Measurement of cesium isotopic ratio by thermal ionization mass spectrometry for neutron capture reaction studies on 135Cs

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

“…Shibahara et al used TIMS for evaluating the nuclear data of 135 Cs. 201 Additive agents were tested for the impact of Cs ionisation to achieve an intense and stable beam, with silicotungstic acid having the most impact while also showing the largest polyatomic interference. The optimised method was tested on two radioactive Cs samples.…”

Determination, Separation and Application of 137Cs: A Review

“…By setting the magnetic field under the control of a dedicated personal computer, TIMS works in a peak-hopping mode, in which the specified ion beam is directed to the detector in sequence, the computer acquires voltage data in a digital format as a measure of peak intensity, and calculate the specified isotope ratio. The characteristic of TIMS is the abundance sensitivity of 10 −10 –10 −11 at m / z 135, which is suitable for the analysis of 135 Cs and 137 Cs [ 61 ]. TIMS is widely used for nuclear safeguarding and forensic purposes due to providing high accuracy, precision, and sensitivity, additionally exhibiting the advantages of negligible spectral interference, matrix effects, and mass bias [ 62 , 63 , 64 ].…”

Quantitative determination of 137Cs and 90Sr in dissolver solutions without pre-separation by isotope dilution thermal ionization mass spectrometry

“…It is well known that in isotopic analysis using TIMS, choosing a proper activator can signicantly enhance the ion beam stability and ionization efficiency, which, in turn, improve the precision and accuracy of the measurements. Recently, Shibahara et al 23 have evaluated the ionization efficiency for the pure Cs sample using nine different additives on rhenium laments. This study indicated that even though silicotungstic acid showed the highest ionization efficiency, isobaric interferences due to polyatomic ions were the largest with this activator.…”