A dedicated gas cell, designed to support pressures up to 200 bar and temperatures up to 350 °C, has been coupled to the FT-IR.
The gas cell was designed to study controlled injection of electrons into a laser-driven wakefield at the Astra Gemini laser facility.
A gas cell with this design was validated for high resolution measurements at temperatures of up to 800 K (527 °C) in the ultraviolet (UV) and infrared (IR) regions (190 20 000 nm).
Data on the influence of some cell design and gas dispersion parameters on process efficiency are reported, and the potential practical applications for this type of cell are envisaged.
Experimental factors that are critical to successful measurements, including general beamline configuration and energy resolution, in situ cell design, detector gases and common artifacts are discussed.
A gas flow simulation was performed to optimize the design of the gas cell for efficient and fast transport of TLFs.
To overcome this limitation a second-generation gas cell with increased stopping volume was designed.
Moreover, the AP cell design allows the gas-filled inner volume to remain small, which is highly beneficial for experiments in which fast gas exchange is required.
