   +2 more sources