scholarly journals Fabrication and performance evaluation of one-dimensional fiber-optic radiation sensor for X-ray profile irradiated by clinical linear accelerator

2007 ◽  
Vol 16 (1) ◽  
pp. 33-38 ◽  
Keyword(s):  
Performance Evaluation ◽  
Linear Accelerator ◽  
Fiber Optic ◽  
Optic Radiation ◽  
One Dimensional ◽  
X Ray ◽  
Radiation Sensor ◽  
And Performance

MEASUREMENTS OF HIGH ENERGY X-RAY DOSE DISTRIBUTIONS USING MULTI-DIMENSIONAL FIBER-OPTIC RADIATION DETECTORS

2008 ◽  
Vol 22 (11) ◽  
pp. 797-802 ◽  
Author(s):  
KYOUNG WON JANG ◽  
DONG HYUN CHO ◽  
SANG HUN SHIN ◽  
BONGSOO LEE ◽  
SOON-CHEOL CHUNG ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Fiber Optic ◽  
Radiation Detectors ◽  
High Energy ◽  
Two Dimensional ◽  
Optic Radiation ◽  
Dose Distributions ◽  
Detector Arrays ◽  
One Dimensional ◽  
X Ray

In this study, we have fabricated multi-dimensional fiber-optic radiation detectors with organic scintillators, plastic optical fibers and photo-detectors such as photodiode array and a charge-coupled device. To measure the X-ray dose distributions of the clinical linear accelerator in the tissue-equivalent medium, we have fabricated polymethylmethacrylate phantoms which have one-dimensional and two-dimensional fiber-optic detector arrays inside. The one-dimensional and two-dimensional detector arrays can be used to measure percent depth doses and surface dose distributions of high energy X-ray in the phantom respectively.

Development of One-dimensional Fiber-Optic Radiation Sensor for Measuring Dose Distributions of High Energy Photon Beams

2007 ◽  
Vol 14 (5) ◽  
pp. 351-354 ◽  
Author(s):  
Bongsoo Lee ◽  
Kyoung Won Jang ◽  
Dong Hyun Cho ◽  
Wook Jae Yoo ◽  
Hyung Shik Kim ◽  
...  
Keyword(s):  
Fiber Optic ◽  
High Energy ◽  
High Energy Photon ◽  
Optic Radiation ◽  
Photon Beams ◽  
Energy Photon ◽  
Dose Distributions ◽  
One Dimensional ◽  
Radiation Sensor

High Resolution One-Dimensional Dose Measurement Using a Movable Miniature Fiber-Optic Radiation Sensor

2006 ◽  
Vol 321-323 ◽  
pp. 992-995 ◽  
Author(s):  
Bong Soo Lee ◽  
Dong Hyun Cho ◽  
Soon Cheol Chung ◽  
Jeong Han Yi ◽  
Kyung Won Chang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Dose Distribution ◽  
Fiber Optic ◽  
Light Output ◽  
High Energy ◽  
Optic Radiation ◽  
Plastic Optical Fiber ◽  
Silicon Photodiode ◽  
One Dimensional ◽  
Radiation Sensor

The aim of this study is to develop a new method to measure one-dimensional dose distribution of high-energy electron using a miniature fiber-optic radiation sensor. The measurements are made by a thin plastic optical fiber with an organic scintillating sensor tip. The scintillating light in the visible wavelength range is guided to a silicon photodiode by plastic optical fiber in order to convert light output to electrical signal. The one-dimensional spatial dependence of elctron beam is measured by moving the sensor tip with uniform speed. It is shown that this fiber-optic radiation sensor has better spatial resolution than conventional ion chamber and it needs much less time to measure one-dimensional dose distribution in the high radiation fields.

scholarly journals Measurement of Gamma-Rays Induced Luminescence Generated in a Sapphire Based Fiber-Optic Radiation Sensor

2016 ◽  
Vol 04 (08) ◽  
pp. 1503-1506 ◽  
Author(s):  
Young Beom Song ◽  
Kyoung Won Jang ◽  
Hye Jin Kim ◽  
Dong Eun Lee ◽  
Mingeon Kim ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Fiber Optic ◽  
Optic Radiation ◽  
Radiation Sensor

scholarly journals Gamma-ray Spectroscopy Using Inorganic Scintillator Coated with Reduced Graphene Oxide in Fiber-Optic Radiation Sensor

Photonics ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 543
Author(s):  
Jin Ho Kim ◽  
Seunghyeon Kim ◽  
Siwon Song ◽  
Taeseob Lim ◽  
Jae Hyung Park ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gamma Ray ◽  
Fiber Optic ◽  
Energy Spectra ◽  
Optic Radiation ◽  
Radiation Sensor ◽  
Reduced Graphene ◽  
Gamma Ray Spectroscopy ◽  
Inorganic Scintillators

In this study, we developed a remote gamma-ray spectroscopy system based on a fiber-optic radiation sensor (FORS) that is composed of an inorganic scintillator coated with reduced graphene oxide (RGO) and a plastic optical fiber (POF). As a preliminary experiment, we measured the transmitted light intensities using RGO membranes of different thicknesses with different wavelengths of emitted light. To evaluate the FORS performance, we determined the optimal thickness of the RGO membrane and measured the amounts of scintillating light and gamma energy spectra using radioactive isotopes such as 60Co and 137Cs. The amounts of scintillating light from the RGO-coated inorganic scintillators increased, and the energy resolutions of the gamma-ray spectra were enhanced. In addition, the gamma-ray energy spectra were measured using different types of RGO-coated inorganic scintillators depending on the lengths of the POFs for remote gamma-ray spectroscopy. It was expected that inorganic scintillators coated with RGO in FORS can deliver improved performance, such as increments of scintillating light and energy resolution in gamma-ray spectroscopy, and they can be used to identify nuclides remotely in various nuclear facilities.

scholarly journals Characteristics of fiber-optic radiation sensor for passive scattering proton beams

2017 ◽  
Vol 12 (11) ◽  
pp. P11015-P11015 ◽  
Author(s):  
J. Son ◽  
M. Kim ◽  
J. Jeong ◽  
Y. Lim ◽  
S.B. Lee ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Optic Radiation ◽  
Proton Beams ◽  
Radiation Sensor ◽  
Passive Scattering
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