TY - JOUR
T1 - IBA analysis of some precolumbian gilded-copper samples
AU - Andrade, E.
AU - Murillo, G.
AU - Policroniades, R.
AU - Acosta, L.
AU - Zavala, E. P.
AU - Rocha, M. F.
AU - Centeno, S. A.
PY - 2005/10
Y1 - 2005/10
N2 - The elemental composition and depth profiles obtained by IBA techniques on some gilded-copper fragments from the Moche site of Loma Negra, in the Piura Valley, on the Northern Coast of Perú are presented in this article. A previous radiocarbon dating of a wooden fragment indicated that Loma Negra was occupied around 295 AD. A PIXE analysis using a 2.6 MeV external proton beam, was used to obtain the concentration of trace elements in the samples. RBS analyses using 2.72 MeV 4He+ and 12.0 MeV 12C3+ were used to obtain the Au, Ag, Cu atomic profiles. NRA with a 1.02 MeV deuteron beam was used to measure the oxygen and carbon concentrations through the 16O(d,p) 17O, 16O(d,α) 14N and 12C(d,p0) 13C reactions.
AB - The elemental composition and depth profiles obtained by IBA techniques on some gilded-copper fragments from the Moche site of Loma Negra, in the Piura Valley, on the Northern Coast of Perú are presented in this article. A previous radiocarbon dating of a wooden fragment indicated that Loma Negra was occupied around 295 AD. A PIXE analysis using a 2.6 MeV external proton beam, was used to obtain the concentration of trace elements in the samples. RBS analyses using 2.72 MeV 4He+ and 12.0 MeV 12C3+ were used to obtain the Au, Ag, Cu atomic profiles. NRA with a 1.02 MeV deuteron beam was used to measure the oxygen and carbon concentrations through the 16O(d,p) 17O, 16O(d,α) 14N and 12C(d,p0) 13C reactions.
KW - Depth profiles
KW - IBA methods
KW - NRA
KW - PIXE
KW - RBS
UR - http://www.scopus.com/inward/record.url?scp=27344455861&partnerID=8YFLogxK
U2 - 10.1016/j.nimb.2005.06.226
DO - 10.1016/j.nimb.2005.06.226
M3 - Artículo
AN - SCOPUS:27344455861
SN - 0168-583X
VL - 240
SP - 570
EP - 575
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 1-2
ER -