Chapter 14: Precise measurement of trace actinides using Phoenix TIMS
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Published:08 Dec 2023
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Special Collection: 2023 ebook collection
Z. Palacz, S. Yardley, M. Hockley, and S. Guilfoyle, in Environmental Radiochemical Analysis VII, ed. N. Evans, Royal Society of Chemistry, 2023, vol. 357, ch. 14, pp. 151-157.
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The performance characteristics of an Isotopx Phoenix equipped with 10 conversion dynode ion counters with newly developed MICX electronics is evaluated. This design allows the simultaneous measurement of actinides at unit mass spacing. The ion counters are independently movable allowing the study of a wide range of isotope systems. This instrument also has a Zeptona Faraday detector. This allows calibration of ion counter gain relative to a Faraday collector at count rates of <~10,000 cps, far lower than is possible for resistor-based Faraday collectors.