Simultaneous determination of lead-210, gross beta and gross alpha activities of air filters by pulse shape discrimination liquid scintillation counting

1995 ◽  
Vol 194 (2) ◽  
pp. 403-409 ◽  
Author(s):  
F. Bou-Rabee ◽  
Y. Y. Bakir ◽  
H. Bem
Keyword(s):  
Pulse Shape ◽  
Liquid Scintillation ◽  
Scintillation Counting ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Gross Beta ◽  
Gross Alpha ◽  
Air Filters ◽  
Lead 210

Determination of 243Am by pulse shape discrimination liquid scintillation spectrometry

2006 ◽  
Vol 64 (5) ◽  
pp. 579-583 ◽  
Author(s):  
D. Alamelu ◽  
S.P.D. Bhade ◽  
P.J. Reddy ◽  
K.K. Narayan ◽  
P.M. Shah ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Liquid Scintillation ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Liquid Scintillation Spectrometry

scholarly journals Simultaneous determination of gross alpha/beta activities in water by liquid scintillation counting and its applications in the environmental monitoring

2021 ◽  
Author(s):  
Xiaoyun Li ◽  
Shaolin Wang ◽  
Hailin Lou ◽  
Jingshun Pan ◽  
Qian Dong ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Liquid Scintillation Counting ◽  
Liquid Scintillation ◽  
Scintillation Counting ◽  
Gross Beta ◽  
Gross Alpha ◽  
Source Method ◽  
Wide Range ◽  
Thick Source

Abstract Based on the standards of ISO11704-2018 and ASTM D7283-17, a method for simultaneous determination of gross alpha and gross beta activity concentrations in water by liquid scintillation counting (LSC) was established, which can be applied to various types of water samples in routine monitoring, such as drinking water, groundwater, geothermal water, seawater, and radioactive wastewater. The sample’s pH value and concentrated volume must be controlled to avoid quenching as much as possible. The validation tests show that the deviations of gross alpha and gross beta activities can satisfy quality control requirements in a wide range of activity ratios. For the actual samples, the measurement results of the LSC method are in good agreement with those of the thick source method. Moreover, the LSC method performs better in detection limit and a simpler pretreatment process than the thick source method.

scholarly journals Determination of 210Po in air filters from metallurgic industry

2019 ◽  
Vol 322 (3) ◽  
pp. 1351-1356 ◽  
Author(s):  
Grzegorz Szaciłowski ◽  
Jakub Ośko ◽  
Tomasz Pliszczyński
Keyword(s):  
Thermal Process ◽  
Liquid Scintillation ◽  
Aerosol Particles ◽  
Ferrous Metal ◽  
Acid Leaching ◽  
Scintillation Counting ◽  
Elevated Concentration ◽  
Air Filters ◽  
Co Precipitation

Abstract The elevated concentration of 210Po attached to aerosol particles inside a non-ferrous metal refinery was studied. The aerosols were collected on Petrianov or glass-fiber filters and subsequently subjected to radiochemical procedure consisting of acid leaching and concentration by micro co-precipitation with manganese oxide. For the activity determination alpha spectrometry and liquid scintillation counting (LSC) were applied. The obtained results showed that usually observed polonium concentration inside the plant was lower than 78 mBq m−3, however short spikes up to 7430 ± 710 mBq m−3 (related to the specific thermal process) were also observed.

Effect of Quench on Alpha/Beta Pulse Shape Discrimination of Liquid Scintillation Cocktails

2007 ◽  
Vol 92 (suppl 2) ◽  
pp. S105-S111 ◽  
Author(s):  
Timothy A. DeVol ◽  
Christopher D. Theisen ◽  
David P. DiPrete
Keyword(s):  
Pulse Shape ◽  
Liquid Scintillation ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Alpha Beta
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