Angular distribution of evaporated protons from 50-MeV-range proton-nucleus reactions

Fragmentation in Proton-Nucleus Reactions from 100 to 1400 MeV

Energy and Angular Distribution of Electrons Ejected from Argon by 5-keV to 1.5-MeV Protons

Neutron beam characteristics from 50 MeV protons on beryllium using a continuously variable multi-leaf collimator.

The dose distributional properties of a p(50) Be neutron beam using a continuously variable multi-leaf collimator are presented and compared with a 6 MV photon beam. The differences in physical dose delivery between these two radiation modalities are generally insignificant for radiation therapy, and stringent comparisons of neutron and photon treatments should therefore be possible. The flexib...

Dose distribution of protons and flux of secondary particles in breast proton therapy.

Introduction: Proton therapy is newer therapeutic method for early stage breast cancer. Proton beams release most of their energy in the Bragg peak and then will be a rapid decline in their end. When protons interact with matter, produce secondary particles like neutrons and gammas, and these unwanted radiation has no beneficial effect and also is believed to increase the risk ...

THE RADIAL DIFFUSION COEFFICIENT OF 1.3 - 2.3 MeV PROTONS IN RECURRENT PROTON STREAMS

Direct estimates of the radial diffusion coefficient • for 1.3-2.3 MeV protons in rr interplanetary space are made by comparing simultaneous observations of the diffusive anisotropy and radial gradient of these particles within recurrent streams. The 1.3-2.3 MeV proton anisotropy has been measured at 1 AU by the Caltech Electron/Isotope Spectrometers on IMP-7 and 8 during recurrent proton event...