Capillary Gas Cells

Gas control system

• I11 is equipped with a gas dosing panel for ease of adding low or high pressure gas to sample cells during data collection.
• Sample cells can be evacuated (mbar) then gas added to low pressures (1.5bar) or high pressures (100 bar) depending on the cell used

The I11 gas pressure panel

Low pressure capillary cell

• A capillary cell is available for in-situ gas absorption/desorption studies at pressures up to 1.5 bar
• The cell can be heated or cooled using the beamline hot air blower (RT - 1000°C) or cryostream (80-500K)

The low pressure capillary gas cell

High pressure capillary cell

• A capillary cell is available for in-situ gas absorption/desorption studies at pressures up to 100 bar
• The cell can be heated or cooled using the beamline hot air blower (RT - 1000°C) or cryostream (80-500K)
• Sapphire capillaries are used for high temperature and pressure
• The cell can be isolated to enable air sensitive samples to be loaded in a glove box and transported onto the beamline in inert atmosphere.

The high pressure capillary gas cell

Flow cell

A modified version of the high pressure cell is also available for gas flow experiments, using a separate mass controller panel allowing the mixing and flow of up to 3 gases at 1 bar pressure.

For further information about the gas cells or control system please contact beamline staff.