• KLA journal
• /
• v.45 no.11 s.354
• /
• pp.48-50
• /
• 2004

1959년 이승만 대통령이 원자로 기공식에 참석, 우리나라 원자력시대의 개막을 알리는 역사적인 시삽을 한 지가 반세기전의 일이다. 이후 국내 원자력 기술수준은 "하나로"라는 연구용 원자로를 완공하는 등 세계적으로 Top10안에 꼽히며, 2010년까지 세계 5위(G5)권 수준으로의 진입을 목표로 하고 있다. 이러한 국내 원자력 기술발전의 원동력은 무엇이었을까. 혹 지난 50여년간 빠르게 변화하는 정보환경에 끊임없이 도전하며 다양한 정보서비스를 개발해온 "한국원자력연구소 기술정보실"에서 그 답을 찾을 수 있지 않을까.

• The Science & Technology
• /
• v.6 no.12 s.55
• /
• pp.10-30
• /
• 1973

과학기술처는 지난 11월29일 상우 한국원자력학회 및 한국원자력 연구소와 공동으로 에너지 개발 및 환경관리에 관한 심포지움을 가졌다. 원자력연구소에서 열린 이 심포지움은 한국에 있어서의 에너지 전망과 원자력사업의 진흥을 모도하기 위한 것으로 에너지 부문과 환경관리 부문으로 나누어 각부별로 연구발표가 있었다.

• The Science & Technology
• /
• v.8 no.12 s.79
• /
• pp.23-26
• /
• 1975

정부조직에서 민영화된지 3년을 맞은 한국원자력연구소는 개편이래 운영의 자율화와 연구요건의 충족화를 위해 그 정지작업을 마무리짓고 국책적으로 요구되는 본격연구ㆍ개발사업에 진입했다. 한국원자력연구소는 1973년 10월 이후의 유류파동을 계기로 야기된 에너지 위기에 대처하기 위한 종합적 에너지 개발, 특히 원자력발전에 대한 연구 개발에 박차를 가하고 있으며 아직도 원자력사업에 대한 우리나라의 연륜은 일잔 하지만 개척자적인 입장에서 상당히 괄목할만한 진전을 보았다.

• Proceedings of the Korean Radioactive Waste Society Conference
• /
• 2016.10a
• /
• pp.305-306
• /
• 2016

• Journal of Radiation Industry
• /
• v.4 no.4
• /
• pp.353-357
• /
• 2010

Silver nanoparticles (AgNPs) can be used in the areas such as integrate circuit, cell electrode and antimicrobial deodorant. In this study, AgNPs have been prepared by using $AgNO_3$ aqueous solution in the carboxymethyl cellulose (CMC) hydrogel. CMC powders were dissolved in deionized water, and then irradiated by a gamma-ray with a radiation dose of 50 kGy to make CMC hydrogel. CMC hydrogels were dipped into $1.0{\times}10^{-2}M$ $AgNO_3$ solution for 1 hour. After that, the swollen hydrogels were irradiated by gamma-ray for the formation of AgNPs. The characteristics of silver nanoparticles in the CMC hydrogels were monitored by UV-Vis and the morphological study and dispersed coefficient of particles were investigated by FE-SEM/EDX. It was observed that the sodium salt in the CMC is crucial to the formation of silver nanoparticle. Finally, antibacterial tests indiacted that the hydrogel containing silver nanoparticle has antibacterial activity.

• Journal of Radiation Industry
• /
• v.4 no.4
• /
• pp.385-389
• /
• 2010

In this study, the effect of the concentration of carboxymethylcellulose (CMC) solution on the degradation by irradiation was investigated. The CMC solutions with different concentrations of 3%, 4%, 5%, 6% and 7% were irradiated at the doses of 5, 10, 15, 20, 25 and 30 kGy with gamma ray or electron beam, and the viscosity of CMC solution was measured. The viscosity of the CMC solutions was decreased with an increase in the irradiation dose, but the extent of the degradation by an irradiation was found to be decreased with an increase of the CMC concentration in the solution. The dependency of the irradiation sources showed that an electron beam radiation had degraded the CMC less severely than gamma ray.

• Journal of Radiation Industry
• /
• v.2 no.1
• /
• pp.43-51
• /
• 2008

Radiation technology is currently used in a number of industrial processes such as sterilization, cross linking of polymer, food irradiation, rubber vulcanization in the tire manufacturing, contaminated medical waste, etc. Gamma ray and electron beam are the key examples of well-established economical applications of radiation processes. The purpose of this paper is to review the recent technological trends and activities for radiation processes in order for the industrial end users to better understand, and obtain useful information about the technology. It is clear that the radiation processing technology has potential for a variety of the industrial applications.

• Journal of Radiation Industry
• /
• v.12 no.4
• /
• pp.343-348
• /
• 2018

Preliminary study was perfomed to develop a biocompatible filter material using radiation energy. Electrosppined PLLA nano sheets were surface-modificated with hydrophilic groups(acrylic group) by using radiation. The physico-chemical and morphological characteristics of modified PLLA sheets were measured by ATR, SEM, contact angle, and hydrophilic (acryl group) introduction rate (TBO). As a result, there was no morphological(fiber structure) structure change due to radiation, and it was confirmed that an acrylic group was successfully introduced onto PLLA fiber sheet by radiation.

• Journal of Radiation Industry
• /
• v.12 no.4
• /
• pp.349-353
• /
• 2018

Metronidazole (MD), which is used as an antibiotic, is largely used as an oral and skin application agent, and has inhibiting effect on the production of the fungus causing malodor. However, the maximum drug inclusion concentration is 0.75% of skin ointment in commercially available. In this study, hydrogels containing high concentration of metronidazole were prepared by using radiation crosslinking technique based on biocompatible polymers, and release characteristics and antimicrobial properties were evaluated. This study was preliminary carried out to investigate whether it could be used effectively as antibacterial dressing materials.

• Journal of Radiation Industry
• /
• v.4 no.4
• /
• pp.381-384
• /
• 2010

In this study, the microbial safety and mechanical properties of xeno-bone graft material irradiated were investigated during the storage. Xeno-bone graft of the deminerlized bone matrix in carboxy-methyl-cellulose was gamma-irradiated and was cultured in PCA and PDA agar to check microbial contamination. Total aerobic bacteria and fungi were not detected in the irradiated and non-irradiated sample stored in accelerator at $30^{\circ}C$ for 10 months. Viscosity of CMC treated gamma irradiation was also not changed by holding period.