Fig. 2From: Design of a Mars atmosphere simulation chamber and testing a Raman Laser Spectrometer (RLS) under conditions pertinent to Mars rover missionsDesign and dimensions (mm) of the cooling plate; Freon enters from the red entrance and is passed along the green path inside the cooling plate. The circles indicate the connection of cooling plates but allow Freon to flow between the welds (area in green). There are six welds (concentric circles) plus one large oval weld in the cooling plate that connects the plates and prevents Freon circulation which is shown in the white areaBack to article page