title: MCNP5 for proton radiography.
abstract: The developmental version of MCNP5 has recently been extended to provide for continuous-energy transport of high-energy protons. This enhancement involves the incorporation of several significant new physics models into the code. Multiple Coulomb scattering is treated with an advanced model that takes account of projectile and nuclear target form factors. In the next version, this model will provide a coupled sampling of both angular deflection and collisional energy loss, including straggling. The proton elastic scattering model is also new, based on recent theoretical work. Charged particle transport in the presence of magnetic fields is accomplished either by using transfer maps from the COSY INFINITY code (in void regions) or by using an algorithm adapted from the MARS code (in void regions or in scattering materials). Work is underway to validate and implement the latest versions of the Cascade-Exciton Model and the Los Alamos Quark-Gluon String Model, which will process inelastic nuclear interactions and generate secondary particles.
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM 87545, USA. hgh@lanl.gov
authors.forename: H Grady
authors.initials: HG
authors.lastname: Hughes
authors.forename: Forrest B
authors.initials: FB
authors.lastname: Brown
authors.forename: Jeffrey S
authors.initials: JS
authors.lastname: Bull
authors.forename: John T
authors.initials: JT
authors.lastname: Goorley
authors.forename: Robert C
authors.initials: RC
authors.lastname: Little
authors.forename: Lon-Chang
authors.initials: LC
authors.lastname: Liu
authors.forename: Stepan G
authors.initials: SG
authors.lastname: Mashnik
authors.forename: Richard E
authors.initials: RE
authors.lastname: Prael
authors.forename: Elizabeth C
authors.initials: EC
authors.lastname: Selcow
authors.forename: Arnold J
authors.initials: AJ
authors.lastname: Sierk
authors.forename: Jeremy E
authors.initials: JE
authors.lastname: Sweezy
authors.forename: John D
authors.initials: JD
authors.lastname: Zumbro
authors.forename: Nikolai V
authors.initials: NV
authors.lastname: Mokhov
authors.forename: Sergei I
authors.initials: SI
authors.lastname: Striganov
authors.forename: Konstantin K
authors.initials: KK
authors.lastname: Gudima
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D017076:Computer-Aided Design; D018499:Linear Energy Transfer; D015233:Models, Statistical; D009010:Monte Carlo Method; D011522:Protons; D011829:Radiation Dosage; D011835:Radiation Protection / Q000379:methods*; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D011859:Radiography / Q000379:methods*; D011874:Radiometry / Q000379:methods*; D012542:Scattering, Radiation; D012984:Software; D012985:Software Design; D014584:User-Computer Interface
chemical_list: D011522:Protons