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JAEA Reports

Simulator for materials testing reactors

Takemoto, Noriyuki; Sugaya, Naoto; Otsuka, Kaoru; Hanakawa, Hiroki; Onuma, Yuichi; Hosokawa, Jinsaku; Hori, Naohiko; Kaminaga, Masanori; Tamura, Kazuo*; Hotta, Koji*; et al.

JAEA-Technology 2013-013, 44 Pages, 2013/06

JAEA-Technology-2013-013.pdf:4.42MB

A real-time simulator for operating both a reactor and irradiation facilities of a materials testing reactor, Simulator of Materials Testing Reactors, was developed for understanding reactor behavior and upskilling in order to utilize for a nuclear human resource development and to promote partnership with developing countries which have a plan to introduce nuclear power plant. The simulator is designed based on the JMTR (Japan Materials Testing Reactor) and it simulates operation, irradiation tests and various kinds of anticipated operational transients and accident conditions caused by the reactor and irradiation facilities. The development of the simulator was sponsored by the Japanese government as one of the specialized projects of advanced research infrastructure in order to promote basic as well as applied researches. This report summarizes the simulation model, hardware specification and operation procedure of the simulator.

Journal Articles

Hexyl methacrylate-based monolithic columns prepared by radiation-induced polymerization

Ueki, Yuji; Umemura, Tomonari*; Iwashita, Yoshikazu*; Hotta, Hiroki*; Odake, Tamao*; Tsunoda, Kinichi*; Katakai, Akio; Tamada, Masao

JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 58, 2007/02

In late years, the studies on monolithic columns, which consist of porous material with through-pore of a few micrometer dimensions, have been vigorously performed for rapid and high-resolution separations. Monolithic capillary columns for reversed-phase liquid chromatography were directly prepared by $$gamma$$ ray-induced polymerization of hexyl methacrylate (HMA) and ethylene dimethacrylate in the fused silica capillaries, 0.25 mm in inner diameter. High separation efficiency of the monolithic columns were realized when the columns were prepared in the condition of 10 kGy irradaiation, total monomer concentration of 20% inclusive 25% crosslinker. The produced HMA-based monolithic columns were composed of adhered polymer particles, 1 $$mu$$m and less than in diameter. The pressure drop of column, this 200 mm long, was below 2.0 MPa at linear velocity of 1 mm s$$^{-1}$$. The height equivalent to a theoretical plate was approximately 30 $$mu$$m for the five kinds of alkylbenzenes.

Oral presentation

Organic polymer-based monolithic columns prepared by radiation-induced polymerization

Ueki, Yuji*; Iwashita, Yoshikazu*; Hotta, Hiroki*; Odake, Tamao*; Tsunoda, Kinichi*; Umemura, Tomonari*; Katakai, Akio; Tamada, Masao

no journal, , 

The studies on monolith columns, which consist of polymer medium with through-pore ($$sim$$ $$mu$$m), have been vigorously performed to aim at rapid and high-resolution separation of organic materials. The monoliths are directly synthesized in fused silica capillaries by thermal polymerization. It is difficult to prepare the homogeneous monoliths by thermal polymerization, because of the heterogeneity of heat transfer and initiator dispersion. In the present paper, polymer monoliths were prepared by $$gamma$$-rays irradiation. As a result, homogeneous monoliths, which composed of adhered particulate of polymer $$sim$$ 1 $$mu$$m in diameter. The highest separation of the monolith column was obtained at 10 kGy irradiation when the total concentration of monomers and cross-linker were charged at 20 and 25%, respectively.

Oral presentation

Preparation and characterization of organic polymer-based monolithic columns prepared by radiation-induced polymerization

Ueki, Yuji; Katakai, Akio; Tamada, Masao; Iwashita, Yoshikazu*; Hotta, Hiroki*; Odake, Tamao*; Tsunoda, Kinichi*; Umemura, Tomonari*

no journal, , 

no abstracts in English

Oral presentation

Preparation and characterization of methacrylate-based semi-micro monolithic columns for reversed-phase liquid chromatography

Ueki, Yuji; Sato, Harutomo*; Iwashita, Yoshikazu*; Hotta, Hiroki*; Odake, Tamao*; Tsunoda, Kinichi*; Umemura, Tomonari*

no journal, , 

no abstracts in English

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