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Electron Beam Therapy Clinical and Practical Aspects
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by tcc, 2011-04-21 11:35, 人氣(6352)
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1.
Electron Beam TherapyClinical and Practical Aspects
2.
Slide 2
3.
The general shape of the central axis depth dose curve for electron with a more less uniform dose followed by a rapid drop-off dose offers a distinct advantage over other modalities
4.
Electron Interactions
5.
Electron Interactions
6.
Electron Scattering
7.
Pencil Beam Characteristics
8.
Features of Central Axis Depth Dose Distribution
9.
Energy Determination
10.
Energy Determination
11.
Energy Determination
12.
Features of Central Axis Depth Dose Distribution
13.
Energy Determination
14.
Energy Determination
15.
Output Factors
16.
Output Factors
17.
Output Factors
18.
Electron Applicator Dose rates: in cGy/MU
19.
Depth Dose and Energy
20.
Percent surface dose for electrons increases with energy.
21.
Depth Dose and Field Size
22.
Central Axis Depth Dose Distribution
23.
Depth Dose: Bremsstrahlung
24.
Isodose Distributions
25.
Depth Dose: Bremsstrahlung
26.
Isodose Distributions
27.
Isodose Distributions
28.
Isodose Distributions
29.
Isodose Distributions
30.
Isodose Distributions
31.
Slide 25
32.
Isodose Distributions
33.
Isodose Distributions
34.
Beam Flatness and Symmetry
35.
Beam Flatness and Symmetry
36.
Electron Source Position
37.
Slide 31
38.
Slide 32
39.
Electron Source Position
40.
Depth Dose and Air Gap
41.
Abutment for Electron Beams
42.
Field Abutment Electron Field - Photon Field
43.
Abutment for Electron Beams
44.
Field Abutment Electron Field - Photon Field
45.
Effect of Oblique Incidence
46.
Effect of Oblique Incidence
47.
Extended SSDs
48.
Irregular Surface Correction
49.
Effect of Sharp Irregularities: Scatter Disequilibrium
50.
Field Shaping, External & Internal Shielding
51.
Field Shaping, External & Internal Shielding
52.
Internal Shielding: Electron Backscatter
53.
Relative Backscatter Intensity vs Thickness of Absorber (Polystyrene)
54.
Bolus
55.
Slide 47
56.
Slide 48
57.
Slide 49
58.
Inhomogeneity Corrections
59.
Inhomogeneity Corrections
60.
Inhomogeneity Corrections
61.
Inhomogeneity Correction
62.
Slide 54
... [more]
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