A generalpurpose threedimensional 3d simulation code ibsimu for charged particle optics with space charge is under development at jyfl. The term optics is used because magnetic and electrostatic lenses act upon a charged particle beam similarly to optical lenses upon a light beam electron optics calculations are crucial for the design of electron microscopes and particle accelerators. Simulation analysis of a miniaturized electron optics of the. Its expanded versatility and power allow the simulation of highly complex systems, interactive parameter manipulation with immediate feedback, and multi. New features and improvements, examples of cs and cc correctors. Some synchrotron radiation source and xray optics simulation software and activities o. Simulation of particle optics electron beams and electron. Ion beam simulator library for ion optics, plasma extraction and space charge dominated ion beam transport. Raytrace, for teaching geometrical optics, gassim is a molecular simulation program, elf is an electric field and equipotential plotter. Intmag calculates 2d rectangular or axisymmetric magnetic fields by integration from contributions of real filaments in. We developed a new type of electron trajectories simulation inside a complete model of a modern transmission electron microscope tem. Eod electron optical design software for design of charged particle optics devices. The wave optics method that we use for simulation of grazingincidence mirrors is based on the local stationaryphase approximation canestrari et al. Electron beams and electron optics egn2 is the most reliable and most established electron gun and trajectory optics program around the world.
Discrete coulomb interactions in lithography columns have been modelled with a manybody montecarlo simulation, and various new software features will be described, including the treatment of cell projection systems, and space charge interaction effects in. Frank has been joined by ryan oneill, working on the further development of the software. Ime software provides physics educational software. Simulation software for designing electron and ion beam equipment. Dissertation or thesis electron optics simulation for. Egun electron optics simulations egun is a world famous simulation tool, developed by bill herrmannsfeldt at stanford linear accelerator center slac, for the numerical simulation of electron guns, including space charge, childlangmuir and fowlernordheim starting routines and 3d relativistic trajectory calculation in 2d rectangular or axially symmetric electric and. However, cpo differs fundamentally in its more powerful and accurate methods of calculation boundary element method, and it offers welltested spacecharge, cathode emission. In this dissertation, electron optics simulation for designing carbon nanotube cnt based field emission xray source for medical imaging applications will be presented. Tolerance computes aberrations due to machining errors in lenses and deflectors. Simulation analysis of a miniaturized electron optics of. The ucla plasma simulation group has an extensive history in developing and using pic software. Eod electron optical design software, electron and ion optics.
Predicting charged particle trajectories simulation helps researchers obtain electromagnetic field solutions for predicting charged particle trajectories in a wide range of industrial, medical and research applications. This wikibook will try to explain principles of charged particle optics. Tolerance computes aberrations due to machining errors in lenses and. Charged particle optics wikibooks, open books for an open world. Eod electron optical design software for design of charged particle optics devices eod is program integrating software for particle optics computations spoc programs mld, eld, mmd, emd and trc eod is based on potential computation with wellestablished first order finite element method, allowing to solve the 2d potential with high accuracy. Free optics simulation programs physics stack exchange. Egun is a world famous simulation tool, developed by bill herrmannsfeldt at stanford linear accelerator center slac, for the numerical simulation of electron guns, including space charge, childlangmuir and fowlernordheim. This article describes the wavepropagator wpg package, a new interactive software framework for coherent and partially coherent xray wavefront propagation simulations. The package has been developed at european xfel for users at the existing and emerging freeelectron laser fel facilities, as well as at the thirdgeneration synchrotron. Electron optics simulation for designing carbon nanotube. Electronbeam sources and chargedparticle optics 1995. Simulation of electronoptical system in color monitor tube authors.
Various upgrades allow application to a large range of systems including combinations of round lenses, deflectors and stigmators, multipole systems, electron mirrors and wien filters. Ansys electromagnetic field simulation helps you design innovative electrical and electronic products faster and more costeffectively. It provides model classes for optical components, surfaces and materials. Eod electron optical design software, electron and ion. It enables building optical systems by creating and placing various optical components in a 3d space and simulates light propagation through the system.
