Status of Charged Particle Microbeams for Radiation Biology
نویسندگان
چکیده
منابع مشابه
Microbeams of heavy charged particles.
We have established a single cell irradiation system, which allows selected cells to be individually hit with defined number of heavy charged particles, using a collimated heavy-ion microbeam apparatus at JAERI-Takasaki. This system has been developed to study radiobiological processes in hit cells and bystander cells exposed to low dose and low dose-rate high-LET radiations, in ways that canno...
متن کاملRadiation reaction for a massless charged particle
We derive effective equations of motion for a massless charged particle coupled to the dynamical electromagnetic field having regard to the radiation back reaction. It is shown that unlike the massive case not all the divergences resulting from the self-action of the particle are Lagrangian, i.e. can be canceled out by adding appropriate counterterms to the original action. Besides, the order o...
متن کاملCharged-Particle Interactions: Radiation Loss, Range
The sudden deflection of an electron by the Coulomb field of nuclei can cause the electron to radiate, producing a continuous spectrum of x-rays called bremsstrahlung. The fraction of electron energy converted into bremsstrahlung increases with increasing electron energy and is greater for media of high atomic number. (This process is important in the production of x-rays in conventional x-ray ...
متن کاملRadiation from a charged particle and radiation reaction – revisited
We study the electromagnetic fields of an arbitrarily moving charged particle and the radiation reaction on the charged particle using a novel approach. We first show that the fields of an arbitrarily moving charged particle in an inertial frame can be related in a simple manner to the fields of a uniformly accelerated charged particle in its rest frame. Since the latter field is static and eas...
متن کاملRadiation Reaction and Renormalization for a Photon-Like Charged Particle
A renormalization scheme which relies on energy-momentum and angular momentum balance equations is applied to the derivation of effective equation of motion for a massless point-like charge. Unlike the massive case, the rates of radiated energymomentum and angular momentum tend to infinity whenever the source is accelerated. The external electromagnetic fields which do not change the velocity o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2007
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/58/1/009