PAC2013 - List of Authors (Zalel, S.)

Paper	Title	Page
THPSM10	Analysis of Propagated Effects in Proton Depth-Dose Distribution Curves Due To Initial Beam Energy Spread	1403
	P.A. Posocco, M. Aslaninejad, J.F. Piech, S. Zalel Imperial College of Science and Technology, Department of Physics, London, United Kingdom
	Funding: S. Zalel was supported by the Anglo Israel Association. Proton therapy treatment planning uses depth-dose distribution curves of single initial beam energies to create Spread spread Out Bragg Peaks (SOBP). These are used to target specific regions in the body. However, the initial energy spread of the beams leads to an uncertainty in beam energy, affecting the dose distribution. In this paper, previous work (M. Aslaninejad et al., 2011: 189–196) on the depth-dose distribution of proton beams using inelastic-collision cross sections of liquid water is extended into use with chromatic beams. The effect of the initial energy spread on depth-dose distribution curves, the distal dose and the SOBP are discussed. Limits on beam energy spread are suggested.

Paper

Title

Page

Analysis of Propagated Effects in Proton Depth-Dose Distribution Curves Due To Initial Beam Energy Spread

1403

P.A. Posocco, M. Aslaninejad, J.F. Piech, S. Zalel
Imperial College of Science and Technology, Department of Physics, London, United Kingdom

Funding: S. Zalel was supported by the Anglo Israel Association.
Proton therapy treatment planning uses depth-dose distribution curves of single initial beam energies to create Spread spread Out Bragg Peaks (SOBP). These are used to target specific regions in the body. However, the initial energy spread of the beams leads to an uncertainty in beam energy, affecting the dose distribution. In this paper, previous work (M. Aslaninejad et al., 2011: 189–196) on the depth-dose distribution of proton beams using inelastic-collision cross sections of liquid water is extended into use with chromatic beams. The effect of the initial energy spread on depth-dose distribution curves, the distal dose and the SOBP are discussed. Limits on beam energy spread are suggested.