Number density (x 10^{14}/ cm^3),RTD Sense chamber (Celsius),RTD Reservoir chamber (Celsius) 0.14,116.1,102.9 0.29,129.4,114 0.59,144.4,125.2 1.13,159.5,139.5 2.02,173.8,152.3 3.32,189,165