Physics Bucharest 2017

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Beam profiles with and without flattening filters.

Why do we have flattening filters?

Filtered beam profiles (dmax)

40x40 10x10

FFF beam profiles (dmax)

1,20

1,20

40x40

1,00

1,00

10x10

0,80

0,80

0,60

0,60

0,40

0,40

0,20

0,20

0,00

0,00

-250 -150 -50 50 150 250 distance (mm)

-250 -150 -50 50 150 250 distance (mm)

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