Use this URL to cite or link to this record in EThOS:
Title: Geometric aberrations in cylindrically symmetric electrostatic lenses
Author: Renau, Anthony
Awarding Body: University of London
Current Institution: Royal Holloway, University of London
Date of Award: 1984
Availability of Full Text:
Access from EThOS:
Access from Institution:
Using a computer model of a two cylinder electrostatic lens, some novel relationships have been found to exist between the input and output parameters of meridional rays. These relationships have been developed and used to show that, for a wide range of practical lens geometries, it is possible to represent all the third and fifth order aberrations in terms of just two of the normal parameters. Formulae have been derived to describe some of the quantities associated with this type of lens defect and the problems of minimising the aberrations are discussed.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Optics