Results 121 to 130 of about 46,456 (165)

Improved techniques for measuring x-ray mass attenuation coefficients

SPIE Proceedings, 2004
We have applied the x-ray extended-range technique (XERT) to measure mass attenuation coefficients over one order of magnitude more accurately than previously reported in the literature. We describe here the application of the XERT to the investigation of a number of systematic effects which has enabled us to ensure that these recent measurements are ...
de Jonge, M. D., Tran, Chanh Quoc., Chantler, C. T., Barnea, Z.   +3 more
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Usefulness of photon mass attenuation coefficients in elemental analysis

Nuclear Instruments and Methods, 1978
Abstract 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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Determination of Mass Attenuation Coefficient for some Technetium‐99m Compounds

Macromolecular Symposia, 2020
Abstract Mass attenuation is a measure of the average number of interaction between incident photons and the matter that occur in a given mass per unit area thickness of the substance. Hence, the importance of mass attenuation coefficient is found in different fields viz., radiation shielding, medical fields, aeronautical engineering,
A. Manjunath, A. Ashwini, B. R. Kerur, G. M. Pushpanjali   +3 more
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Determination of Mass Attenuation Coefficients of Some Semiconductor and Biological Samples

Analytical Letters, 2010
The mass attenuation coefficients for TlGaSe2, GaAs, GaSe, InSe, InSe:Al, InSe:Cd, InSe:Er, InSe:Ho, InSe:Sn, Si single crystals, human teeth, and different filling materials have been determined at different X-ray energies. We utilized X-ray absorption technique and a gravimetric method to determine these coefficients.
EKİNCİ, Neslihan, GÜRBULAK, Bekir, DURNA, Doğan, GÜROL, Ali   +3 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, 1987
Abstract 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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Observations on the experimental determination of mass attenuation coefficients

Annals of Nuclear Energy, 2006
Abstract 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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Study on dependence of partial and total mass attenuation coefficients

Journal of Quantitative Spectroscopy and Radiative Transfer, 2005
Abstract The partial and total mass attenuation coefficients μ / ρ ( cm 2 g - 1 ) of photons at energy of 1 keV–100 GeV have been calculated as a function of atomic number and photon energies using the XCOM program (version 3.1) and data base and the calculated results were compared with the measurement.
Mavi, B, Akkurt, A, Akkurt, I, Yalim, HA, Basyigit, C, Kilincarslan, S   +5 more
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Determination of Mass Attenuation Coefficients for CuInSe2 and CuGaSe2 Semiconductors

AIP Conference Proceedings, 2007
This 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, Uǧur Çevik, Hasan Baltaş, Emin Bacaksiz   +3 more
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The measurement of total mass attenuation coefficients of CoCuNi alloys

Journal of Quantitative Spectroscopy and Radiative Transfer, 2004
Abstract The total mass attenuation coefficients for Co, Cu, Ni elements and CoCu, CoCuNi alloys were measured at different energies with 11.88, 13.93, 17.59, 21.09 and 26.00 keV emitted an 241 Am point source using transmission arrangement. The gamma rays were counted by a Si(Li) detector with a resolution of 160 eV at
Karahan, IH, Bakkaloglu, OF, Seven, Sabriye   +2 more
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Determination of mass attenuation coefficient of low-Z dosimetric materials

Radiation Effects and Defects in Solids, 2014
The mass attenuation coefficients of some low-Z dosimetric materials with potential applications in dosimetry, medical and radiation protection have been investigated using the Monte Carlo simulation code Monte Carlo N-Particle (MCNP). Appreciable variations are noted for the mass attenuation coefficient by changing the photon energy.
A.M. El-Khayatt, A.M. Ali, Vishwanath P. Singh, N.M. Badiger   +3 more
openaire   +1 more source