Determination of Dose Rates from Homogeneously Distributed Beta,Gamma- and EC,Gamma-emitters in Phantom Organs Using a Liquid Scintillator

1978 ◽  
Vol 34 (4) ◽  
pp. 323-331 ◽  
Author(s):  
K. Tagder ◽  
I. Schmitz-Feuerhake
Keyword(s):  
Liquid Scintillator ◽  
Dose Rates

scholarly journals Analysis of the 40K levels in soil using gamma spectrometry

2005 ◽  
Vol 48 (spe2) ◽  
pp. 221-228 ◽  
Author(s):  
José Araújo dos Santos Júnior ◽  
Jorge João Ricardo Ferreira Cardoso ◽  
Cleomacio Miguel da Silva ◽  
Suêldo Vita Silveira ◽  
Romilton dos Santos Amaral
Keyword(s):  
Gamma Spectrometry ◽  
Absorbed Dose ◽  
Soil Samples ◽  
Spectrometry Method ◽  
Dose Rates ◽  
Elemental Concentrations ◽  
High Purity Germanium ◽  
Specific Activities ◽  
Potassium 40

Potassium-40 was determined in soil in an area with 40,000 m² situated in the western State of Pernambuco, Brazil. For radiometric measurements, the gamma spectrometry method with a high purity germanium (HPGe) detector was used. Sampling of 78 soil samples has been performed at intervals of 25 m. The specific activities of 40K were calculated based on the photopeak of 1.46 MeV. Values from 541 to 3,572 Bq kg-1 were obtained (mean of 1,827 Bq kg-1). These values allowed the determination of the elemental concentrations as well as the absorbed dose rates in air, 1 m above the ground. The values varied from 1.7 to 11.5% (mean of 6%) and from 23.4 to 154.3 nGy h-1 (mean of 79 nGy h-1), respectively.

Determination of Dose Rates from Beta Transmission Currents

1960 ◽  
Vol 31 (10) ◽  
pp. 1826-1826
Author(s):  
Arthur Bradley
Keyword(s):  
Dose Rates

Determination of Radioactive Nobel Gases with a Liquid Scintillator.

1964 ◽  
Vol 36 (11) ◽  
pp. 2077-2079 ◽  
Author(s):  
D. L. Horrocks ◽  
M. H. Studier
Keyword(s):  
Liquid Scintillator

Determination of dose rates from natural radionuclides in dental materials

2006 ◽  
Vol 91 (1-2) ◽  
pp. 15-26 ◽  
Author(s):  
I. Veronese ◽  
G. Guzzi ◽  
A. Giussani ◽  
M.C. Cantone ◽  
D. Ripamonti
Keyword(s):  
Natural Radionuclides ◽  
Dental Materials ◽  
Dose Rates

Thermoluminescence as a potential means of dating siliceous ocean sediments

1976 ◽  
Vol 13 (4) ◽  
pp. 593-596 ◽  
Author(s):  
D. J. Huntley ◽  
H. P. Johnson
Keyword(s):  
Radiation Dose ◽  
North Pacific ◽  
Deep Sea ◽  
Radiation Sensitivity ◽  
Single Peak ◽  
Dose Rates ◽  
Thermoluminescence Dating ◽  
Limiting Value

The natural thermoluminescence of siliceous shell separated from two North Pacific deep-sea cores has been measured. The thermoluminescence shows a single peak at ~240 °C, the intensity of which increases with depth up to a limiting value. Measurements of sample radiation-sensitivity and the determination of radiation dose rates are also presented. It is concluded that thermoluminescence dating is a potentially viable dating technique for such material.

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