Collisional Energy Loss of Fast Charged Particles in Relativistic Plasmas
نویسنده
چکیده
Following an argument by Kirzhnits we rederive an exact expression for the energy loss of a fast charged particle in a relativistic plasma using the quantum field theoretical language. We compare this result to perturbative calculations of the collisional energy loss of an energetic electron or muon in an electron-positron plasma and of an energetic parton in the quark-gluon plasma.
منابع مشابه
تاثیر یونها برتابش دولایههای نسبیتی در پلاسماهای اخترفیزیکی
As double layers (DLs) are one of the most important acceleration mechanisms in space as well as in laboratory plasmas, they are studied from different points of view. In this paper, the emitted power and energy radiated from charged particles, accelerated in relativistic cosmic DLs are investigated. The effect of the presence of additional ions in a multi-species plasma, as a real example of a...
متن کاملبررسی شتابدهی ذرات باردار از طریق بازاتصالی مغناطیسی در محیطهای پلاسمایی
Magnetic reconnection, which occurs in high conducting plasmas, changes the topology of magnetic field lines and converts magnetic energy into the kinetic and thermal energy of plasma and also accelerates charged particles. This phenomenon plays an important role in changing the dynamic of laboratory and space plasmas such as fusion tokamaks and sun’s corona. The electric and magnetic fields ge...
متن کاملStopping of Directed Energetic Electrons in High-Temperature Hydrogenic Plasmas
LLE Review, Volume 98 97 A basic problem in plasma physics is the interaction and energy loss of energetic charged particles in plasmas.14 This problem has traditionally focused on ions (i.e., protons, alphas, etc.), either in the context of heating and/or ignition in, for example, inertial confinement fusion (ICF)36 or the use of these particles for diagnosing implosion dynamics.7 More recen...
متن کاملAn approximate analytical solution of the Bethe equation for charged particles in the range of radiotherapy energy
Charged particles such as protons and carbon ions are an increasing tool in radiation therapy. However, unresolved physical problems prevent optimal performance, including estimating the deposited dose in non-homogeneous tissue, is an essential aspect of optimizing treatment. The Monte Carlo (MC) method can be used to estimate the amount of radiation, but, this powerful computing operation is v...
متن کاملOn stability of collisional coupling between relativistic electrons and ions in hot plasmas
The collisional coupling of relativistic electrons and non-relativistic ions in hot plasmas has been analysed. It is found that relativistic effects produce a new feature: while the condition Te < 3Ti guarantees a stable collisional coupling between electrons and ions in low-temperature plasmas, relativistic effects shift the upper Te/Ti boundary of stability to higher values. Moreover, for suf...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2000