Affordable Access

Publisher Website

Small gap width measurement with a finite X-ray source

Authors
Publisher
Elsevier Ltd
Publication Date
Volume
27
Issue
1
Identifiers
DOI: 10.1016/0963-8695(94)90006-x
Keywords
  • Dimensional Measurement
  • X-Rays
  • Gap Width
Disciplines
  • Mathematics

Abstract

Abstract Theoretical work was carried out in order to assess the feasibility of measuring small gap widths by using X-rays. The work was done using optical geometry, and the effect of the various geometrical parameters (source dimension, geometrical enlargement, gap width, and film position relative to the no-umbra point) on the apparent gap size was investigated. The influence of some other parameters ( eg full reflectance of the beam from the gap edges or misalignment of the source and the gap axis) is also discussed. The results, which are presented graphically and analytically, enable the user to plan a measurement in an optimal way and help in analysing the results correctly.

There are no comments yet on this publication. Be the first to share your thoughts.