- Optimisation of field flatness and depth-dose for therapy electron beams.
Optimisation of field flatness and depth-dose for therapy electron beams.
Physics in medicine and biology (1981-05-01)
J R Marbach, P R Almond
PMID6787620
ABSTRACT
Curves relating beam energy, scattering foil thickness, central-axis depth-dose, and beam flatness have been generated using data taken on a Siemens 200A betatron. The curve set allows a single combination of tungsten foil thickness and electron beam energy to be chosen that will provide the optimum depth-dose distribution and sufficient field flatness for any specific clinical requirement.
MATERIALS
Product Number
Brand
Product Description
Tungsten, foil, 50x50mm, thickness 0.125mm, as rolled, 99.95%
Tungsten, foil, 100x100mm, thickness 0.125mm, as rolled, 99.95%
Tungsten, foil, light tested, 50x50mm, thickness 0.05mm, as rolled, 99.95%
Tungsten, foil, 5m coil, thickness 0.025mm, coil width 1mm, as rolled, 99.95%
Tungsten, foil, light tested, 100x100mm, thickness 0.025mm, as rolled, 99.95%
Tungsten, foil, light tested, 25x25mm, thickness 0.009mm, 99.95%
Tungsten, foil, light tested, 50x50mm, thickness 0.025mm, as rolled, 99.95%
Tungsten, foil, 0.5m coil, thickness 0.05mm, coil width 2mm, as rolled, 99.95%
Tungsten, foil, 0.5m coil, thickness 0.02mm, coil width .5mm, as rolled, 99.95%