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| The energy development group consists of six researchers. At the group,
we are conducting R&D on material development with accelerator, solar
energy utilization, energy utilization enhancement, advanced technologies
related to nuclear power, etc. |
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◆Material development research with tandem accelerator
By making use of a tandem accelerator, we are conducting researches on
the creation of iron-silicide thin membrane (β-FeSi2) on silicon (Si),
which is drawing attention as an environmentally-friendly semiconductor
or an emitting material; the preparation of ultrafine metal phase in an
iron-silicide semiconductor by heavy ion irradiation to create a silicon-integrated
semiconductor device; the structural analysis of alkali-earth silicide
semiconducting material, which is resourceful and promising as a highly-efficient
battery material, in order to develop a solar battery material; the evaluation
technique for swelling rates to verify the resistance to radiation of materials
used for a fast reactor core; etc.

Interface of iron-silicide thin membrane
◆Development of solar energy utilization technology
By means of a 1 kW-scale small solar furnace with a plane-convex lens (Fresnel
lens) to focus sunlight, we have treated iron compounds by generating a
high temperature over 2000 deg.C. Utilizing the treated product, we have
confirmed that hydrogen is produced from water at low temperatures. From
the 2007 fiscal year, this research is developed and it is experimenting
by installing a 10kW-scale large solar furnace. Moreover, the research
that uses the high temperature by condensing and resolves, melts, and processes
carbon dioxide and the coal ash, etc. is also advanced. |

Solar furnace (10kW-scale)
◆Development of energy utilization technology
In order to use surplus energy and natural energy in the power plant etc.
effectively, we are carrying out researches on heat savings with chemical
thermal storage material, the heat transportation using the circulation
type heat pipe of bubble drive system and air-conditioning etc. by cold
energy of snow. Moreover, we are carrying out researches on the evaluation
tests on job safety during a nuclear reactor dismantlement in the nuclear-related
area, the elemental technology related to hydrogen production technology
by utilizing heat from a fast reactor and the marine environmental monitoring
of Wakasa Bay where a number of nuclear power plants are located, etc.

Snow storage at the test facility
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Other research theme
- R & D for light energy conversion materials – approach from photochromism
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