Stopping Power Calculations for Partially Stripped Projectiles in High Energy Region
نویسندگان
چکیده
The electronic stopping cross-section is calculated in the spirit of the Bethe theory. Interaction potential between projectile and target is regarded to have a Coulombic character and we have modified it to take into account velocity dependences on a number of bound electrons of projectile and an effective charge of projectile and target. These velocity dependences are obtained from the Bohr adiabatic criterion using the Thomas–Fermi atomic model. We have get the electronic stopping cross-section expression using the Bethe approximation; we obtained the stopping cross-section of C and Al for C, O, and Si ions from this expression and compared our results with experiment and other theoretical calculations.
منابع مشابه
Local Field Correction Effect on Dicluster Stopping Power in a Strongly Coupled Two-Dimensional Electron Gas System
We calculate the stopping power for heavy-ion diclusters moving in a strongly coupled two-dimensional electron gas system by using the local field corrected dielectric function at finite temperature. We obtain a parameterized local field correction factor based on a relation between the thermal compressibility and exchange-correlation energy in two-dimension. The interpolated parameter is deriv...
متن کاملLocal field corrections vs. Mermin dielectric function on proton stopping in plasmas
The energy loss of charged particles in a free electron gas is of considerable interest to actual slowing-down problems. This is a topic of relevance to understand the beam-target interaction in the contexts of particle driven fusion. The energy losses of ions moving in an electron gas can be studied through the stopping power of the medium. Large number of calculations of the stopping power of...
متن کاملThe Comparison of the shares of stopping power in a soft tissue-equivalent material
Introduction: Proton therapy is a type of radiation treatment that it uses protons to treat cancer. Because of the protons’ unique ability to distribute the radiation dose more directly to the tumor, it minimizes the damage to nearby healthy tissues. The rate of energy loss by the ion in the target is called stopping power. The total stopping power is sum nuclear and electroni...
متن کاملStopping of Slow Projectiles in Electron Gas 1
New analytical formulas for the electronic stopping power and the energy loss straggling of low velocity extended charge projectiles in the degenerate electron gas are calculated within the dielectric function method. The stopping and straggling effective charges Zeff of a projectile were analysed. They are found to differ one from the other and to depend on the electron gas density rs, on the ...
متن کاملApplication of Calorimetric Low Temperature Detectors (CLTD’s) for Precise Stopping Power Measurements of Heavy Ions in Matter
Precise data on electronic stopping powers, i.e. specific energy loss dE/dx, for heavy ions are of high interest in various fields of research [1]. Unfortunately the accuracy of theoretical ab-initio dE/dx-calculations is nowadays still unsatisfactory. Therefore, predictions of stopping powers are usually calculated by semi-empirical computer codes, which are based on best fits to available exp...
متن کامل