Premium
Multibody collision contribution to the slowing down of charged particles through metals
Author(s) -
Molinari V.,
Teodori F.
Publication year - 2015
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.2592
Subject(s) - physics , charged particle , range (aeronautics) , coulomb , collision , momentum (technical analysis) , classical mechanics , particle (ecology) , fokker–planck equation , statistical physics , differential equation , electron , ion , nuclear physics , quantum mechanics , computer science , aerospace engineering , oceanography , computer security , finance , geology , engineering , economics
Investigating charged particle transport through solid matter is important in those fields, such as particle induced x‐ray emission analysis, where quantifying and identifying the reactions produced in the medium are of fundamental interest. A rigorous approach by solving the transfer equation means to face many difficulties most of which arise from the long range nature of the Coulomb interactions, involving more than one particle simultaneously. The common practice of neglecting the multibody collisions, though correct for rarefied neutral gases, often leads to very poor approximations, when charged particles move through dense matter. Here, we discuss a numerical simulation of the Fokker–Planck equation where the multibody collisions are taken into account. The model allows to calculate point‐wise the distribution of energy and momentum transferred to the target. Copyright © 2015 John Wiley & Sons, Ltd.