19 research outputs found
Deposited energy for chest wall irradiation with different compositions.
<p>Deposited energy for chest wall irradiation with different compositions.</p
Breast simulator with the representative structures.
<p>1-chest wall, 2-breast tissue and skin, 3-tissue expander and 4-lung.</p
HF values for irradiation at 0° for the three types of heterogeneity studied.
<p>HF values for irradiation at 0° for the three types of heterogeneity studied.</p
Treatment Planning isodose Curves for the two extremes volumes considered with and without heterogeneity correction algorithm applied.
<p>The curve of 5000cGy is the prescribed curve. (A) Planning Isodose curves for the first volume without heterogeneity correction and (B) with correction; (C) Planning Isodose curves for the last volume without heterogeneity correction and (D) with correction.</p
Breast phantom composed by five layers with the magnetic disk fixed at the first layer.
<p>Breast phantom composed by five layers with the magnetic disk fixed at the first layer.</p
Deposited energy curves calculated with MCNP for the three heterogeneity types studied on the structures representing chest wall and breast tissue and skin (A) 0°, (B) 90° and (C) for 270° irradiation, respectively.
<p>Deposited energy curves calculated with MCNP for the three heterogeneity types studied on the structures representing chest wall and breast tissue and skin (A) 0°, (B) 90° and (C) for 270° irradiation, respectively.</p
Illustration of the computational simulation of the magnetic valves.
<p>They were performed with the intersection between cylinders and planes with MCNPX code. A) Cylinder 1, planes 2 and 3 generate the magnetic disk; B) Cylinder 4, planes 5 and 6 generate the metal capsule; C) Cylinders 7, 8 and planes 6, 9 generate the external cup-shape structure that contains the magnetic disk in the expanders type I and II.</p
Results for density and dimensional stability tests for some breast phantoms.
<p>Results for density and dimensional stability tests for some breast phantoms.</p
Isodose crossplane calculated with (a) TPS and (b) measured with radiochromic film.
<p>Isodose crossplane calculated with (a) TPS and (b) measured with radiochromic film.</p
Dose x Depth Monte Carlo Simulations, comparing the two densities; black squares for 7.4g/cm<sup>3</sup> and red circles for 5.0g/cm<sup>3</sup>.
<p>Dose x Depth Monte Carlo Simulations, comparing the two densities; black squares for 7.4g/cm<sup>3</sup> and red circles for 5.0g/cm<sup>3</sup>.</p