Use of Scanning Electron Microscopy for three dimensional stereo analysis of impact craters and modelling with Zernike polynomials

Wallis, D., Solomon, Christopher J., Kay, L. (2000) Use of Scanning Electron Microscopy for three dimensional stereo analysis of impact craters and modelling with Zernike polynomials. Advances in Space Research, 25 (2). pp. 339-344. ISSN 0273-1177. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://www.scopus.com/inward/record.url?eid=2-s2.0...

Abstract

Examples will be presented to demonstrate the use of a Scanning Electron Microscope to obtain detailed measurements of hypervelocity impact craters and to obtain the shapes of craters in three dimensions by comparing stereo pairs. The depth of each crater is sampled at approximately 5000 points and the data is fitted using a set of polynomials orthogonal over a unit disc ( the Zernike polynomials). The specific application to be presented is the study of groups of craters produced under identical impact conditions by firing a quantity of projectiles as buckshot from a light gas gun. Analysis of the Zernike polynomial spectrum of the crater shapes will show quantitatively the variations in crater shapes, both within groups of identical craters and between groups corresponding to different impact conditions. In this way the potential of the method for inferring properties of impactors will be assessed, with the aim of applying the method to obtain velocity and density information from craters in retrieved space-exposed surfaces. ©1999 COSPAR. Published by Elsevier Science Ltd.

Item Type: Article
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Adv. Space Res. [Field not mapped to EPrints] AD - U. for Space Sci. and Astrophysics, University of Kent at Canterbury, Canterbury, Kent CT27NR, United Kingdom [Field not mapped to EPrints] AD - Applied Optics Group, University of Kent at Canterbury, Canterbury, Kent CT27NR, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Subjects: Q Science
Divisions: Faculties > Sciences > School of Physical Sciences > Forensic Imaging Group
Depositing User: Giles Tarver
Date Deposited: 21 May 2015 10:18 UTC
Last Modified: 29 May 2019 14:34 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/48550 (The current URI for this page, for reference purposes)
  • Depositors only (login required):