Non-destructive compositional analysis of historic organ reed pipes

A. Manescu, F. Fiori, A. Giuliani, N. Kardjilov, Z. Kasztovszky, F. Rustichelli, B. Straumal

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In order to be able to reproduce historic organ reed pipes, a bulk non-destructive chemical composition analysis was performed on the tongues and shallots, focusing mainly on the ratio between copper and zinc and on the presence of lead. Prompt gamma activation analysis results allowed us to observe for the first time that the ratio between the two main components of the brass alloy changed from Cu:Zn = 3:1 for the old tongues and shallots to Cu:Zn = 2:1 around the middle of the 18th century, which is typical also for the modern alloys offered to the organ builders nowadays. We also discovered that the Pb content in the old historic brass alloy diminished until the middle of 18th century when the brass alloy became mainly Pb free. The non-uniform lead distribution inside one of the shallots obtained from a prompt gamma activation analysis (PGAA) experiment was studied by neutron tomography. It gave us a three-dimensonal (3D) distribution of the lead inclusions inside the shallots. The lead particles are concentrated towards the base of the shallot.

Original languageEnglish
Article number104250
JournalJournal of Physics Condensed Matter
Volume20
Issue number10
DOIs
Publication statusPublished - Mar 12 2008

Fingerprint

organs
brasses
Brass
Pipe
activation analysis
Activation analysis
tongue
Lead
Tomography
Zinc
Copper
Neutrons
chemical composition
tomography
zinc
inclusions
neutrons
copper
Chemical analysis
brass

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Manescu, A., Fiori, F., Giuliani, A., Kardjilov, N., Kasztovszky, Z., Rustichelli, F., & Straumal, B. (2008). Non-destructive compositional analysis of historic organ reed pipes. Journal of Physics Condensed Matter, 20(10), [104250]. https://doi.org/10.1088/0953-8984/20/10/104250

Non-destructive compositional analysis of historic organ reed pipes. / Manescu, A.; Fiori, F.; Giuliani, A.; Kardjilov, N.; Kasztovszky, Z.; Rustichelli, F.; Straumal, B.

In: Journal of Physics Condensed Matter, Vol. 20, No. 10, 104250, 12.03.2008.

Research output: Contribution to journalArticle

Manescu, A, Fiori, F, Giuliani, A, Kardjilov, N, Kasztovszky, Z, Rustichelli, F & Straumal, B 2008, 'Non-destructive compositional analysis of historic organ reed pipes', Journal of Physics Condensed Matter, vol. 20, no. 10, 104250. https://doi.org/10.1088/0953-8984/20/10/104250
Manescu, A. ; Fiori, F. ; Giuliani, A. ; Kardjilov, N. ; Kasztovszky, Z. ; Rustichelli, F. ; Straumal, B. / Non-destructive compositional analysis of historic organ reed pipes. In: Journal of Physics Condensed Matter. 2008 ; Vol. 20, No. 10.
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