BIOMAT Database Logo BIOMAT Database Logo

Separation and activity standardization of 226Ra by 4πα liquid scintillation counting. 2022

Richard Bluďovský, and Vlasta Suková
Czech Metrology Institute (CMI), Regional Inspectorate Prague, Radiová 1, 102 00 Prague 10, Czech Republic. Electronic address: rbludovsky@cmi.cz.

The 226Ra standardization method is based on the removal of 222Rn by intensive venting and subsequent separation of radon daughter decay products on a column packed with lead filings, 226Ra remains in the eluate. The eluate was repeatedly measured by LSC, and the measured values were corrected for the increase in the activity of the 226Ra daughter products since the separation was completed. The method was applied to EB type solutions from CMI production. The 226Ra activity was determined with an uncertainty better than 0.6.

UI MeSH Term Description Entries
D011883 Radium A radioactive element of the alkaline earth series of metals. It has the atomic symbol Ra and atomic number 88. Radium is the product of the disintegration of URANIUM and is present in pitchblende and all ores containing uranium. It is used clinically as a source of beta and gamma-rays in radiotherapy, particularly BRACHYTHERAPY.
D011886 Radon A naturally radioactive element with atomic symbol Rn, and atomic number 86. It is a member of the noble gas family found in soil, and is released during the decay of RADIUM. Actinon,Thoron (Element)
D012015 Reference Standards A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, and procedures used in diagnosis and therapy. Standard Preparations,Standards, Reference,Preparations, Standard,Standardization,Standards,Preparation, Standard,Reference Standard,Standard Preparation,Standard, Reference
D012588 Scintillation Counting Detection and counting of scintillations produced in a fluorescent material by ionizing radiation. Scintillation Counters,Counter, Scintillation,Counters, Scintillation,Counting, Scintillation,Scintillation Counter
D014875 Water Pollutants, Radioactive Pollutants, present in water or bodies of water, which exhibit radioactivity. Pollutants, Radioactive Water,Radioactive Water Pollutants
D017687 Radon Daughters Short-lived radioactive decay products of radon that include 216-Po, 214-Pb, 214-Bi, and 214-Po. They have an effective half-life of about 30 minutes and are solids that can deposit on the bronchial airways during inhalation and exhalation. This results in exposure of the respiratory airways to alpha radiation and can lead to diseases of the respiratory system, including lung cancer. (From Casarett and Doull's Toxicology, 4th ed, p740) Radon Daughter Nuclides,Radon Decay Products,Radon Progeny,Thoron Daughter Nuclides,Thoron Daughters,Thoron Decay Products,Thoron Progeny,Daughter Nuclides, Radon,Daughter Nuclides, Thoron,Daughters, Radon,Daughters, Thoron,Decay Products, Radon,Decay Products, Thoron

Related Publications

Richard Bluďovský, and Vlasta Suková
Primary standardization of 212Pb activity by liquid scintillation counting.
December 2022, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Richard Bluďovský, and Vlasta Suková
Primary standardization of 224Ra activity by liquid scintillation counting.
January 2020, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Richard Bluďovský, and Vlasta Suková
Standardization of radium-223 by liquid scintillation counting.
January 2010, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Richard Bluďovský, and Vlasta Suková
Activity standardization by liquid scintillation counting and half-life measurements of 90Y.
May 2004, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Richard Bluďovský, and Vlasta Suková
Determination of 226Ra and 224Ra in drinking waters by liquid scintillation counting.
April 1997, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Richard Bluďovský, and Vlasta Suková
Improved activity standardization of 90Sr/90Y by means of liquid scintillation counting.
February 2021, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Richard Bluďovský, and Vlasta Suková
Standardization of electron-capture radionuclides by liquid scintillation counting
March 2000, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Richard Bluďovský, and Vlasta Suková
Standardization of 32P/33P and 204Tl by liquid scintillation counting.
January 2004, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Richard Bluďovský, and Vlasta Suková
Standardization of Ga-68 by coincidence measurements, liquid scintillation counting and 4πγ counting.
September 2012, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Richard Bluďovský, and Vlasta Suková
Standardization of Tc-99 by three liquid scintillation counting methods.
May 2014, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine,
Copied contents to your clipboard!