Radiochemical determination of lead-210 in environmental water samples using Cerenkov counting

Al-Marri, M. S.; Hamwi, A.; Mikhallaty, H.

doi:10.1007/bf02040268

Cited by 17 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polonium radioisotopes were then measured by (x spectrometry. Lead was precipitated as lead sulphate and the [3 activity of its daughter 21~ measured on a ~ proportional counter [7].…”

Section: Methodsmentioning

confidence: 99%

210Pb and 210Po in fossil fuel combustion at the Šoštanj thermal power plant (Slovenia)

Vreček

Benedik

2003

Czech J Phys

View full text Add to dashboard Cite

The main aim of the present study was to evaluate 21~ and 21~ emissions from the ~o~tanj TPP and to evaluate their mass balance in unit 4. Samples of coal, fly ash, slag and flue gases were analysed for 21~ and 21~ content. The results showed that these radionuclides are mostly concentrated in ash (71% and 81% for 21~ and 21~ respectively). Only a small part of the input activity was detected in flue gases. The activities of 21~ and 21~ in unit 4 were from 1.1 to 2.7 Bq m -3 and from 0.37 to 0.56 Bq m -a, respectively. The mass balance of the two radionuclides in unit 4 show only 6 and 10 % differences between the annual activities of the input and output samples.

show abstract

“…Polonium radioisotopes were then measured by (x spectrometry. Lead was precipitated as lead sulphate and the [3 activity of its daughter 21~ measured on a ~ proportional counter [7].…”

Section: Methodsmentioning

confidence: 99%

210Pb and 210Po in fossil fuel combustion at the Šoštanj thermal power plant (Slovenia)

Vreček

Benedik

2003

Czech J Phys

View full text Add to dashboard Cite

show abstract

“…Namely, high-energy beta emitter 210 Bi (

= 5.012(5) d,

= 1162.2(8) keV) emits electrons that have enough energy to produce Cherenkov radiation in water [ 8 ]. Cherenkov counting advantage lies in easy sample preparation since 210 Bi separation from 210 Pb is not necessary (the electrons emitted from 210 Pb are not able to generate Cherenkov radiation) but has the drawback of lower counting efficiencies than standard LSC methods, typically from 10% [ 9 ] up to 20% [ 10 ]. Unlike LSC, the generated Cherenkov spectrum is unaffected by the chemical quenching since no scintillation cocktail is added to the sample [ 11 ] and has a lower background count rate which provides acceptable detection limits [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

In Search for an Ionic Liquid with the Best Performance during 210Pb/210Bi Cherenkov Counting in Waters on an LS Counter

Stojković

Borović

Todorović

et al. 2022

IJERPH

View full text Add to dashboard Cite

The research presented in this paper aims to investigate the performance of several newly synthesized ionic liquids during 210Pb/210Bi detection in water on a liquid scintillation spectrometer Quantulus 1220 via Cherenkov counting. These experiments have been triggered by the recent reports that certain ionic liquids can act as wavelength shifters, thus significantly increasing the detection efficiency of Cherenkov radiation. The benefit of ionic liquid’s addition to the analysed samples is reflected in the detection limit’s decrement during 210Pb quantification, which is pertinent considering naturally low levels of 210Pb in aqueous samples. Firstly, it was discovered that ionic liquid, 1-butyl-3-methylimidazolium salicylate, is more efficient than the previously explored 2-hydroxypropylammonium salicylate. Consequently, the impact of a few other ionic liquids on Cherenkov counting efficiency with the same cation group (1-butyl-3-methylimidazolium benzoate, 1-butyl-3-methylimidazolium 3-hydroxybenzoate and 1-butyl-3-methylimidazolium 4-hydroxybenzoate) was also explored to test their potential influence. Molecular simulations have been carried out to reveal which structures of ionic liquids assure wavelength-shifting behavior. The obtained results confirmed that, among the investigated ones, only ionic liquids with the salicylate anion exhibited a wavelength shifting effect.

show abstract

Scintillation Detectors

Garcı́a-León

2022

Detecting Environmental Radioactivity

View full text Add to dashboard Cite

Radiochemical determination of lead-210 in environmental water samples using Cerenkov counting

Cited by 17 publications

References 7 publications

210Pb and 210Po in fossil fuel combustion at the Šoštanj thermal power plant (Slovenia)

210Pb and 210Po in fossil fuel combustion at the Šoštanj thermal power plant (Slovenia)

In Search for an Ionic Liquid with the Best Performance during 210Pb/210Bi Cherenkov Counting in Waters on an LS Counter

Scintillation Detectors

Contact Info

Product

Resources

About