Results 241 to 250 of about 226,375 (294)
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Linear attenuation coefficients for compensator based imrt
Australasian Physics & Engineering Sciences in Medicine, 2007With rapid technological improvements in computer driven 3-D radiotherapy treatment planning systems (RTPS) the use of compensating filters for intensity modulated radiation therapy (IMRT) will dramatically increase the ease of treatment. The procedure for commissioning .decimal (Sanford, Florida) compensators involved the measurement of the effective ...
T, Bartrum +3 more
openaire +2 more sources
Calculation of Linear Attenuation Coefficients of Algerian Silica Sand (ASS)
Advanced Science, Engineering and Medicine, 2020Radiation is an important phoneme and thus radiation shielding is one of the most popular subjects for researchers. Sand is the main materials to produce besides many things also construction materials. It may also be used as a decorative material and therefore it is important to know its radiation shielding parameters.
Iskender Akkurt +2 more
openaire +1 more source
Ultrasonic computed tomography reconstruction of the attenuation coefficient using a linear array
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2005The attenuation coefficient distribution and sound velocity distribution in the breast can be used to complement B-mode ultrasound imaging in the detection of breast cancer. This study investigated an approach for reconstructing the attenuation coefficient distribution in the breast using a linear array.
Huang, Sheng-Wen, Li, Pai-Chi
openaire +2 more sources
Physics in Medicine and Biology, 2004
A novel parameterization of x-ray interaction cross-sections is developed, and employed to describe the x-ray linear attenuation coefficient and mass energy absorption coefficient for both elements and mixtures. The new parameterization scheme addresses the Z-dependence of elemental cross-sections (per electron) using a simple function of atomic number,
openaire +2 more sources
A novel parameterization of x-ray interaction cross-sections is developed, and employed to describe the x-ray linear attenuation coefficient and mass energy absorption coefficient for both elements and mixtures. The new parameterization scheme addresses the Z-dependence of elemental cross-sections (per electron) using a simple function of atomic number,
openaire +2 more sources
Linear attenuation coefficients of tissues from 1keV to 150keV
Radiation Physics and Chemistry, 2014Abstract The linear attenuation coefficients and three interaction processes have been computed for liver, kidney, muscle, fat and for a range of x-ray energies from 1 keV to 150 keV. Molecular photoelectric absorption cross sections were calculated from atomic cross section data.
openaire +2 more sources
Near K-edge linear attenuation coefficients for Si, SiO2 and Si3N4
Radiation Physics and Chemistry, 2002Abstract We present tabulated near K-edge linear attenuation coefficients for a range of materials commonly used in MOS construction; namely, crystalline silicon (Si-c), amorphous silicon (Si-a), amorphous silicon dioxide (SiO 2 -a) and amorphous silicon nitride (Si 3 N 4 -a).
Alan Owens, G.W Fraser, S.J Gurman
openaire +1 more source

