Analysis of pre-colonial pottery from Maranhão (Brazil) by XRF, PIXE, computed radiography and optical microscopy (2018)
- Authors:
- Autor USP: RIZZUTTO, MARCIA DE ALMEIDA - IF
- Unidade: IF
- Subjects: MICROSCOPIA; RADIOGRAFIA
- Language: Português
- Abstract: This work concerns the archaeometric analysis of ceramic fragments from archaeological excavations carried out in \Sambaqui do Bacanga", Sambaqui do Panaquatira" and \Rabo de Porco", located in the S~ao Luiz city area, at Brazilian northeast. Ancient civilizations that inhabited that territory were characterized as ¯shing, catchers, hunters and ceramist populations. Dates obtained by thermoluminescence ranged from 6600 to 127 BP. The studied samples were sixty three representative pottery fragments selected of stratigraphic levels from the surface to 170 cm deep for all sites. The analytical methods employed were XRF, PIXE, Computed Radiography and Optical Microscopy. XRF measurements were performed with a Shimadzu Energy Dispersive X-Ray Fluorescence Spectrometer (EDX - 720), which consists of an X-ray tube (Rh target) to excite the samples, a Si(Li) detector and 3mm collimator. PIXE measurements were performed with an external beam setup with 2.4MeV proton beam in the LAMFI laboratory using three X-ray detectors, two Si-PIN detectors and one HPGe with standard spectrometry electronics; each spectrum was taken for 600s. To perform normalization between the measurements a gamma-ray scintillation detector (NaI(Tl)) was used to determine the ion beam charge. Computed Radiography employed an X-ray tube Philips MG 450 and a CR30-X AGFA scanner.
- Imprenta:
- Source:
- Título do periódico: Resumos
- Conference titles: Brazilian Meeting on Nuclear Physics
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ABNT
IKEOKA, R. A. e RIZZUTTO, Marcia de Almeida e BANDEIRA, A. M. Analysis of pre-colonial pottery from Maranhão (Brazil) by XRF, PIXE, computed radiography and optical microscopy. 2018, Anais.. São Paulo: Instituto de Física, Universidade de São Paulo, 2018. Disponível em: https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=17. Acesso em: 19 abr. 2024. -
APA
Ikeoka, R. A., Rizzutto, M. de A., & Bandeira, A. M. (2018). Analysis of pre-colonial pottery from Maranhão (Brazil) by XRF, PIXE, computed radiography and optical microscopy. In Resumos. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=17 -
NLM
Ikeoka RA, Rizzutto M de A, Bandeira AM. Analysis of pre-colonial pottery from Maranhão (Brazil) by XRF, PIXE, computed radiography and optical microscopy [Internet]. Resumos. 2018 ;[citado 2024 abr. 19 ] Available from: https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=17 -
Vancouver
Ikeoka RA, Rizzutto M de A, Bandeira AM. Analysis of pre-colonial pottery from Maranhão (Brazil) by XRF, PIXE, computed radiography and optical microscopy [Internet]. Resumos. 2018 ;[citado 2024 abr. 19 ] Available from: https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=17 - Non-destructive analysis in art and arqueology
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