2011 Fiscal Year Final Research Report
Nanopore analysis of natural rocks and minerals by positron
| Project/Area Number |
21540317
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Condensed matter physics I
|
|---|
| Research Institution | Tokyo Gakugei University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
SATO Kiminori 東京学芸大学, 教育学部, 准教授 (00401448)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Keywords | 鉱物 / ナノ空孔 / 陽電子 / ポジトロニウム |
|---|
| 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>].
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[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
-
Journal Title
Materials Science Forum
Volume: 607
Pages: 248-250
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
