نتایج جستجو برای: particle beam
تعداد نتایج: 281705 فیلتر نتایج به سال:
Two Aerodyne Aerosol Mass Spectrometers (QAMS) were deployed in Mexico City, during the Mexico City Metropolitan Area field study (MCMA-2003) from 29 March–4 May 2003 to investigate particle concentrations, sources, and processes. We report the use of a particle beam width probe (BWP) in the field to quantify potential losses of particles due to beam broadening inside the AMS caused by particle...
The present knowledge about hadrons produced in relativistic heavy ion collisions is compatible with chemical freeze-out happening when the energy density divided by the particle density reaches the value of 1 GeV. This observation is used to determine the energy dependence of the chemical freeze-out parameters Tch and μ ch B for beam energies varying between 1 and 200 A·GeV. The consequences o...
Plasma accelerators driven by particle beams are a very promising future accelerator technology as they can sustain high accelerating fields over long distances with high energy efficiency. They rely on the excitation of a plasma wave in the wake of a drive beam. To generate the plasma, a neutral gas can be field-ionized by the head of the drive beam, in which case the distance of acceleration ...
In a recent paper G.V. Stupakov and P. Chen[1] have advanced the possibility of beam-beam interaction suppression in circular colliders for heavy particles such as muons and protons, by introducing a plasma at the interaction point. More recently and independently, A. Skrinsky [2] has suggested to use flowing liquid Li for the same purpose in a muon collider. This is an alternative that is only...
The introduction of charged particle therapy in the hospitals could provide substantial improvements to external radiation therapy for cancer treatment. Many different types of accelerators have been proposed for installation in the hospitals, all with their own merits and disadvantages. In this report we discuss the requirements posed by charged particle therapy on the quality of the beam deli...
The present knowledge about hadrons produced in relativistic heavy ion collisions is compatible with chemical freeze-out happening when the energy density divided by the particle density reaches the value of 1 GeV. This observation is used to determine the energy dependence of the chemical freeze-out parameters Tch and μ ch B for beam energies varying between 1 and 200 A·GeV. The consequences o...
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