Determination of 129I in cement-solidified radwastes using neutron activation

Kuo, Ching-Ming; Tsai, Tsung‐Lin; Chiang, Ann‐Shyn; Chang-Liao, K. S.; Chao, Jiunn‐Hsing

doi:10.1007/s10967-013-2486-y

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…Ten real samples collected from the Lan-Yu low-level radioactive temporary storage site were examined. The procedure for the I-129/Cs-137 scaling-factor determination was demonstrated in our previous study [36,37]. We used low-energy -ray spectrometry to detect the concentration of I-129 and determined that it was below 95 mBq/g (the detection limit) and that the value of the I-129/Cs-137 scaling factor is < 3 × 10 −7 .…”

Section: Comparison Of the Radioactivity Estimated By The Scaling Facmentioning

confidence: 99%

An improved analytical method for iodine-129 determination in low-level radioactive waste

et al. 2014

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In this study, an alkaline-digestion pretreatment and a subsequent ICP-MS measurement were conducted for iodine-129 (I-129) determination in low-level radioactive waste. A TMAH + H 2 O 2 + Triton X-100 mixed alkaline digestion was the most effective mixture for I-129 determination. Using this alkaline reagent, a high level of I-129 recovery (101 ± 6%) was achieved for the analysis of the I-129-spiked standard reference materials NIST 2709 and 2711. Importantly, the I-129 concentrations determined for ten real samples provided by the Lan-Yu radioactive waste temporary storage site were found to be below the detection limit (0.011 mg/kg). This value was only approximately 30-70% of the values determined using the I-129/Cs-137 scaling factor. This means that using the I-129/Cs-137 scaling factor severely overestimates the I-129 concentration in these low-level radioactive wastes. We therefore suggest that a detailed re-inspection of the I-129/Cs-137 scaling factor should be performed to appropriately categorize these low-level radioactive wastes.

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Section: Comparison Of the Radioactivity Estimated By The Scaling Facmentioning

confidence: 99%

An improved analytical method for iodine-129 determination in low-level radioactive waste

et al. 2014

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“…128 I can be utilized in diagnostics researches with a significant reduction of radiation dose [10]. In this respect, various studies can be found in the literature [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Photonuclear Reaction Results of Energy Levels of Iodine Isotopes

Aygun¹,

Cesur²,

Doğru³

et al. 2017

Cumhuriyet Science Journal

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In this study, photonuclear reaction of 127 I has been studied by using bremsstrahlung photons of 18 MeV endpoint energy via a clinical linear accelerator. As a result of this, 127 I(γ,n) 126 I and 127 I(n,γ) 128 I reactions have been observed. The gamma photons emitted by the excited nuclei have been counted with an HPGe detector. The experimental data have been analyzed by using gf3 and ROOT spectrum programs and all the energy transitions have been calculated. The results have been compared with the literature values.

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