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Hyesu Jeon   Dr.  Graduate Student or Post Graduate 
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Hyesu Jeon published an article in November 2015.
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Sang Hun Shin

60 shared publications

Chung-Ang Univ. (Korea, Republic of)

3
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3
 
Publications
Article 0 Reads 0 Citations Performance Evaluation of a Multichannel All-In-One Phantom Dosimeter for Dose Measurement of Diagnostic X-ray Beam Hyesu Jeon, Wook Jae Yoo, Sang Hun Shin, Guwon Kwon, Mingeon... Published: 11 November 2015
Sensors, doi: 10.3390/s151128490
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
We developed a multichannel all-in-one phantom dosimeter system composed of nine sensing probes, a chest phantom, an image intensifier, and a complementary metal-oxide semiconductor (CMOS) image sensor to measure the dose distribution of an X-ray beam used in radiation diagnosis. Nine sensing probes of the phantom dosimeter were fabricated identically by connecting a plastic scintillating fiber (PSF) to a plastic optical fiber (POF). To measure the planar dose distribution on a chest phantom according to exposure parameters used in clinical practice, we divided the top of the chest phantom into nine equal parts virtually and then installed the nine sensing probes at each center of the nine equal parts on the top of the chest phantom as measuring points. Each scintillation signal generated in the nine sensing probes was transmitted through the POFs and then intensified by the image intensifier because the scintillation signal normally has a very low light intensity. Real-time scintillation images (RSIs) containing the intensified scintillation signals were taken by the CMOS image sensor with a single lens optical system and displayed through a software program. Under variation of the exposure parameters, we measured RSIs containing dose information using the multichannel all-in-one phantom dosimeter and compared the results with the absorbed doses obtained by using a semiconductor dosimeter (SCD). From the experimental results of this study, the light intensities of nine regions of interest (ROI) in the RSI measured by the phantom dosimeter were similar to the dose distribution obtained using the SCD. In conclusion, we demonstrated that the planar dose distribution including the entrance surface dose (ESD) can be easily measured by using the proposed phantom dosimeter system.
Article 2 Reads 0 Citations Feasibility study on the development of a fiber-optic gamma imaging probe Seunghan Hong, Wook Jae Yoo, Sang Hun Shin, Hyesu Jeon, Jae ... Published: 28 July 2015
Journal of the Korean Physical Society, doi: 10.3938/jkps.67.175
DOI See at publisher website
Article 0 Reads 1 Citation Feasibility Study on Development of a Fiber-Optic Dual Detector to Measure Beta- and Gamma-rays Simultaneously Seunghan Hong, Sang Hun Shin, Hyeok In Sim, Seon Geun Kim, H... Published: 01 February 2014
The Transactions of The Korean Institute of Electrical Engineers, doi: 10.5370/kiee.2014.63.2.284
DOI See at publisher website
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