Double-beam x-ray radiography system for three-dimensional flow visualization of molten silicon convection

Masahito Watanabe, Minoru Eguchi, Koichi Kakimoto, Taketoshi Hibiya

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A "double-beam X-ray radiography system" is developed for three-dimensional visualization of the flow of molten silicon convection during Czochralski crystal growth. The system contains two sets of X-ray sources and X-ray cameras set at right angles to each other. Tracers are tracked in three dimensions by stereoscopic photograph theory. The new system is described in detail and three-dimensionally visualized particle paths of molten silicon convection are presented. This visualization technique shows that the azimuthal flow direction of molten silicon strongly depends on the crucible and crystal rotations rates, and they can be categorized using the relationship between the crystal and crucible Reynolds numbers.

Original languageEnglish
Pages (from-to)23-28
Number of pages6
JournalJournal of Crystal Growth
Volume133
Issue number1-2
DOIs
Publication statusPublished - Oct 1 1993

Fingerprint

three dimensional flow
Radiography
flow visualization
Silicon
radiography
Flow visualization
Molten materials
convection
Crucibles
crucibles
X rays
silicon
Visualization
X ray cameras
X ray radiography
Crystals
Crystal growth from melt
x rays
photographs
crystals

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Double-beam x-ray radiography system for three-dimensional flow visualization of molten silicon convection. / Watanabe, Masahito; Eguchi, Minoru; Kakimoto, Koichi; Hibiya, Taketoshi.

In: Journal of Crystal Growth, Vol. 133, No. 1-2, 01.10.1993, p. 23-28.

Research output: Contribution to journalArticle

Watanabe, Masahito ; Eguchi, Minoru ; Kakimoto, Koichi ; Hibiya, Taketoshi. / Double-beam x-ray radiography system for three-dimensional flow visualization of molten silicon convection. In: Journal of Crystal Growth. 1993 ; Vol. 133, No. 1-2. pp. 23-28.
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