Storage and injection of charged particles in an electrostatic trap
نویسنده
چکیده
2014 Ion confinement in an purely electrostatic ion trap is investigated. The trap consists of two concentric cylinders maintained at a potential difference and two electrically insulated end plates. If the length of the trap is long compared with the radial dimension of the trap, the radial potential distribution is practically logarithmic. The domain of ion confinement is derived by comparing the radial displacements at the apogee and the perigee of an ion orbit with the radii of the cylinders. The effect of a magnetic field superimposed along the trap axis is considered. In addition trapping of externally injected ions is studied numerically. The electrostatic trap is used to advantage, when it is required to store charge particles independent of their charge to mass ratio. Revue Phys, Appl.16 (1981) 44 -445 AOÛT 1981, PAGE 441
منابع مشابه
An Investigation on the Effects of Charged Polyacrylamide Injection on Asphaltene Deposition in Porous Media
This study has been investigated, the effects of three different polar polyacrylamides (anionic, cationic, and nonionic) on asphaltene deposition in porous media. All experiments were carried out in various dead oil flow rates (0.2, 0.1 and 0.02 cc/min) and different polymer concentrations (500, 2500, 4000 ppm). The results indicated that asphaltene precipitation was affected by the presence of...
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 کاملExperimental Study of Charging Efficiencies and Losses of Submicron Aerosol Particles in a Cylindrical Tri-Axial Charger
The object of the present work was to design, construct and evaluate a cylindrical tri-axial charger for charging of submicron aerosol particles by unipolar ions. The corona discharge characteristics, the intrinsic and extrinsic particle charging efficiencies, and the losses of aerosol particles were experimentally evaluated for particle diameters in the range between 50 nm and 500 nm under dif...
متن کاملElectrostatic analysis of the charged surface in a solution via the finite element method: The Poisson-Boltzmann theory
Electrostatic potential as well as the local volume charge density are computed for a macromolecule by solving the Poisson-Boltzmann equation (PBE) using the finite element method (FEM). As a verification, our numerical results for a one dimensional PBE, which corresponds to an infinite-length macromolecule, are compared with the existing analytical solution and good agreement is found. As a ma...
متن کاملپتانسیل الکتروستاتیک یک مولکول زیستی مارپیچی در رژیم دیبای- هوکل با در نظر گرفتن ناهمگنی دیالکتریک
Inside living cells, many essential processes involve deformations of charged helical molecules and the interactions between them. Actin filaments and DNA molecules are important examples of charged helical molecules. In this paper, we consider an impermeable double stranded charged molecule in the solvent. According to the nature, the dielectric constant of the molecule is considerably differe...
متن کامل