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Kai, Takeshi; Sato, Tatsuhiko; Liamsuwan, T.*; Nikjoo, H.*
no journal, ,
A general purpose particle transport simulation code, PHITS is expected to apply dose evaluation in macroscopic systems as well as radiation interaction investigation in nanoscale for study of interaction between radiations and materials. To clear the problem, we implemented track structure calculation codes into the PHITS. The codes make microscopic behavior as well as energy depositions (ionization and excitation) of the electrons, protons and carbon ions possible. The PHITS could evaluate radiation dose of cellar size. As this implementation, DNA damage predictions, which need radiation interaction in the molecular levels, will be expected using this track-structure simulation mode.
Yokoyama, Keiichi; Matsuda, Shohei
no journal, ,
The scheme of cesium isotope separation proposed by us needs low-frequency terahertz wave, which often suffers from significant loss during wave traveling due to the diffraction. To avoid this difficulty, it may be helpful to design an experiment involving interaction between matter and terahertz wave right after the generation. With this regards, we conducted an experiment to measure terahertz waveform right after the generation with the OH1 crystal, which is known to have high efficiency in both THz generation and electro-optic effect. As a result, we found that the waveform can be measured without bother from the pump pulse, by using reflection of terahertz wave inside the OH1 crystal.
Fukaya, Yuki
no journal, ,
no abstracts in English
Okuno, Yasuki; Okamoto, Tamotsu*; Goto, Yasuhito*; Akiyoshi, Masafumi*; Imaizumi, Mitsuru*; Kobayashi, Tomohiro*
no journal, ,
A solar cell type detector has features such as a thin film structure and no power supply drive by an internal electric field, and it is considered to be useful in a 1 F decommissioning environment. In this presentation, radiation behavior of InGaP and CdTe solar cells with high radiation resistance are reported.
Terasawa, Tomoo; Yasuda, Satoshi; Hayashi, Naoki*; Norimatsu, Wataru*; Ito, Takahiro*; Machida, Shinichi*; Yano, Masahiro; Saiki, Koichiro*; Asaoka, Hidehito
no journal, ,
We report the band structure of graphene grown on hex-Au(001) using angle resolved photoemission spectroscopy (ARPES). We prepared graphene on hex-Au(001) by chemical vapor deposition and took ARPES image of the sample at AichiSR BL7U. The linear graphene band shows the intensity reduction at the binding energy of approximately 0.9 eV, indicating the modification of band structure of graphene by quasi-one dimensional potential of the hex-Au(001) reconstructed surface.
Yano, Masahiro; Terasawa, Tomoo; Machida, Shinichi*; Yasuda, Satoshi; Asaoka, Hidehito
no journal, ,
no abstracts in English
Sato, Yuji; Tsukamoto, Masahiro*; Shobu, Takahisa; Muramatsu, Toshiharu
no journal, ,
no abstracts in English
Kodama, Shohei*; Kurosawa, Shunsuke*; Morishita, Yuki; Usami, Hiroshi; Hayashi, Masateru*; Tanaka, Hiroki*; Yoshino, Masao*; Kamada, Kei*; Yoshikawa, Akira*; Torii, Tatsuo
no journal, ,
After Fukushima 1st Nuclear Plant accident, a large number of radioactive pollutants or nuclear debris with very high dose of more than a few Sv/h still have existed. To estimate the dose of such pollutants, a Japan Atomic Energy Agency research group has suggested a new technique to use a long optical fiber and a red-emitting scintillator, and the scintillation photons are read outside of high dose area. We tested the gamma-ray detection performance of a ruby (Cr:Al
O
) and a newly developed CsHfI
scintillators as a scintillating probe coupled with an optical fiber in this study.