Results 41 to 50 of about 1,136,279 (386)
Radiation Oncology, 2017 Background Motion monitoring is essential when treating non-static tumours with pencil beam scanned protons. 4D medical imaging typically relies on the detected body surface displacement, considered as a surrogate of the patient's anatomical changes, a ...
Giovanni Fattori +6 more
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Frontiers in Psychiatry, 2023 ObjectiveMeaninglessness poses a significant psychological challenge for cancer patients, negatively affecting their quality of life and increasing the risk of suicide.
Shuman Wang +17 more
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Extending the Frontiers - Reconciling Accelerator and Cosmic Ray p-p Cross Sections [PDF]
Phys.Rev.D62:077501,2000, 2000 We simultaneously fit a QCD-inspired parameterization of all accelerator data on forward proton-proton and antiproton-proton scattering amplitudes, together with cosmic ray data (using Glauber theory), to predict proton-air and proton-proton cross sections at energies near \sqrt s \approx 30 TeV.
arxiv +1 more source
Proton-air and proton-proton cross sections [PDF]
EPJ Web of Conferences, 2013 Different attempts to measure hadronic cross sections with cosmic ray data are reviewed. The major results are compared to each other and the differences in the corresponding analyses are discussed. Besides some important differences, it is crucial to see that all analyses are based on the same fundamental relation of longitudinal air shower ...
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Nuclear Physics B, 1967 Abstract We calculate proton-proton Bremsstrahlung cross sections using the Tabakin separable potentials to generate off-shell nucleon-nucleon t-matrix elements in low partial waves and off-shell one-pion-exchange amplitudes for the higher partial waves.
W.A. Pearce, W.A. Gale, Ian Duck
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Journal of Medical Case Reports, 2022 Background Breast cancer infrequently metastasizes to the sternum as solitary metastasis. We experienced successful treatment with proton beam therapy for a case of sternal metastasis of breast cancer.
Yojiro Ishikawa +8 more
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Cross sections for pentaquark baryon production from protons in reactions induced by hadrons and photons [PDF]
Phys.Rev. C68 (2003) 045203, 2003 Using hadronic Lagrangians that include the interaction of pentaquark $\Theta^+$ baryon with $K$ and $N$, we evaluate the cross sections for its production from meson-proton, proton-proton, and photon-proton reactions near threshold. With empirical coupling constants and form factors, the predicted cross sections are about 1.5 mb in kaon-proton ...
arxiv +1 more source
Energy efficiency of the high-current diode under the blow-up mode evolution in the anode
Results in Physics, 2023 The results of experimental studies of energy fluxes released during the diode target blow-up initiated by a high-current relativistic electron beam are presented in the paper.
A. Adamenko +7 more
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Large-angle production of charged pions with 3-12.9 GeV/c incident protons on nuclear targets [PDF]
Phys.Rev.C77:055207,2008, 2008 Measurements of the double-differential charged pion production cross-section in the range of momentum 100 MeV/c < p < 800 MeV/c and angle 0.35 < \theta < 2.15 rad in proton-beryllium, proton-carbon, proton-aluminium, proton-copper, proton-tin, proton-tantalum and proton-lead collisions are presented.
arxiv +1 more source
The rate of the proton-proton reaction
The Astrophysical Journal, 1994 We re-evaluate the matrix element for the proton-proton reaction which is important for stellar-evolution calculations and for the solar-neutrino problem. We self-consistently determine the effect of vacuum polarization on the matrix element by first correcting the low-energy scattering data to account for vacuum polarization.
Marc Kamionkowski, John N. Bahcall
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