Delayed coincidence technique for 133gXe detection

Reeder, P.L.; Bowyer, Theodore W.

doi:10.1016/s0168-9002(98)00213-7

Cited by 12 publications

(3 citation statements)

References 3 publications

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“…Both of these techniques were used in coincidence mode with a photon detector. Furthermore, the delayed coincidence technique was considered [4]. For all of these coincidence techniques, the detection system consisted of two detectors, a photon detector and an electron detector.…”

Section: Methodsmentioning

confidence: 99%

“…'33Xe decays by beta emission to an excited state of lacs, which decays with a 6.36 ns half-life by emitting either an 81 keV gamma ray or a conversion electron in coincidence with a 3 1 keV X-ray. The detection of this conversion electron in delayed coincidence with the beta particle is referred to as the delayed coincidence technique [4].…”

Section: Introductionmentioning

confidence: 99%

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An evaluation of radioxenon detection techniques for use with a fluid-based concentration system

Ruß

Stuenkel

Valentine

et al. 1999

IEEE Trans. Nucl. Sci.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An evaluation of radioxenon detection techniques for use with a fluid-based concentration system

Ruß

Stuenkel

Valentine

et al. 1999

IEEE Trans. Nucl. Sci.

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“…Their measuring system [11,12] is more complex than our facility and differs in both the design for the detector assembly and the method for selecting the useful signals.…”

Section: Introductionmentioning

confidence: 99%

Measuring Low Activities of Fission-Product Xenon Isotopes Using the β-γ Coincidence Method

et al. 2005

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A γ -spectrometer facility operating in the βγ coincidence mode is able to detect ultralow activities of 131 m ïÂ, 133 m ïÂ, 133 ïÂ , and 135 Xe isotopes. A gas sample is introduced into the measuring chamber that is a thin-walled aluminum cylinder with its inner surface coated with organic scintillator to detect β particles and conversion electrons. The chamber is placed in the well of a NaI(Tl) crystal detector of X and γ rays. The resultant γ -ray spectrum is formed by extracting X-and γray pulses coincident in time with pulses of β particles and conversion electrons. The radiation background level is thereby reduced by two orders of magnitude in comparison with measurements in the standard mode (without coincidences), which leads to a significant increase in the spectrometer sensitivity. The design for the measuring system used in the Äêàäë-01 complex of equipment is described, along with the determination of its efficiency and its energy calibration. Data on the sensitivity achieved are presented.

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