About FIDO

Rover Tests



Raman Spectrometer

When integrated, the Raman Spectrometer will be located on the rover's robotic instrument arm, where it can be positioned to examine rock and soil samples. The spectrometer transmits a red light laser beam at the sample and receives returned light. Due to the Raman effect, a small (one part in a million) fraction of the light is shifted to longer wavelengths. A spectrometer records signal strength as a function of wavelength shift. The resulting spectrum is diagnostic of the mineralogy.

The Athena Payload website contains more information about the Raman Spectrometer flight model.