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Mass attenuation coefficients of X-rays in different medicinal plants
Applied Radiation and Isotopes, 2010The mass attenuation coefficients of specific parts of several plants, (fruits, leaves, stem and seeds) often used as medicines in the Indian herbal system, have been measured employing NaI (TI)) detector. The electronic setup used is a NaI (TI) detector, which is coupled to MCA for analysis of the spectrum. A source of (241)Am is used to get X-rays in
R B, Morabad, B R, Kerur
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Mass attenuation coefficient of chromium and manganese compounds around absorption edge
Journal of X-Ray Science and Technology, 2009The total mass attenuation coefficient for Potassium dichromate, Potassium chromate and Manganese acetate compounds are measured at different photon energies 5.895, 6.404, 6.490, 7.058, 8.041 and 14.390 keV using Fe-55, Co-57 and ^{241}Am source with Copper target, radioactive sources.
, Sharanabasappa +4 more
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Observations on the experimental determination of mass attenuation coefficients
Annals of Nuclear Energy, 2006Abstract This article addresses certain aspects of planning, performing, analyzing and reporting experiments designed to determine mass attenuation coefficients. The aim is to encourage experimentalists to add value from the user’s perspective. For illustrative purposes two recent papers from this journal are taken as examples.
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Photon mass attenuation and energy-absorption coefficients
The International Journal of Applied Radiation and Isotopes, 1982Mass attenuation coefficients μ/ϱ and mass energy-absorption coefficients μ cn/ϱ are tabulated in units of m 2 kg −1 for photon energies 1 keV to 20 MeV for 40 elements ranging from hydrogen (Z= 1) to uranium (Z= 92). In addition, μ/ϱ and μ cn /ϱ values are tabulated over this same energy range for 45 mixtures and compounds of dosimetric interest ...
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Usefulness of photon mass attenuation coefficients in elemental analysis
Nuclear Instruments and Methods, 1978Abstract Recent worldwide interest in computerised tomography has led us to carry out a reappraisal by calculation of the method of elemental analysis based on the measurement of the change in the photon mass attenuation coefficient of an element, a compound or a mixture when an impurity is introduced into the matrix.
Kypros Kouris, Nicholas M. Spyrou
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Mass attenuation coefficients of size-fractioned soil
Journal of Radioanalytical and Nuclear Chemistry Letters, 1990Experimental determinations of mass-attenuation coefficients for soils of various grain sizes are presented. The coefficient values were found to change slightly with particle size, but, overall, resemble values from other studies. The slopes of mass-attenuation coefficients vs.
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Mass Attenuation Coefficients for Plastic Pilot-B Scintillator
Review of Scientific Instruments, 1971Mass attenuation coefficients of the commercial plastic Pilot-B scintillator have been determined as a function of energy. Sources emitting gamma rays with energies of 0.36, 0.66, 0.80, and 1.33 MeV were used. The results indicate strong absorption in the low energy region and a smooth nonlinear decrease in the mass attenuation coefficients with ...
Carl H. Hayn, Daniel E. Carroll
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Determination of Mass Attenuation Coefficients for CuInSe2 and CuGaSe2 Semiconductors
AIP Conference Proceedings, 2007This work presents mass attenuation coefficients values of CuInSe2 and CuGaSe2 semiconductor thin films commonly used in photovoltaic devices. The mass attenuation coefficients were measured at different energies from 11.9 to 37.3 keV by using the secondary excitation method.
Ahmet Çelik +3 more
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Mass attenuation coefficients of beta particles in 4π geometry
Physica B+C, 1988The mass attenuation coefficients μ/ϱ of beta particles of end point energy E0 ranging from 0.16–2.3 MeV are determined adopting a 4π geometrical configuration, where the source is sandwiched between thin foils of aluminium as absorbers and the sandwich is kept in a 4π gas flow proportional counter for measuring transmitted beta particles. An empirical
R. Nathuram +2 more
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A method for calculating mass-attenuation coefficients of beta particles
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, 1987Abstract A new method to calculate mass-attenuation coefficients of β− and β+ particles of energies from 0.25 to 5.0 MeV for elemental absorbers is described. This method is based upon the interactions of β− and β+ particles with matter and the use of the varying transmission limit for different absorbers.
Bhupender Singh, R.K. Batra
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