Preliminary measurements of 135Cs with AMS

Yin, Xinghui; He, Ming; Dong, Kun; Li, Dou; Lan, Xiao-Xi; Pang, Fangfang; Wu, Shaoyong; Jiang, Shan

doi:10.1016/j.nimb.2015.07.124

Cited by 5 publications

(7 citation statements)

References 4 publications

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“…In addition, the sensitivity of 1.8×10 –10 ( 135 Ba/Cs) can be obtained from the present experiment, which is slightly worse than that of previous result (Yin et al 2015). The likely reason for this is that, in case of the Cs − ion with charge state 10 + , an interference peak from the scattering of some ions with similar energy cannot be completely separated from the peak of 135 Ba.…”

Section: Discussioncontrasting

confidence: 98%

“…However, Cs − has been selected as the suitable choice for the present 135 Cs AMS measurements based on our previous experimental results. The details of experiment can be found in Yin et al (2015). The beam current was measured before and after the measurement.…”

Section: Experiments and Resultsmentioning

confidence: 99%

“…Then the beam current of 133 Cs 8+ was measured by the AMS Faraday cup. It should be noted that the previous measurement for CsNO 3 +Ag sample (Yin et al 2015) had been made using the 10 + charge state at 7.6 MV. Then the 135 Cs − ions were selected by changing the injection magnet.…”

Section: Experiments and Resultsmentioning

confidence: 99%

“…The importance of the conducting medium in AMS measurement cannot be neglected. In our previous experiments (Yin et al 2015), Ag powder was used as the conducting medium. In order to affirm whether the Ag powder is the appropriate conducting medium or not, a different conducting medium, Fe powder, was used in the present experiment.…”

Section: Discussionmentioning

confidence: 99%

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Steps Toward Measurement of ¹³⁵Cs with AMS at CIAE

Yin

Dong

et al. 2017

Radiocarbon

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Abstract135Cs with a half-life of T1/2=2.3×106 yr is an important nuclide in studies of the dispersal of nuclear material in the environment. Preliminary measurements using 133Cs as a proxy for the long-lived 135Cs, with accelerator mass spectrometry (AMS) have been developed at the China Institute of Atomic Energy (CIAE). In order to improve the sensitivity of 135Cs AMS measurement, a new conducting material, Fe powder, was used in the experiment. According to the present results, the background level that can be obtained with blanks was 135Ba/Cs~1.83×10–10 with the CIAE-AMS system. These measurements showed that the Fe was an inferior conducting medium because the interference of 135Ba in Fe powder is 10 times higher than that in Ag powder.

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Section: Discussioncontrasting

confidence: 98%

Section: Experiments and Resultsmentioning

confidence: 99%

Section: Experiments and Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Steps Toward Measurement of ¹³⁵Cs with AMS at CIAE

Yin

Dong

et al. 2017

Radiocarbon

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“…, Yin et al . ) have worked on establishing AMS for 135 Cs detection, which would be extremely useful for environmental samples, as an oceanic tracer and for erosion rate studies. One of the first outcomes of this work was a redetermination of the 135 Cs half‐life using AMS and ICP‐MS along with β and γ radiometric analysis (MacDonald et al .…”

Section: Advances In Accelerator‐based Methodsmentioning

confidence: 99%

GGR Biennial Critical Review: Analytical Developments Since 2014

Linge

Bèdard

Bugoi

et al. 2017

Geostandard Geoanalytic Res

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This GGR biennial critical review covers developments and innovations in key analytical methods published since January 2014, relevant to the chemical, isotopic and crystallographic characterisation of geological and environmental materials. In nine selected analytical fields, publications considered to be of wide significance are summarised, background information is provided and their importance evaluated. In addition to instrumental technologies, this review also presents a summary of new developments in the preparation and characterisation of rock, microanalytical and isotopic reference materials, including a précis of recent changes and revisions to ISO guidelines for reference material characterisation and reporting. Selected reports are provided of isotope ratio analyses by both solution-nebulisation MC-ICP-MS and laser ablation-ICP-MS, as well as of radioactive isotope geochronology by LA-ICP-MS. Most of the analytical techniques elaborated continue to provide new applications for geochemical analysis, however it is noted that instrumental neutron activation analysis has become less popular in recent years, mostly due to the reduced availability of nuclear reactors to act as a neutron source. Many of the newer applications reported here provide analysis at increasingly finer resolution. Examples include atom probe tomography, a very sensitive method providing atomic scale information, nanoscale SIMS, for isotopic imaging of geological and biological samples, and micro-XRF, which has a spatial resolution many orders of magnitude smaller than conventional XRF

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