A Technique for Measuring Microparticles in Polar Ice Using Micro-Raman Spectroscopy
Figure 1
Schematic of the cryostat system. The temperature is controlled by N2 gas, evaporated by a heater inside a Dewar flask containing liquid N2. The heater is controlled by and connected to a thermocouple inside the cryostat. The cryostat container is made of chloroethene, and a Styrofoam setting is inside the container. Heat-absorptive lens and slide glasses are set inside the Styrofoam between the ice sample and the halogen light source, to prevent the latter from warming the sample.
