DEVELOPMENT OF AN ELECTRON OPTICS SIMULATOR TO CONSIDER THE 3-D MAGNETIC DEFLECTION FIELD IN CRTS

Authors
MIYAZAWA H KOIZUMI M MIZUTA T OKU K SHIRAI S YOSHIMI I
Citation
H. Miyazawa et al., DEVELOPMENT OF AN ELECTRON OPTICS SIMULATOR TO CONSIDER THE 3-D MAGNETIC DEFLECTION FIELD IN CRTS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 363(1-2), 1995, pp. 341-346
Citations number
5
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
363
Issue
1-2
Year of publication
1995
Pages
341 - 346
Database
ISI
SICI code
0168-9002(1995)363:1-2<341:DOAEOS>2.0.ZU;2-T
Abstract
We have developed an electron optics simulator which can take the thre e-dimensional magnetic deflection field in CRTs into account. The magn etic field is calculated by the combination of an integral equation me thod (IEM) and a multipole field expansion method considering the exac t shape and winding pattern of saddle-saddle coils of a deflection yok e (DY) for the CRTs. The simulator analyzes misconvergence by followin g an electron trajectory in the magnetic field by using the Runge-Kutt a-Gill method. The combined method reduced the CPU time to 1/45 compar ed with the method which uses only the IBM. The relations between the misconvergence and the tilt angle of the DY away from the CRT axis are calculated and they agree well within the measurement error.