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Titolo:
Classification of counterfeit coins using multivariate analysis with X-raydiffraction and X-ray fluorescence methods
Autore:
Hida, M; Sato, H; Sugawara, H; Mitsui, T;
Indirizzi:
Criminal Invest Lab Aichi Pref Police HQ, Naka Ku, Nagoya, Aichi 4608502, Japan Criminal Invest Lab Aichi Pref Police HQ Nagoya Aichi Japan 4608502 Japan
Titolo Testata:
FORENSIC SCIENCE INTERNATIONAL
fascicolo: 1-2, volume: 115, anno: 2001,
pagine: 129 - 134
SICI:
0379-0738(20010101)115:1-2<129:COCCUM>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Keywords:
counterfeit coins; X-ray diffraction; X-ray fluorescence; cluster analysis; principal component analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
4
Recensione:
Indirizzi per estratti:
Indirizzo: Hida, M Criminal Invest Lab Aichi Pref Police HQ, Naka Ku, 2-1-1 Sannomaro, Nagoya, Aichi 4608502, Japan Criminal Invest Lab Aichi Pref Police HQ 2-1-1 Sannomaro Nagoya Aichi Japan 4608502
Citazione:
M. Hida et al., "Classification of counterfeit coins using multivariate analysis with X-raydiffraction and X-ray fluorescence methods", FOREN SCI I, 115(1-2), 2001, pp. 129-134

Abstract

Counterfeit coins (277 samples) were analyzed by both X-ray diffraction (XRD) and X-ray fluorescence (XRF) methods without any pretreatment. The counterfeit coins were clearly classified into two groups using cluster analysis (CA) and principal component analysis (PCA) for XRD peak patterns. One group (250 samples) was made by a pressed method and another one (27 samples)was made by a nickel-plated method. Using four elements (Cu, Ni, Fe and Zn) and obtaining XRF for 257 samples, they could be divided into four groupsby CA. On the other hand, they were classified into five groups using their diameter, thickness, weight, density, density/thickness and density/weight. The latter classification method would suggest something of a change in the process of the pressed method. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 08:06:54