Multi-slit triode ion optical system with ballistic beam focusing.
نویسندگان
چکیده
Multi-slit triode ion-optical systems with spherical electrodes are of interest for formation of intense focused neutral beams for plasma heating. At present, two versions of focusing multi-slit triode ion optical system are developed. The first ion optical system forms the proton beam with 15 keV energy, 140 A current, and 30 ms duration. The second ion optical system is intended for heating neutral beam injector of Tokamak Configuration Variable (TCV). The injector produces focused deuterium neutral beam with 35 keV energy, 1 MW power, and 2 s duration. In the later case, the angular beam divergence of the neutral beam is 20-22 mrad in the direction across the slits of the ion optical system and 12 mrad in the direction along the slits.
منابع مشابه
طراحی و شبیهسازی مجموعه شتابدهنده و متمرکز کننده الکترواستاتیکی
Electrostatic focusing lenses have a vast field of applications in electrostatic accelerators and particularly in electron guns. In this paper, we first express a parametric mathematical analysis of an electrostatic accelerator and focusing system for an electron beam. Next, we At design a system of electron emission slit, accelerating electrodes and focusing lens for an electron beam emitted f...
متن کاملInstallation of ion implantation beam line for 3 MV Tandem Pelletron
An MeV energy beam line for ion implantation of carbon and silicon to fashion optically-active nanocrystals has been constructed at the Ion Beam Modification and Analysis Laboratory at the University of North Texas (UNT). The implantation line is at 15 and consists of a set of slits to define the beam, a doublet quadrupole focusing lens, a 40 kV electrostatic ion beam raster scanner and target ...
متن کاملEmittance measurement of multi-species ion beam produced via two-step charge exchange process in a Li vapor cell
A Li vapor cell has successfully converted a He ion beam to a He ion beam by double charge exchange reaction. Emittance of the He ion beam and that of the He beam were independently measured to study emittance growth during the passage of the charge exchange cell. Each component was seperated by electrostatic deection after passing through a beam shaping slit. The result had shown that the emi...
متن کاملIntegration of micro-optical elements with top-end of fibers via focused ion beam direct fabrication [5636-21]
Integration of micro-optical elements (MOEs) with optical fiber at top-end was realized by use of focused ion beam (FIB) direct milling. The designed MOEs (micro-refractive lens, microdiffractive lens with continuous relief, and micro-gratings) were directly milled by the FIB with ion energy and ion beam current of 40 keV and 569 pA, respectively, in the core area of both single mode fiber and ...
متن کاملE-beam Triode for Multiple Submicrosecond
Externally controlled diffuse discharge switches offer the potential of submicrosecond opening time and high repetition rate. For the investigation of an electron-beam controlled diffuse discharge, an e-beam gun was constructed which allows submicrosecond, multiple pulse operation. The 200 kV, 100 cm2, e-beam with thermionic cathode is designed as a triode. The control grid is pulsed to generat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Review of scientific instruments
دوره 87 2 شماره
صفحات -
تاریخ انتشار 2016