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Role of the interaction processes in the depth-dose distribution of proton beams in liquid water
| Content Provider | Semantic Scholar |
|---|---|
| Author | Garcia-Molina, Rafael Abril, Isabel Vera, Pablo De La Ioanna Kyriakou Emfietzoglou, Dimitris |
| Copyright Year | 2012 |
| Abstract | We use a simulation code, based on Molecular Dynamics and Monte Carlo, to investigate the depth-dose profile and lateral radial spreading of swift proton beams in liquid water. The stochastic nature of the projectile-target interaction is accounted for in a detailed manner by including in a consistent way fluctuations in both the energy loss due to inelastic collisions and the angular deflection from multiple elastic scattering. Depth-variation of the projectile charge-state as it slows down into the target, due to electron capture and loss processes, is also considered. By selectively switching on/off these stochastic processes in the simulation, we evaluate the contribution of each one of them to the Bragg curve. Our simulations show that the inclusion of the energy-loss straggling sizeably affects the width of the Bragg peak, whose position is mainly determined by the stopping power. The lateral spread of the beam as a function of the depth in the target is also examined. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://rua.ua.es/dspace/bitstream/10045/25481/1/2012_JPCS373(2012)012015_Garcia-Molina_Caen.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | AngularJS Electron Fatigue Hearing Loss, High-Frequency Lateral thinking Molecular dynamics Monte Carlo method Proton-Phosphate Symporters Protons Radial (radio) Simulation Stochastic Processes Stochastic process Swift (programming language) collision width |
| Content Type | Text |
| Resource Type | Article |
