Diffractive triangulation of radiative point sources

S. Vespucci, G. Naresh-Kumar, C. Trager-Cowan, K. P. Mingard, D. Maneuski, V. O'Shea, A. Winkelmann

Research output: Contribution to journalArticle

Abstract

We describe a general method to determine the location of a point source of waves relative to a two-dimensional single-crystalline active pixel detector. Based on the inherent structural sensitivity of crystalline sensor materials, characteristic detector diffraction patterns can be used to triangulate the location of a wave emitter. The principle described here can be applied to various types of waves provided that the detector elements are suitably structured. As a prototypical practical application of the general detection principle, a digital hybrid pixel detector is used to localize a source of electrons for Kikuchi diffraction pattern measurements in the scanning electron microscope. This approach provides a promising alternative method to calibrate Kikuchi patterns for accurate measurements of microstructural crystal orientations, strains, and phase distributions.
LanguageEnglish
Article number124103
Number of pages5
JournalApplied Physics Letters
Volume110
Issue number12
Early online date24 Mar 2017
DOIs
Publication statusE-pub ahead of print - 24 Mar 2017

Fingerprint

triangulation
point sources
detectors
diffraction patterns
pixels
emitters
electron microscopes
scanning
sensitivity
sensors
crystals
electrons

Keywords

  • instrumentation
  • pixel detector
  • crystalline sensor materials

Cite this

Vespucci, S., Naresh-Kumar, G., Trager-Cowan, C., Mingard, K. P., Maneuski, D., O'Shea, V., & Winkelmann, A. (2017). Diffractive triangulation of radiative point sources. Applied Physics Letters, 110(12), [124103]. https://doi.org/10.1063/1.4978858
Vespucci, S. ; Naresh-Kumar, G. ; Trager-Cowan, C. ; Mingard, K. P. ; Maneuski, D. ; O'Shea, V. ; Winkelmann, A. / Diffractive triangulation of radiative point sources. In: Applied Physics Letters. 2017 ; Vol. 110, No. 12.
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Vespucci, S, Naresh-Kumar, G, Trager-Cowan, C, Mingard, KP, Maneuski, D, O'Shea, V & Winkelmann, A 2017, 'Diffractive triangulation of radiative point sources' Applied Physics Letters, vol. 110, no. 12, 124103. https://doi.org/10.1063/1.4978858

Diffractive triangulation of radiative point sources. / Vespucci, S.; Naresh-Kumar, G.; Trager-Cowan, C.; Mingard, K. P.; Maneuski, D.; O'Shea, V.; Winkelmann, A.

In: Applied Physics Letters, Vol. 110, No. 12, 124103, 24.03.2017.

Research output: Contribution to journalArticle

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T1 - Diffractive triangulation of radiative point sources

AU - Vespucci, S.

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