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Highly Sensitive Laser Diode Detection of CsCl
Volume 159 · Number 2 · August 2007 · Pages 221-226
Technical Note · Radiation Measurements and Instrumentation
Edward Augustyniak, Aleksander Ershov, Jacek Borysow
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A highly sensitive method aimed at detection of CsCl on nuclear remediation sites with isotopic selectivity was developed. The approach couples electric discharge in hydrogen as a source of dissociation of CsCl with high-resolution absorption spectroscopy using a tunable laser diode for subsequent identification of metallic cesium. The number densities of CsCl as low as 5 × 107 cm-3 can be detected with a signal-to-noise ratio better than 10 during seconds-long observation.
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