نتایج جستجو برای: heavy ion
تعداد نتایج: 317162 فیلتر نتایج به سال:
Background: In radiation therapy with ion beams, lateral distributions of absorbed dose in the tissue are important. Heavy ion therapy, such as carbon-ion therapy, is a novel technique of high-precision external radiotherapy which has advantages over proton therapy in terms of dose locality and biological effectiveness.Methods: In this study, we used Monte Carlo method-based Geant4 toolkit to s...
With the increase in applications of heavy ions in various fields, the production of intense beams of highly charged heavy ions from ion sources become more and more important. For example, the ion sources are required to produce intense dc beams of highly charged heavy ions for accelerator facilities for radioisotope beam production, and intense short-pulsed beams for injection into synchrotro...
In Heavy-Fusion and in other applications, there is a need for high brightness sources with both high current and low emittance. The traditional design with a single monolithic source, while very successful, has significant constraints on it when going to higher currents. With the Child-Langmuir current-density limit, geometric aberration limits, and voltage breakdown limits, the area of the so...
A model for energy, pressure and flow velocity distributions at the beginning of ultra-relativistic heavy ion collisions is presented, which can be used as an initial condition for hydrodynamic calculations. Our model takes into account baryon recoil for both target and projectile, arising from the acceleration of partons in an effective field, F µν , produced in the collision. The typical fiel...
STUDY OBJECTIVES The purpose of this study was to investigate the effect of heavy-ion radiotherapy on pulmonary function in patients with clinical stage I non-small cell lung cancer (NSCLC) patients. DESIGN Retrospective study. SETTING Research Center Hospital for Charged Particle Therapy, National Institute of Radiological Sciences, Chiba, Japan. PATIENTS From a total of 81 patients who ...
Heavy-flavor jets are a unique tool to study dynamical evolution of QCD systems via heavy-flavor particles, allowing one access the original parton kinematics and separate out production fragmentation effects. In these proceedings, various jet results in pp , p A, AA collisions presented, extending scope studies discussed at this conference series, Strangeness Quark Matter.
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