Effective atomic numbers of some composite mixtures including borax

Effective atomic numbers for (PbO and Na 2B 4O 710H 2O) and (UO 2(NO 3) 2, and Na 2B 4O 710H 2O) mixtures against changing contents of PbO, Na 2B 4O 710H 2O, and UO 2(NO 3) 2 were measured in the X-ray energy range from 25.0 to 58.0 keV. The gamma rays emitted by a 241Am annular source have been sen...

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Bibliographic Details
Published in:Annals of nuclear energy 2010-07, Vol.37 (7), p.927-933
Main Authors: Bastug, Arif, Guerol, Ali, Icelli, Orhan, Sahin, Yusuf
Format: Article
Language:English
Subjects:
Adjustment
Atomic properties
Borax
Boron compounds
Effective atomic number
Emittance
Energy (nuclear)
Mass attenuation coefficients
Nuclear engineering
Nuclear reactor components
Nuclear reactors
Shielding materials
X-rays
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Summary:Effective atomic numbers for (PbO and Na 2B 4O 710H 2O) and (UO 2(NO 3) 2, and Na 2B 4O 710H 2O) mixtures against changing contents of PbO, Na 2B 4O 710H 2O, and UO 2(NO 3) 2 were measured in the X-ray energy range from 25.0 to 58.0 keV. The gamma rays emitted by a 241Am annular source have been sent on the absorbers which emits their characteristic X-rays to be used in transmission arrangement. The X-rays were counted by a Si(Li) detector with a resolution of 146 eV at 5.90 keV. The changing compositions of the compounds were assigned to be 0, 0.167, 0.333, 0.500, 0.666, 0.833 and total masses of the mixtures were adjusted to be identical. Also, the total effective atomic numbers of each mixture were estimated by using the mixture rule. The measured values were compared with estimated values for the mixtures.
ISSN:0306-4549
1873-2100
DOI:10.1016/j.anucene.2010.03.013