Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Il Hong Choi"'
Autor:
Hyong-Hu Park, Ji-Koon Park, Il-Hong Choi, Ye-Ji Heo, Kyo-Tae Kim, Si-Cheol Noh, Sang-Sik Kang
Publikováno v:
Journal of the Korean Society of Radiology. 10:597-602
Recent clinical field utilizes the aluminium filter in order to reduce the low-energy photons. However, the usage of the filter can cause adverse effect on the image quality because of the scattered dose that is generated by X-ray hardening phenomeno
Publikováno v:
Journal of the Korean Society of Radiology. 10:559-563
Recently, a barium(Ba) and an iodine(I) being studied as a conventional lead(Pb) alternatives of shielding material has excellent shieding rate, but the characteristic x-ray photons in the energy range near 30 keV line is released. In this study, wit
Publikováno v:
Journal of the Korean Society of Radiology. 10:133-138
This research is a study on the welfare satisfaction of radiological technologists in university hospital, and was conducted in order to analysis of welfare factors and improvements. The survey was conducted on radiological technologist of a universi
Publikováno v:
Journal of the Korean Society of Radiology. 10:81-87
In this study we proposed a texture feature analysis algorithm that distinguishes between a normal image and a diseased image using CT images of some fatty liver patients, and generates both Eigen images and test images which can be applied to the pr
Publikováno v:
Journal of the Korean Society of Radiology. 10:65-72
Therefore the job satisfaction of organizational members should be raised to cut down on their turnover rate. The purpose of this study was to examine the relationship of the general characteristics of radiological technologist-turned hospital manage
Autor:
Si Cheol Noh, Sang Hee Nam, Il Hong Choi, Kyo Tae Kim, Ji-Koon Park, Ye Ji Heo, Sang Sik Kang, Bong Jae Jung
Publikováno v:
Journal of the Korean Society of Radiology. 9:445-448
Recently there has been increasing interest in the filter to reduce the proportion of low-energy photons in the polychromatic X-ray, affect the quality of the image quality by X-ray hardening effect is a situation that has been overlooked. In this st
Publikováno v:
Journal of the Korean Society of Radiology. 8:429-433
In this study, the morphology and the x-ray quantum efficient of mercury oxide (HgO) and lead oxide (PbO) sensors derived by particle sedimentation method were discussed. In the pursuit of this purpose, we investigated the electrical characteristics
Publikováno v:
Journal of the Korean Society of Radiology. 8:383-387
In this paper, for a new detection system development with the better accurate dose evaluation and beam distribution imaging using the small field irradiation of linear accelerator, the compound semiconductor based detection sensors were fabricated a
Publikováno v:
Journal of the Korean Society of Radiology. 8:423-428
Digital X-ray imaging devices using a TFT based flat panel array has been used in medical field. But, recently, lots of research on the photon counting sensor has been reported. In this study, we evaluated the physical properties of the photoconducto
Publikováno v:
Journal of the Korean Physical Society. 65:351-354
In this study, Gd2O2S:Tb phosphor screen films were fabricated by using a special particle-inbinder sedimentation method. The phosphor particles used in this study were manufactured in two sizes, 2.5-μm and 5-μm. To evaluate luminescence efficiency