Zobrazeno 1 - 10
of 169
pro vyhledávání: '"Wook Jae Yoo"'
Autor:
Hyesu Jeon, Wook Jae Yoo, Sang Hun Shin, Guwon Kwon, Mingeon Kim, Hye Jin Kim, Young Beom Song, Kyoung Won Jang, Won Sik Youn, Bongsoo Lee
Publikováno v:
Sensors, Vol 15, Iss 11, Pp 28490-28501 (2015)
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 bea
Externí odkaz:
https://doaj.org/article/acfd36c1c73747678f4087a2f134fa80
Autor:
Bongsoo Lee, Guwon Kwon, Sang Hun Shin, Jaeseok Kim, Wook Jae Yoo, Young Hoon Ji, Kyoung Won Jang
Publikováno v:
Sensors, Vol 15, Iss 11, Pp 29003-29014 (2015)
In this study, prototype ultra-thin fiber-optic dosimeters were fabricated using organic scintillators, wavelength shifting fibers, and plastic optical fibers. The sensor probes of the ultra-thin fiber-optic dosimeters consisted of very thin organic
Externí odkaz:
https://doaj.org/article/5251bd1cb7664c2b9424df6a717d9fd3
Publikováno v:
Sensors, Vol 15, Iss 9, Pp 21265-21279 (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 t
Externí odkaz:
https://doaj.org/article/6c6ef1c8692542268fc9eb41648a7740
Publikováno v:
Sensors, Vol 15, Iss 5, Pp 11012-11026 (2015)
In this study, we have studied the effects of temperature and X-ray energy variations on the light output signals from two different fiber-optic sensors, a fiber-optic dosimeter (FOD) based on a BCF-12 as a plastic scintillating fiber (PSF) and a fib
Externí odkaz:
https://doaj.org/article/c739d8f32a2444958cd964fb41bf9fb6
Autor:
Wook Jae Yoo, Hyeok In Sim, Sang Hun Shin, Kyoung Won Jang, Seunghyun Cho, Joo Hyun Moon, Bongsoo Lee
Publikováno v:
Sensors, Vol 14, Iss 10, Pp 18823-18836 (2014)
A fiber-optic sensor system using a multiplexed array of sensing probes based on an aqueous solution of sodium chloride (NaCl solution) and an optical time-domain reflectometer (OTDR) for simultaneous measurement of temperature and water level is pro
Externí odkaz:
https://doaj.org/article/70f4e2f0fa5648159562708d0e5d752c
Autor:
Kyoung Won Jang, Sang Hun Shin, Seon Geun Kim, Jae Seok Kim, Wook Jae Yoo, Young Hoon Ji, Bongsoo Lee
Publikováno v:
Sensors, Vol 14, Iss 4, Pp 7013-7025 (2014)
In this study, a wavelength shifting fiber that shifts ultra-violet and blue light to green light was employed as a sensor probe of a fiber-optic Cerenkov radiation sensor. In order to characterize Cerenkov radiation generated in the developed wavele
Externí odkaz:
https://doaj.org/article/021f42eb40b744ecaf3ddb841110ea6d
Autor:
Wook Jae Yoo, Sang Hun Shin, Dayeong Jeon, Seunghan Hong, Hyeok In Sim, Seon Geun Kim, Kyoung Won Jang, Seunghyun Cho, Won Sik Youn, Bongsoo Lee
Publikováno v:
Sensors, Vol 14, Iss 4, Pp 6305-6316 (2014)
A miniature fiber-optic dosimeter (FOD) system was fabricated using a plastic scintillating fiber, a plastic optical fiber, and a multi-pixel photon counter to measure real-time entrance surface dose (ESD) during radiation diagnosis. Under varying ex
Externí odkaz:
https://doaj.org/article/2105e412491a401e95af5c683d9aeef5
Autor:
Bongsoo Lee, Byung Gi Park, Jang-Yeon Park, Dayeong Jeon, Ki-Tek Han, Sang Hun Shin, Jinsoo Moon, Kyoung Won Jang, Wook Jae Yoo
Publikováno v:
Sensors, Vol 12, Iss 5, Pp 6404-6414 (2012)
A T-shaped fiber-optic phantom-dosimeter system was developed using square scintillating optical fibers, a lens system, and a CMOS image camera. Images of scintillating light were used to simultaneously measure the transverse and longitudinal distrib
Externí odkaz:
https://doaj.org/article/36c8cde84847458cb637da41cc0799d4
Autor:
Bongsoo Lee, Byung Gi Park, Jang-Yeon Park, Ki-Tek Han, Jinsoo Moon, Wook Jae Yoo, Kyoung Won Jang, Jeong Ki Seo
Publikováno v:
Sensors, Vol 11, Iss 10, Pp 9549-9559 (2011)
A 2-channel embedded infrared fiber-optic temperature sensor was fabricated using two identical silver halide optical fibers for accurate thermometry without complicated calibration processes. In this study, we measured the output voltages of signal
Externí odkaz:
https://doaj.org/article/8eb843672bb64327b3bd14f23697afec
Autor:
Mingeon Kim, Kyoung Won Jang, Young Beom Song, Bongsoo Lee, Sang Hun Shin, Sung Won Hwang, Wook Jae Yoo, Hyejin Kim
Publikováno v:
Journal of the Korean Physical Society. 71:842-847
As a feasibility study on the development of a fiber-optic radiation sensor for proton therapy dosimetry, we characterized light transmissions of various commercial optical fibers such as silica and plastic based optical fibers by the irradiation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3768a1c1a330305566850cf5acc7dbc2
https://doi.org/10.3938/jkps.71.842
https://doi.org/10.3938/jkps.71.842