Simion 8 ion and electron optics program the industry standard for ion optics simulation. Egun is a world famous simulation tool, developed by bill herrmannsfeldt at stanford linear accelerator center slac, for the numerical simulation of electron guns, including space charge, childlangmuir and fowlernordheim starting routines and 3d relativistic trajectory calculation in 2d rectangular or axially symmetric electric and magnetic fields. It includes compiler tools, circuit synthesizing and hardware placement tools, translators, as well as resource estimators author. The following mebs software packages are available optics computes optical properties of electron and ion beam columns. The cpo softwares core function is the calculation of electrostaticmagnetic fields and the trajectories of charged particles through those fields, a bit like simion. This article is a reflective overview of the origins, history, and capabilities of the ion optics simulation program simion for the pc versions 2. The following mebs software packages are available. The code was originally developed for designing a slitbeam plasma extraction and nanosecond scale chopping for pulsed neutron generator, but has been developed further and has been used for many applications. Over many years, we have developed electron source simulation software that has been used widely in the electron optics community to aid the development of rotationally symmetric electron and ion guns. It is designed mainly for gamma detectors nai or hpge but can. A mirror whose shape is part of a circle, which is defined by three points. Some synchrotron radiation source and xray optics simulation. Rob veenhov from cern for the detailed simulation of the gaseous detectors.
Geometrical charged particle optics describes controlling of charged particle trajectories in electric magnetic fields in order to design some useful devices. Pc grate is a software for calculations of diffraction efficiency of different types of relief gratings on pcs. Our software is used worldwide by many electron microscope manufacturers and by manufacturers of charged particle optical equipment for the semiconductor industry. However, for design optimization of xray tubes accurate electron beam optics simulation is essential. Simulation software in optics and lasers simca, commodpro, spir, thermopt.
Products include microwave components, antennas,and plasmas to high speed digital system and accelerators. Jul 21, 2011 over many years, we have developed electron source simulation software that has been used widely in the electron optics community to aid the development of rotationally symmetric electron and ion guns. Focus pro software for axisymmetric and planar electron and ion optical systems simulation with almost any configuration of electrodes in an ac and dc field infeed mode by the imposition of an external constant magnetic field. Solution of electron optics problems with space charge in. The software is also used as a part of the multiphysics simulation framework sims2e for sourcetoexperiment simulations of a singleparticle imaging. Dynamic computes effects of dynamic correction elements in electron and ion beam columns. Two popular packages simion and garfield may perform the charged particle trajectory analysis in the magnetic fields, which are imported from quickfield. Goptical is free software and is part of the gnu project. Simulation software for designing electron and ion beam. The model provides a consistent simulation platform for optimization of electron beam optics in cnt xray source design. Refine optimizes interactively electron and ion beam columns. Simulation results based on this model agree well with experiments which include measurements of the transmission rate and focus spot size.
May, 2019 the saed3 software has been developed for interactive simulation and analysis of selectedarea and nanobeam electron diffraction patterns. Simion is a software package primarily used to calculate electric fields and the trajectories of. Munros electron beam software munros electron beam software. Egun electron optics simulations egun is a world famous simulation tool, developed by bill herrmannsfeldt at stanford linear accelerator center slac, for the numerical simulation of electron guns, including space charge, childlangmuir and fowlernordheim starting routines and 3d relativistic trajectory calculation in 2d rectangular or axially symmetric electric and magnetic fields. The software is able to calculate the propagation of. The programs were developed by profs frank read and nick bowring, in the group at manchester university which was the first to use the bem in electron optics and which produced the definitive book electrostatic lenses, by harting and read. Eod is program integrating software for particle optics computations spoc programs mld, eld, mmd, emd and trc. Simion is a software package by scientific instrument services inc. Aug 01, 2016 we have developed the wpg software package as a new framework for wave optics simulations and have used it successfully for xray fel optics beamline design and experimental data analysis. The saed3 software has been developed for interactive simulation and analysis of selectedarea and nanobeam electron diffraction patterns. Library for ion optics, plasma extraction and space charge dominated ion beam transport. The program is fully relativistic and includes a vast range of options and capabilities, such as automatic focusing, easytocalculate lens properties, secondary rays, timevarying voltages, pulsed beams, electrode shapes from a library or defined by users equations. Simulation of coulomb interaction effects in electron.
However, cpo differs fundamentally in its more powerful and accurate methods of calculation boundary element method, and it offers welltested spacecharge, cathode emission, dielectric, and other. The simulation results showed that least confusion disk of 6. Simulation of coulomb interaction effects in electron sources. Its services unit provides development and design, simulation,measurement and education. In this, simion provides extensive supporting functionality in geometry definition, user programming, data recording, and visualization. The origins of charged particle optics date back to the.
