Determination of gross alpha and gross beta in soil around repository facility at Bukit Kledang, Perak, Malaysia

2018 ◽  
Author(s):  
Mohd Izwan Abdul Adziz ◽  
Khoo Kok Siong
Keyword(s):  
Gross Beta ◽  
Gross Alpha

Characterization of an array of gas-flow proportional counters for determination of gross alpha and gross beta in drinking water

2019 ◽  
Vol 14 (06) ◽  
pp. T06009-T06009
Author(s):  
O. Aviv ◽  
E. Daniely ◽  
Y. Barazani ◽  
T. Baziza ◽  
J. Koch
Keyword(s):  
Drinking Water ◽  
Gas Flow ◽  
Gross Beta ◽  
Gross Alpha ◽  
Proportional Counters

Determination of Gross Alpha and Gross Beta Activity Concentration in Bahe River Water Samples Within Xi'an Chanba Area

2020 ◽  
Author(s):  
Yao Qingxu ◽  
Huo Yonggang ◽  
Xu Peng ◽  
Yu Fengmei ◽  
Lv Ning
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Radioactivity Level ◽  
Gross Beta Activity ◽  
Source Method ◽  
Thick Source

Abstract As a screening procedure, gross alpha and gross beta activity have been developed to determine whether further analysis of water samples related to specific radionuclide is necessary. In China, the determination of gross alpha and gross beta in drinking water was generally based on the HJ standard method: HJ 898-2017, water quality — determination of gross alpha activity — thick source method, and HJ 899-2017, water quality — determination of gross beta activity — thick source method. In this study, 15 water samples from Bahe river in Chan Ba region of Xi’an in China, were pretreated and analyzed by BH1216-III low background alpha and beta scintillation counter. The water samples were collected nearby residential area, wetland park, water conservation district and urban sewage treatment plant as well as other important locations which probably influence on the radioactivity level. The values of the activity concentrations of the gross alpha and beta measured in the water samples ranged from less than LD to 0.183Bq/L with a mean of 0.077Bq/L and 0.073–0.151Bq/L with a mean 0.102Bq/L respectively. All values of samples were lower than the limit level of 0.500Bq/L for gross alpha and 1.000Bq/L for gross beta, indicating that the radioactivity level in Bahe water between Chan Ba region of Xi’an is basically within the normal environmental background.

scholarly journals Determination of Annual Effective Dose and Concentration Level of Gross Alpha “A” And Beta “B” In Three (3) Different Fish Feed Samples

2020 ◽  
pp. 1-4
Author(s):  
M S Anas ◽  
◽  
I Nura ◽  
K H Abubakar ◽  
E Onuh ◽  
...  
Keyword(s):  
Effective Dose ◽  
Concentration Level ◽  
Annual Effective Dose ◽  
Fish Feed ◽  
Gross Beta ◽  
Gross Alpha ◽  
Effective Doses ◽  
Gross Alpha And Beta ◽  
Feed Samples

This study was conducted for natural radioactivity of some fish feed samples in Nigeria, using gross alpha and beta method with protean instrument corporate (PIC) MPC 2000DP detector. The range of the gross alpha concentration for the sample, for the Uranium series was 0.0246 ± 0.0051 Bq/g to 0.0028 ± 0.0055 Bq/g, similarly for gross beta concentration ranges from 0.0651 ± 0.0104 Bq/g to 0.0621 ± 0.0100 Bq/g for the samples. The annual effective doses of the activities for the three sample A, B, and C which were 18.56 μSvy-1, 10.91 μSvy-1 and 17.20 μSvy-1 respectively. The results appeared to be below the standard annual effective dose of 70 μSvy-1 for humans as recommended by (UNSCEAR, 1977 and 1982). This research shows that consumers of fish have no risk of radioactivity ingestion in to the food chain, even though no amount of radiation is assumed to be totally safe because radiation is known to trigger or induce cancer

scholarly journals Natural and artificial (90Sr) radionuclides in some carbonated mineral waters used in Serbia

2013 ◽  
Vol 28 (3) ◽  
pp. 284-292 ◽  
Author(s):  
Marija Jankovic ◽  
Natasa Sarap ◽  
Dragana Todorovic ◽  
Jasminka Joksic
Keyword(s):  
Water Samples ◽  
Mineral Water ◽  
Mineral Waters ◽  
World Health ◽  
Reference Level ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Natural Activity

A radiological characterization of 7 different carbonated mineral water samples collected in the local supermarkets in the area of Belgrade (produced in Serbia) was carried out. Analysis included determination of gross alpha and gross beta activities. The obtained results showed that the natural activity concentrations of alpha and beta emitting radionuclides in carbonated mineral water samples were within World Health Organization recommended levels, except for the Heba Strong and Kiseljak samples where the beta activity exceeds 1 Bq/L. For these two water samples gamma spectrometry analysis was performed as well as determination of 90Sr by oxalic method. The instrumentation used to count the gross alpha and gross beta activities, as well as for 90Sr, was a/b low level proportional counter Thermo Eberline FHT 770 T. Gamma spectrometric measurements were performed using a HPGe Canberra detector with a counting efficiency of 20%. The annual effective dose equivalent due to ingestion of investigated waters was calculated for age group >17, and obtained values are lower than 0.1 mSv recommended reference level. Finally, a comparison of the investigated waters with worldwide data was made.

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