Measurement of One-dimensional Photon Dose Distribution in Radiotherapy Dosimetry Using a High-resolution Fiber-optic Radiation Sensor

2007 ◽  
pp. 2008-2010
Author(s):  
Kyoung Won Jang ◽  
Dong Hyun Cho ◽  
Bongsoo Lee ◽  
Sin Kim ◽  
Hyosung Cho ◽  
...  
Keyword(s):  
High Resolution ◽  
Dose Distribution ◽  
Fiber Optic ◽  
Optic Radiation ◽  
One Dimensional ◽  
Radiation Sensor ◽  
Photon Dose ◽  
Radiotherapy Dosimetry

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.

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

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

Measurement of Two-Dimensional Photon Beam Distributions Using a Fiber-Optic Radiation Sensor for Small Field Radiation Therapy

2008 ◽  
Vol 55 (5) ◽  
pp. 2632-2636 ◽  
Author(s):  
Bongsoo Lee ◽  
Kyoung Won Jang ◽  
Dong Hyun Cho ◽  
Wook Jae Yoo ◽  
Sang Hun Shin ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Fiber Optic ◽  
Photon Beam ◽  
Small Field ◽  
Two Dimensional ◽  
Optic Radiation ◽  
Radiation Sensor ◽  
Field Radiation
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