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Table 1 Parameterized values to optimize the energy degrader. Parameterized values to optimize the energy degrader for 10 × 10 cm2 and 15 × 15 cm2 cone size. r is the radius of top layer. T t is the top layer thickness. T b is the bottom layer thickness. T t + T b is equal to 1.0 cm

From: Design and evaluation of electron beam energy degraders for breast boost irradiation

10 × 10 cm2 cone

15 × 15 cm2 cone

 

r

T t

T b

 

r

T t

T b

ED-Pa

-

-

1.0

ED-Pa

-

-

1.0

ED-1

2

0.7

0.3

ED-1

2

0.6

0.4

ED-2

2

0.6

0.4

ED-2

3

0.6

0.4

ED-3

2

0.5

0.5

ED-3

6

`

0.4

ED-4

2

0.4

0.6

ED-4

4

0.3

0.7

ED-5

2

0.3

0.7

ED-5

6

0.3

0.7

  1. aED-P is a Lucite® slab plate, thickness of which is1.0 cm
  2. Highlighted bold ED-4 was selected as an optimal design
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Radiation Oncology

ISSN: 1748-717X

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