A methodology to determine natural radioactivity by γ spectrometry without using calibrated standard samples

González, E. Redondo; Mainardi, Raúl T.; Grad, Gabriela B.; Bonzi, Edgardo V.

doi:10.1016/j.apradiso.2017.03.025

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…The activity level of 232 Th was determined from daughter 208 Tl (583 keV) and 228 Ac (911 keV), and that of 226 Ra was obtained from the gamma lines of 214 Pb (352 keV) and 214Bi (609 keV), and 40 K was determined directly from the photo-peaks at 1460 keV. For further details regarding radioactivity measurement and system setup, calibration and operation can be found elsewhere (Ramachandran and Mishra, 1989;Amin, 2012;Gonz alez et al, 2017;Caridi et al, 2019).…”

Section: Samples Collection and Spectroscopic Analysismentioning

confidence: 99%

Preliminary survey of ²²⁶Ra, ²³²Th and ⁴⁰K activity level and their cancer risk in some foodstuff, Sudan

Idriss

Elhassan

2020

BFJ

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PurposeThe purpose of this paper is to buildup baseline data for 226Ra, 232Th and 40K levels in different food samples and computes their cancer risk (CR).Design/methodology/approachThis report has been performed to buildup baseline data for 226Ra, 232Th and 40K levels in different food samples and computes their CR. 226Ra, 232Th and 40K activity levels were measured using ?-ray spectrometry based on high-purity germanium (HPGe).FindingsThe findings exhibited that the annual effective dose (AED) and CR due to 226Ra ingestion in foodstuff samples have shown the trends cereal > vegetable > meat > fruits > sesame. Meanwhile, (AED) and (CR) due to 40K displayed the trends vegetable > cereal > meat > fruits > sesame. Although the average value of radiological dose due to ingestion of some radionuclides slightly exceed the values of some foodstuff around the world. However, the overall average of (AED) for all foodstuff samples (226.6 µSv/y) was found to be far below the world average (AED) (300 µSv/y).Practical implicationsThe main contributor to the AED was 40K 85, 226Ra 9 and 232Th 6%. The computed magnitude values for CR owing to 226Ra, 232Th, 40K (1.3 × 10−5) lower than International Commission on Radiological Protection (ICRP) CR of (2.5 × 10−3) for the general public.Originality/valueThe main contributor to the AED was 40K 85 %, 226Ra 9% and 232Th 6%. The computed magnitude values for CR owing to 226Ra, 232Th, 40K (1.3 × 10−5) lower than ICRP CR of (2.5 × 10−3) for the general public.

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Section: Samples Collection and Spectroscopic Analysismentioning

confidence: 99%

Preliminary survey of ²²⁶Ra, ²³²Th and ⁴⁰K activity level and their cancer risk in some foodstuff, Sudan

Idriss

Elhassan

2020

BFJ

View full text Add to dashboard Cite

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Methods for tentative determination of presence of artificial nuclides in air using NuRMS EGS air sampler and WIMP 120 gross alpha/beta counter

Fiserova

Janda

2018

Journal of Environmental Radioactivity

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A methodology to determine natural radioactivity by γ spectrometry without using calibrated standard samples

Cited by 2 publications

References 9 publications

Preliminary survey of ²²⁶Ra, ²³²Th and ⁴⁰K activity level and their cancer risk in some foodstuff, Sudan

Preliminary survey of ²²⁶Ra, ²³²Th and ⁴⁰K activity level and their cancer risk in some foodstuff, Sudan

Methods for tentative determination of presence of artificial nuclides in air using NuRMS EGS air sampler and WIMP 120 gross alpha/beta counter

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A methodology to determine natural radioactivity by γ spectrometry without using calibrated standard samples

Cited by 2 publications

References 9 publications

Preliminary survey of 226Ra, 232Th and 40K activity level and their cancer risk in some foodstuff, Sudan

Preliminary survey of 226Ra, 232Th and 40K activity level and their cancer risk in some foodstuff, Sudan

Methods for tentative determination of presence of artificial nuclides in air using NuRMS EGS air sampler and WIMP 120 gross alpha/beta counter

Contact Info

Product

Resources

About

Preliminary survey of ²²⁶Ra, ²³²Th and ⁴⁰K activity level and their cancer risk in some foodstuff, Sudan

Preliminary survey of ²²⁶Ra, ²³²Th and ⁴⁰K activity level and their cancer risk in some foodstuff, Sudan