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Hara, Akio*; Hoshi, Kazuyoshi*; Kato, Arata*; Maekawa, Keisuke
JAEA-Research 2007-015, 104 Pages, 2007/03
JAEA-Research-2007-015.pdf:25.1MB
It is very important for performance assessment of high-level radioactive waste disposal to develop a method to estimate heterogeneity of sedimentary rocks. We studied siliceous shale from boreholes in the Horonobe area, and developed a sedimentary process modeling software in order to establish a method to estimate heterogeneity of sedimentary rocks. In this study, we aimed for addition of functions in sedimentary process modeling software and improvement of operability. For the former aim, we added functions which were enable to consider the second sedimentation style and influences by subsidence and upheaval of basement of sedimentary basin at the time of a shoreline movement calculation. And, on the occasion of the output of calculation results, we changed the file format in order to enable to adapt to the current visualization software. For the latter aim, we developed the Graphic User Interface (GUI) to support a work for data input. Using this sedimentary process modeling software with the above-mentioned improvement, we carried out simulations for Horonobe area. For making of input data, we utilized the existing data from geological surveys which were carried out by not only Japan Atomic Energy Agency but the others. Therefore we showed two realizations of geological model of Horonobe area. Moreover, we suggested a possibility of sand deposition in a remote area from accutual boreholes. From these results, we showed an applicability of this modeling methodology.
Kobayashi, Toru*; Harata, Yasuo*; Matsufuji, Naruhiro*; Hasegawa, Tomoyuki*; Endo, Akira; Moribayashi, Kengo; Akahane, Keiichi*; Uehara, Shuzo*; Imahori, Yoshio*; Kato, Yo*; et al.
JAEA-Review 2006-002, 101 Pages, 2006/02
JAEA-Review-2006-002.pdf:5.53MB
This report provides an analysis of the results of the survey conducted among field experts regarding the data on atoms, molecules, and atomic nuclei used in medical applications. The important results are summarized as follows: First, the importance of the basic data for disciplines involved in medical research, i.e. physics and engineering, chemistry, pharmacology, biology, and the related data which are applied directly in medicine were identified. The related data are of greater importance in direct medical application compared to conventional basic data. Therefore, the data related to biology should be prepared in consideration of their convenient usage. Second, regarding the fundamental data on atoms, molecules and atomic nuclei related to medicine, the present data was able to approximately cope with the demands of many medical cases that needed data on quality, quantity, precision, etc. However, we found situations particularly in the IT community where comprehensively organized data was urgently needed. The data to be used for practical implementation must contain the specialized data for medical physics and biology. Finally, the significance of the continuity in the planned completion of the basic data was confirmed for the development of the associated fields. The expansion and completion of basic data should be done continuously and effectively while considering the limitation in resources and manpower.
Kato, Arata*; Kawada, Koji*; Masui, Yasuhiro*; Tsuji, Takashi*; Suwabe, Mizue*
JNC TJ8400 2003-094, 71 Pages, 2004/02
JNC-TJ8400-2003-094.pdf:2.03MB
It is very important to estimate the facies distribution of heterogeneous sedimentary rocks for geological disposal of high level radioactive waste. The heterogeneousness of sedimentary rocks is due to variable distribution of grain size and mineral composition. The objective of this study is to establish the evaluation method for heterogeneous sedimentary rocks based on forward model. In this study, the following items were studied.1.}The sedimentary system for Koetoi and Wakkanai formations in Horonobe area was compiled based on published papers.2.}The cores of HDB-1 were observed mainly from sedimentological view.3.}The facies and compaction property of argillaceous rocks were studied based on physical logs and core analysis data of wells.4.}The structure maps, isochrone maps, isopach maps and restored geological sections were made.5.}The soft wear for sedimentary model to show sedimentary system on a basin scale was developed.
Kato, Arata*; Kawada, Koji*; Masui, Yasuhiro*; Tsuji, Takashi*; Suwabe, Mizue*
JNC TJ8400 2003-093, 178 Pages, 2004/02
JNC-TJ8400-2003-093.pdf:5.72MB
It is very important to estimate the facies distribution of heterogeneous sedimentary rocks for geological disposal of high level radioactive waste. The heterogeneousness of sedimentary rocks is due to variable distribution of grain size and mineral composition. The objective of this study is to establish the evaluation method for heterogeneous sedimentary rocks based on forward model. In this study, the following items were studied. 1..The sedimentary system for Koetoi and Wakkanai formations in Horonobe area was compiled based on published papers. 2..The cores of HDB-1 were observed mainly from sedimentological view. 3..The facies and compaction property of argillaceous rocks were studied based on physical logs and core analysis data of wells. 4..The structure maps, isochrone maps, isopach maps and restored geological sections were made. 5..The soft wear for sedimentary model to show sedimentary system on a basin scale was developed.
Kobayashi, Toru*; Harata, Yasuo*; Matsufuji, Naruhiro*; Hasegawa, Tomoyuki*; Endo, Akira; Moribayashi, Kengo; Akahane, Keiichi*; Uehara, Shuzo*; Imahori, Yoshio*; Kato, Yo*; et al.
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no abstracts in English
Maekawa, Keisuke; Hara, Akio*; Kawamura, Makoto; Kato, Arata*
no journal, ,
no abstracts in English
Maekawa, Keisuke; Hara, Akio*; Hiura, Yuki*; Hou, J.-Y.*; Kato, Arata*
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no abstracts in English