2013 Fiscal Year Final Research Report
Development of in-situ high-pressure and -temperature chemical analysis technique by femto-second laser-induced breakdown spectroscopy
| Project/Area Number |
23244104
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Petrology/Mineralogy/Science of ore deposit
|
|---|
| Research Institution | Okayama University |
|---|
Principal Investigator |
KANZAKI Masami 岡山大学, 地球物質科学研究センター, 教授 (90234153)
|
|---|
| Project Period (FY) |
2011-04-01 – 2014-03-31
|
| Keywords | geofluid / chemical analysis / in-situ / LIBS / diamond anvil cell / plasma / spectroscopy / pulse laser |
|---|
| Research Abstract |
Slab-derived fluids can contain substantial amounts of silicate components, but it is difficult to quench such fluids, and its composition can not be determined precisely. In this study, I proposed a novel in-situ method for chemical analysis of fluid under high pressure and temperature conditions. In this method, pulsed laser beam is focused in small area of sample within diamond anvil cell (DAC). Plasma will be produced, and then plasma cools down to form neutral atoms. Then characteristic wavelength light inherent to atoms will be emitted. By analyzing this light, we can determine chemical composition of the fluid in DAC.
To evaluate this proposed method, externally-heated DAC, monochrometer, gated-intensifier and CCD detector, and pico-second laser are introduced, So far, high-pressure and temperature fluids have been produced using externally heated DAC, but laser induced plasma light in DAC has not been detected yet.
|
Research Products
(18 results)
