---
res:
  bibo_abstract:
  - Industrial X-ray computed tomography (XCT) is a tool for non-destructive testing
    and a volumetric analysis method with the ability to measure dimensions and geometry
    inside a component without destroying it. However, XCT is a relatively young technology
    in the field of dimensional metrology and thus faces several challenges. The achievement
    of a high measurement resolution, which is re-quired to detect small geometrical
    features, depends on a variety of influencing factors. In this arti-cle, the interface
    structural resolution (ISR) as one of the key challenges will be investigated.
    The two-sphere standard called the hourglass standard allows the determination
    of the structural resolu-tion by evaluation of the surrounding area of an ideal
    point contact of two spheres after the CT re-construction in form of a neck-shaped
    transition. Close to the contact point of the two spheres two opposing surfaces
    exist. Their distances from each other increase as the distance from the contact
    point of the two spheres increase. The determination of the distances between
    the spheres’ surface allows a statement about the ISR. A new developed specimen
    or standard with a variable gap size consisting of calibrated parallel gauge blocks
    allows statements about the ISR, too. Because of the higher number of probing
    points of the gauge block standard the results of the determined ISR are more
    stable compared to the hourglass standard. This paper compares the results of
    the computed tomography measurements for the designed interface structural resolution
    standard with those of the hourglass standard. @eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: M.
      foaf_name: Busch, M.
      foaf_surname: Busch
  - foaf_Person:
      foaf_givenName: T.
      foaf_name: Hausotte, T.
      foaf_surname: Hausotte
  bibo_doi: 10.4028/www.scientific.net/kem.883.41
  bibo_volume: 883
  dct_date: 2021^xs_gYear
  dct_language: eng
  dct_title: Determination of the Interface Structural Resolution of an Industrial
    X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting
    of Gauge Blocks@
...