• Journal of The Korea Institute of Healthcare Architecture
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• v.26 no.4
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• pp.7-14
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• 2020

Purpose: The purpose of this study is to provide basic information for the establishment of a Heavy Ion Therapy center by analyzing the cases of Heavy Ion Therapy devices, introducing the equipment and space composition of Heavy Ion Therapy equipments. Methods: This study is carried out by study the Heavy Ion Therapy, by figure out status of the installation of treatment centers around the world and by analyze the composition of Heavy Ion Therapy equipments and spaces through case studies. Results: The results of this study, which investigated the treatment of Heavy Ion Therapy and analyzed the plans of the five Heavy Ion Therapy centers, are summarized as follows. 1) Heavy Ion equipment requires a significant floor area. Vertical as well, many cross-sectional areas need to be secured for the construction of a delivery system. The Heavy Ion Therapy device should be built as a shielded wall because of the radiation leaking. Therefore, it is necessary to consist of a independent treatment center. 2) The size of Heavy Ion devices is getting smaller. Linac can be put into syncrotron. and the size of syncrotron, delivery system, and rotating-gantry is getting smaller. 3) Japan is often installed for treatment, and control rooms are integrated, while Europe has secured research space and each control room is separated. Implications: People are not familiar with the Heavy Ion Therapy. And the effectiveness of the treatment is not well promoted yet. Hopefully, more attention will be paid to the research involved in the Heavy Ion Therapy.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2006.06a
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• pp.473-474
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• 2006

We report on the rapid thermal annealing effect on the electrical, optical, and structural properties of IZO transparent conducting oxide films grown by box cathode sputtering (BCS). To investigate structural properties of rapid thermal annealed IZO films in $N_2$ atmosphere as a function of annealing temperature, syncrotron x-ray scattering experiment was carried out. It was shown that the amorphous structure of the IZO films was maintained until $400^{\circ}C$ because ZnO and $In_2O_3$ are immiscible and must undergo phase separation to allow crystallization. In addition, the IZO films grown at different Ar/$O_2$ ratio of 30/1.5 and 30/0 showed different preferred (222) and (440) orientation, respectively, with increase of rapid thermal annealing temperature. The electrical properties of the OLED with rapid thermal annealed IZO anode was degraded as rapid thermal annealing temperature of IZO increased. This indicates the amorphous IZO anode is more beneficial to make high-quality OLEDs.

• Proceedings of the Korean Vacuum Society Conference
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• 2006.08a
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• pp.166-166
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• 2006

• Journal of Astronomy and Space Sciences
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• v.17 no.1
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• pp.33-38
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• 2000

Synchrotron emission at 408 MHz and HI column density have been used to find an evidence for the relationship between the Galactic magnetic field and the gas density. The observational data of the brightness temperature and HI column density, $T_b(408)\;and \;N_{HI}$, near the galactic plane between galactic longitudes $l=62^{circ}\;and\;l=250^{\circ}$ show a clear linear correlation of $T_b(408)=A(l,b)+B\;N_{HI}$, where A(l, b)is a background and forground radiation at the galactic coordinate. We found $(1.4{pm}0.3)10^{-21}$ for the slope B, which describes the strength of the syncrotron radiation from the HI cloud, and agrees with the value for the MIlky Way obtained by Beuermann et al. (1985). We conclude therefore that a well defined nonthermal corelates with the HI column density originating from this HI cloud.

• 한국가시화정보학회:학술대회논문집
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• 2007.11a
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• pp.114-115
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• 2007

As a carrier of malaria and sneak of blood, mosquitoes are regarded as an unpleasant insect. However, there are novel phenomena that happen inside a mosquito. Among them, we focused on the blood sucking function of a female mosquito. The main objective of this study was to investigate the mosquito's pumping mechanism in order to resolve the problem encountered when we inject or transport biologic fluids into a micro-chip. To analyze the pumping mechanism, we visualized the blood sucking process inside a female mosquito. Flow characteristics of blood flow in a proboscis were investigated experimentally using a micro-PIV velocity field measurement technique. The anatomical variation of head, thorax, abdomen which work as pumps and valves, was visualized using the syncrotron X-ray micro-imaging technique.

• Proceedings of the Korean Society of Medical Physics Conference
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• 2002.09a
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• pp.32-34
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• 2002

Over the past two decades there has been a tremendous growth in the number of synchrotron radiation facilities in the world and also in Japan. The high flux and brightness radiation which derive from the third generation low emittance rings provide an ideal source for many applications in the medical sciences. The application of synchrotron radiation to medical imaging started in the early 80's in U.S.A, followed by European countries such as Germany and Russia. In Japan, researchs on intravenous coronary angiography started in 1884 at the Institute for High Energy Phisics(KEK) in Tsukuba. At present, it is the only application of syncrotron radiation which is at the stage of human study. In '90s, newer techniques such as phase and refraction contrast imaging appeared which are at the in vitro or animal study stage. Various types of x-ray CT have also been developed for three-dimensional imaging of the subjects. The present status of medical applications of synchrotron radiation in Japan is reviewed.