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Figure 2 | EPJ Techniques and Instrumentation

Figure 2

From: Hybrid monitoring and measurement of concrete shielding activation at the ProtherWal proton therapy centre

Figure 2

Beam loss pattern along the beamline for a beam energy of 100 MeV. “Primary first hits”, in blue, represent the fraction of the primary beam that undergoes its first interaction. “Primary loss”, in red, represents the fractional beam losses per unit length. The energy deposition represents the energy deposited by the primaries and the secondaries. All the particles interact with the degrader (annotated “P1E”), resulting in the absence of downstream “primary first hits”

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