Nanopore analysis of natural rocks and minerals by positron
Project/Area Number |
21540317
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics I
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Research Institution | Tokyo Gakugei University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
SATO Kiminori 東京学芸大学, 教育学部, 准教授 (00401448)
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
|
Keywords | 鉱物 / ナノ空孔 / 陽電子 / ポジトロニウム / 物質移行 / 岩石 / 空隙 |
Research Abstract |
Nano-scale pores in natural minerals and rocks were investigated by positron annihilation spectroscopy combined with other porosimetric techniques as N_2 gas absorption porosimetry and small angle x-ray scattering. It was found that positron annihilation spectroscopy sensitively probes micropore less than 2 nm in diameter. The Cs diffusion coefficient through angstrom-scale inter layer spaces of saponite was evaluated to be 2. 5×10^<-8>[ cm^2s^<-1>].
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Report
(4 results)
Research Products
(99 results)
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[Journal Article] Interlaboratory Comparison of Positron Annihilation Lifetime Measurements2009
Author(s)
K. Ito, T. Oka, Y. Kobayashi, Y. Shirai, K. Wada, M. Matsumoto, M. Fujinami, T. Hirade, Y. Honda, H. Hosomi, Y. Nagai, K. Inoue, H. Saito, K. Sakaki, K. Sato, A. Shimazu, and A. Uedono
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Journal Title
Materials Science Forum
Volume: 607
Pages: 248-250
Related Report
Peer Reviewed
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[Journal Article] Interlaboratory Comparison of Positron Annihilation Lifetime Measurements2009
Author(s)
K.Ito, T.Oka, Y.Kobayashi, Y.Shirai, K.Wada, M.Matsumoto, M.Fujinami, T.Hirade, Y.Honda, H.Hosomi, Y.Nagai, K.Inoue, H.Saito, K.Sakaki, K.Sato, A.Shimazu, A.Uedono
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Journal Title
Materials Science Forum 607
Pages: 248-250
Related Report
Peer Reviewed
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