A Windowless Cell for Laser-Raman Spectroscopy of Molten Fluorides
Spectroscopic studies of molten fluorides have been hampered by the lack of corrosion resistant optical window materials; however, within the past few years suitable cells have been developed to measure the visible and uv absorption spectra of these melts. These cells are of two general types: (a) windowless or captive liquid cells which can be constructed from several different materials and in which the liquid is retained by its surface tension1; and (b) diamond window cells, with graphite bodies, in which the nonwetting properties of the melts prevent leakage around the windows.2 The advantages and disadvantages of each type of cell are summarized in Refs. 1. and 2.
KeywordsBoron Nitride Quartz Tube Molten Salt Slot Width Fluoride Salt
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