Novel simulation method of space charge effects in electron optical systems including emission of electrons
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F18%3A00489598" target="_blank" >RIV/68081731:_____/18:00489598 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.ultramic.2017.10.010" target="_blank" >http://dx.doi.org/10.1016/j.ultramic.2017.10.010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ultramic.2017.10.010" target="_blank" >10.1016/j.ultramic.2017.10.010</a>
Alternative languages
Result language
angličtina
Original language name
Novel simulation method of space charge effects in electron optical systems including emission of electrons
Original language description
We present a comprehensive numerical method for iterative computation of electron optical systems influenced by space charge which can accurately describe all effects in an optical system, including areas near a cathode tip and all crossovers. We use two different algorithms of evaluating the space charge distribution in different parts of the system. The Monte-Carlo based particle-in-cell method is used in the vicinity of the cathode. The algorithm based on the calculation of the current density distribution from an aberration polynomial is used for the rest of the system. We introduce a re-meshing algorithm which adapts the finite element mesh used for the field calculation in each iteration to the actual space charge distribution to keep it sufficiently fine in all areas with non-zero space charge. The algorithm is finally tested on a design of an experimental electron-welding machine developed at the ISI of the CAS.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ultramicroscopy
ISSN
0304-3991
e-ISSN
—
Volume of the periodical
184
Issue of the periodical within the volume
JAN
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
66-76
UT code for WoS article
000417779800009
EID of the result in the Scopus database
2-s2.0-85032508057