Main support webinars quickfield simulations for electronion optics. Simion software has a long history with an initial version developed in the late 70s by don mcgilvery at latrobe university, melbourne, australia, the first pc versions starting in the early 1980s and developed for the next two decades up to version 7 under david dahl at idaho national laboratory us department of energy, and version 8. To facilitate design of cnt xray sources a commercial 3d finite element software has been chosen for extensive simulation. The current activities mostly center around software for studying high frequency plasma phenomenon for which electron kinetics is important. During this webinar we will explain how to use quickfield for calculating the charged particle trajectories in electromagnetic fields. Guns and matching optics for twts, gyrotrons, accelerators, and many other applications have been successfully designed and optimized with it.
Abstract over many years, we have developed electron source simulation software that has been used widely in the electron optics community to aid the development of rotationally symmetric electron and ion guns. Focus pro soft the software for electron and ion optical. Simulation and design of charged particle optics systems. Simion is a software package primarily used to calculate electric fields and the trajectories of charged particles in those fields when given a configuration of electrodes with voltages and particle initial conditions, including optional rf quasistatic, magnetic field, and collisional effects. Eod is program integrating software for particle optics computations. Our model incorporates the precise and real design of each element constituting a tem, i. Next, the validation of this simulation against commercially available software will be discussed using an example lens as a. Munros electron beam software munros electron beam. Rays emerge from a single point, with number controlled by the ray density slider. This software uses geant4 simulation toolkit for computing detector efficiency in terms of peak efficiency and gross efficiency. Optics computes optical properties of electron and ion beam columns. For more advanced electron and ion optics analysis we recommend using thirdparty specialized software combined with quickfield.
Electron optics home of the charged particle optics software. This software package is for computing the optical properties of complete electron and ion beam columns, containing any combination of electrostatic and magnetic lenses and deflectors. Quickfield simulations for electronion optics quickfield. Has been described as the gold standard of electrostatic simulation programs. A parallel beam of rays emerges from a linesegment, with density controlled by the ray density slider. Simion version 8 is a software package primarily used to calculate electric fields and the trajectories of charged particles in those fields when given a configuration of electrodes with voltages and particle initial conditions, including optional rf quasistatic, magnetic field, and. Eod electron optical design software, downloads, demo. Egn2 is the most reliable and most established electron gun and trajectory optics program around the world. The cpo software s core function is the calculation of electrostaticmagnetic fields and the trajectories of charged particles through those fields, a bit like simion. We are a small, agile, efficiently run company, dedicated to supporting customers in hightechnology sectors, based. Jun 11, 2014 main support webinars quickfield simulations for electronion optics. Modeling a miniaturized scanning electron microscope. Simion is a software package primarily used to calculate electric fields and the trajectories of charged particles in those fields when given a. A threedimensional simulation software for charged.
Chubar collaboration meeting on simulation and modeling for sr sources and xray optics october 1 2, 2015, nslsii, bnl. The image family of software packages computes the combined effects of aberrations and discrete coulomb interactions in electron and ion beams by direct raytracing. Egun is a world famous simulation tool, developed by bill herrmannsfeldt at stanford linear accelerator center slac. Simion is a software package primarily used to calculate electric fields and the trajectories of charged particles in those fields when given a configuration of electrodes with voltages and particle initial conditions, including optional rf. It can be used as a teaching aid on electron microscopy courses and a practical tool for materials science research. Eod is based on potential computation with wellestablished first order finite element method, allowing to solve the 2d potential with high accuracy. Simion 8 the industry standard for electron and ionelectron optics simulation. The mebs software is likewise capable of calculating the properties of a wide range of electron optical devices, surveyed with numerous illustrations in liu et al. The reduction of the entire size of parallel beams in the designed electron optics was confirmed by simulation software. The simulation includes the modelling of cathode emission and the effects of volumetric space charge. Optimising electron microscopy experiment through electron. Detailed instruction for importing the magnetic field calculated by quickfield into simion is published at.
1313 132 702 540 1408 599 1391 26 714 1184 234 1466 950 980 70 1548 1572 115 819 1435 304 1477 1024 916 713 769 1354 536 515 1298 1202 1019 723 714 473