Radioactivity Measurements

2018 ◽  
pp. 57-72
Author(s):  
K. Buchtela
Keyword(s):  
Radioactivity Measurements

A compact NaI(Tl) with avalanche photodiode gamma spectrometer for in situ radioactivity measurements in marine environment

2021 ◽  
Vol 92 (3) ◽  
pp. 033301
Author(s):  
Zhenyu Sun ◽  
Fan Zhou ◽  
Zhe Cao ◽  
Ziheng Zhou ◽  
Xiaohu Wang ◽  
...  
Keyword(s):  
Marine Environment ◽  
Avalanche Photodiode ◽  
Gamma Spectrometer ◽  
Radioactivity Measurements

Studying of characteristics of the HPGe detector for radioactivity measurements

2013 ◽  
Vol 8 (10) ◽  
pp. P10027-P10027 ◽  
Author(s):  
D Demir ◽  
M Eroğlu ◽  
A Turşucu
Keyword(s):  
Hpge Detector ◽  
Radioactivity Measurements

The Measurement of Calcium Absorption and Absorption Rate with an External Arm Radioactivity Counter

1978 ◽  
Vol 54 (1) ◽  
pp. 93-97
Author(s):  
R. C. Smart ◽  
C. D. Holdsworth
Keyword(s):  
Absorption Rate ◽  
Calcium Absorption ◽  
Scintillation Counter ◽  
Total Calcium ◽  
Ratio Determination ◽  
Lead Shielding ◽  
Deconvolution Techniques ◽  
Serial Measurements ◽  
Radioactivity Measurements

1. A large-volume scintillation counter was used to measure calcium absorption from the ratio of forearm uptake of 47Ca after oral 47CaCl2 (administered with milk) to forearm uptake after intravenously administered 47CaCl2. 2. In some subjects serial measurements of both forearm uptake of 47Ca and blood 47Ca radioactivity were also recorded, and by using deconvolution both total calcium absorption and calcium absorption rate were determined. 3. The forearm ratio determination of 47Ca absorption correlated well with that obtained by deconvolution of either serial blood 47Ca or forearm 47Ca measurements provided that the forearm radioactivity measurements were made at least 8 h after the administrations of 47CaCl2. 4. Although the two deconvolution techniques gave similar estimates of total calcium absorption there were discrepancies between their measurements of calcium absorption rate. These discrepancies were reduced but not eliminated by the use of additional lead shielding around the Armac counter.

scholarly journals Ion chromatographic analysis of aqueous iodine species by conductivity and radioactivity measurements

2005 ◽  
Vol 93 (9-10) ◽  
Author(s):  
Dorothea Schumann ◽  
R. Grasser ◽  
R. Dressler ◽  
H. Bruchertseifer
Keyword(s):  
Chromatographic Analysis ◽  
Nuclear Power ◽  
Power Plants ◽  
Radioactive Iodine ◽  
Cooling Water ◽  
Molecular Iodine ◽  
New Device ◽  
Iodine Species ◽  
Radioactivity Measurements

SummaryA new device was developed for the identification of several iodine species in aqueous solution using ion chromatography. Iodide, iodate and molecular iodine can be determined. (The equipment allows both conductivity and radioactivity detections.) The method is applicable for the determination of radioactive iodine contaminations in the cooling water of nuclear power plants.

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