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Chlor-X Analyzer

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AR #1515

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Tech ID: 2926
Project Overview
The INEEL Waste Experimental Reduction Facility (WERF) requires the capability to analyze the chlorine content of materials that are scheduled for incineration. Currently, samples are collected and sent offsite for analysis. The Chlor-X Analyzer allows WERF to sample and perform real-time analysis on the chlorine content of a sample. The test is non-destructive, so secondary waste generation is not an issue.

Development of the NuMaT Chlor-X Analyzer was supported by the MWFA to make available an automated analytical instrument for measuring the chlorine content of a sample. The system provides analysis down to approximately 50 ppm with an error of ±10%. For chlorine concentrations greater than 1%, the error is approximately ±5%. The time required to perform chlorine analysis on a sample is 300 seconds.

Technology Description
The NuMaT Chlor-X Analyzer is an automated analytical instrument for measuring the chlorine content of a sample. The Chlor-X Analyzer is a portable, tabletop device with the approximate dimensions of 18 inches tall, 7 inches wide, and 20 inches deep. Power requirements are 110 Volts. The method used for measuring the chlorine concentration is the photon-induced X-Ray Fluorescence (XRF) method. An intense iron-55 ( 55Fe) source in an annular geometry provides the exciting photon beam. The photons emitted from the source are the characteristic manganese (Mn) X-rays (Ka = 5.9 keV and Kb = 6.39 keV). The Mn X-rays irradiate the sample and interact with the atoms present. Those atoms with electron binding energies below the energy of the exciting beam fluoresce, emitting characteristic X-rays. The X-ray detector in the analyzer detects these X-rays.

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