Gaseous leak detection system and associated methods

A method for detecting gaseous leaks, the method comprising:

• measuring a first intensity of light from a light source using at least one spectrometer emplaced at a leak detection location;
• generating a leak detection data feed based on the first intensity of light,
• measuring an absorption lineshape of light from the light source using a laser heterodyne radiometer (LHR) emplaced at a background detection location;
• generating a background data feed based on the absorption lineshape of the light from the light source;
• analyzing, by a computing device, the leak detection data feed and the background data feed;
• and
• generating a signal based on the analyzing.

A gaseous leak detection system, comprising:

• a spectrometer placed at a potential leak location, the spectrometer including a photodiode and at least one of a diffraction grating and an echelle grating in a Littrow configuration;
• a laser heterodyne radiometer (LHR) placed at a background detection location;
• and
• a computing device configured for receiving and analyzing data from the spectrometer and the LHR,
• wherein the spectrometer is configured to generate a leak detection data feed from light intensity measured from a light source,
• wherein the LHR is configured to generate a background data feed from an absorption lineshape measured from the light source, and
• wherein the computing device is configured for receiving and analyzing the leak detection data feed and the background data feed to determine presence of a gas leak.