Japan Atomic Energy Agency

Geological Isolation Research and Development

equipments

QUALITY / equipments

Atomospheric controlled chambers simulating the geological envireonment of deep underground, and high–performance analyzers

The atmospheric–controlled chambers can simulate the chemical environment of deep underground, and experiments are carried out using redioactive materials in such environments in these chambers. The environment of deep underground can be simulated by keeping the oxygen content below 1ppm and controlling the carbonate content to any specified value. The atmospheric controlled chambers for geological disposal research.

Atmospheric controlled chambers

The high–performance analyzers installed in this facility are listed below; various other analyzers are also installed.

X–ray diffractometer (XRD)
Scanning electron microscope (SEM)
Electron probe microanalyzer (EPMA)
Inductively coupled plasma spectrometer (ICP)
Inductively coupled plasma mass spectrometer (ICP–MS)
Laser photoacoustic spectrometer (LPAS)
Gas chromatography mass spectrometer (GC–MS)
Fourier transformation infrared spectrometer (FT–IR)
Atomic absorption spectrometer (AAS)

Examples of tests and analyses

Extent to which radioactive materials are dissolved into groundwater
Extent to which radioactive materials dissolved in groundwater are sorbed by engineered barriers and rocks
Mechanism by which radioactive materials migrate in engineered barriers and rocks
Chemical form of radioactive materials dissolved in groundwater
Sorption mechanism of radioactive materials sorbed on surfaces of rocks

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