Industry-University Cooperation Foundation Hanyang University

Korea Atomic Energy Research Institute

Daegu Gyeongbuk Institute of Science and Technology

Hee Won Seo

Ho-Dong Kim

So Hee Kim

Jin-Hyung Park

Hee-Sung Shin

Dae-Yong Song

Bo-Young Han

Chan-Hyeong Kim

See-Hwan Park

Byung-Hee Won

Sang Ho Na

A three-dimensional electrode device and a method for manufacturing the same are disclosed. A three-dimensional electrode device as disclosed can be in close contact with target cells in a retina without damaging the retina to apply electrical stimulation to the retina. The three-dimensional electrode device can include a board prepared to be inserted into a photoreceptor layer in an eyeball and formed of a transparent material; and a plurality of electrodes formed on the board and configured to stimulate a retina. The board can be prepared to be deformed corresponding to a shape of the retina and configured to make the electrodes be in close contact with the retina.

Three-dimensional electrode device and method for manufacturing the same

Disclosed herein is a method for manufacturing oxide fuel pellets. The method for manufacturing the oxide fuel pellets includes (step 1) preparing nuclear fuel powder containing uranium dioxide (UO2+x, x=0 to 0.20), (step 2) compacting the nuclear fuel powder prepared in step 1 to manufacture green pellets, sintering the green pellets manufactured in step 2 at a temperature of about 1,200&#xb0; C. to about 1,400&#xb0; C. by using an atmosphere gas, and reducing the green pellets sintered in step 3 at a temperature of about 800&#xb0; C. to about 1,000&#xb0; C. by using a reducing atmosphere gas. The method for manufacturing the oxide fuel pellets according to the present invention performs the sintering at a low temperature of about 1,200&#xb0; C. to 1,400&#xb0; C. to manufacture economical and safe oxide fuel pellets that are adequate for the nuclear fuel specification.

Method for fabrication of oxide fuel pellets and the oxide fuel pellets thereby

There are provided a gamma ray detecting apparatus, including: a secondary electron emitter causing a Compton scattering reaction with an incident gamma ray to emit secondary electrons in a progress direction of the gamma ray; a first radiation detector provided to be opposed to the secondary electron emitter with respect to an emission progress direction of the secondary electrons and detecting the position and transfer energy of the secondary electron; a second radiation detector provided to be opposed to the first radiation detector with respect to the emission progress direction of the secondary electron and detecting the position and the transfer energy of the secondary electron passing through the first radiation detector; a third radiation detector provided to be opposed to the second radiation detector with respect to the emission progress direction of the secondary electron and detecting residual energy of the secondary electron by absorbing the secondary electron passing through the second radiation detector; and a data processor having a coincidence circuit judging whether the secondary electrons simultaneously react in the first to third radiation detectors, and the data processor back traces trajectories of the secondary electrons detected by the first and second radiation detectors to detect the position of a ray source of the gamma ray, and a gamma ray detecting method.

Gamma ray detecting apparatus and method for detecting gamma ray using the same

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Gyeonggi-do, South Korea

Hee Won Seo