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Table 1 Parameters of the initial electron beam used in the simulations of the CL21 with penelope. The values of the penelope  transport parameters C1 and C2 used for the condensed simulation of electrons in the target are also shown

From: Monte Carlo simulation of the Varian TrueBeam flattened-filtered beams using a surrogate geometry in PRIMO

Beam

\(\mathbf{E}_{\mathbf{0}}\) (MeV)

\({\varvec{\sigma}} _\mathbf{E}\) (MeV)

\(\sigma _\mathbf{R}\) (cm)

\({\varvec{\epsilon}}\) (mrad)

C1 = C2 (MeV) (\(10^{-3}\))

6

6.18

0.053

0.072

1

20

8

8.74

0.074

0.089

1

9

10

10.7

0.091

0.085

1

8

15

13.5

0.115

0.061

1

2

  1. See the text for a description of the parameters