Thermoluminescence and electron paramagnetic resonance (EPR) studies of mineral chrysocolla (dioptase)

P. Selvin; S. Watanabe; Jorge Sabino Ayala Arenas

doi:10.1016/S0969-806X(01)00323-1

Thermoluminescence and electron paramagnetic resonance (EPR) studies of mineral chrysocolla (dioptase)

P. Selvin, S. Watanabe, Jorge Sabino Ayala Arenas

Resultado de la investigación: Contribución a una revista › Artículo › revisión exhaustiva

Resumen

The natural mineral chrysocolla (CuSiO₃·2H₂O) has been investigated in terms of thermally stimulated luminescence and EPR measurements. The glow curves for natural samples present three glow peaks at 190, 357 and 450°C. Pre annealed and subsequently irradiated samples give rise to four glow peaks at 140°C, 193°C, 305°C and 450°C. The formation of H^o centers at the expense of water molecules present in the channels has been identified by EPR measurements.

Idioma original	Inglés
Páginas (desde-hasta)	531-533
Número de páginas	3
Publicación	Radiation Physics and Chemistry
Volumen	61
N.º	3-6
DOI	https://doi.org/10.1016/S0969-806X(01)00323-1
Estado	Publicada - 2001
Publicado de forma externa	Sí

Nota bibliográfica

Funding Information:
This work was supported by FAPESP and CNPq. One of us, P.C. Selvin gratefully acknowledges FAPESP for a fellowship. The help rendered by Mr. W.E.F. Ayta throughout the course of this study is gratefully acknowledged.

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10.1016/S0969-806X(01)00323-1

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title = "Thermoluminescence and electron paramagnetic resonance (EPR) studies of mineral chrysocolla (dioptase)",

abstract = "The natural mineral chrysocolla (CuSiO3·2H2O) has been investigated in terms of thermally stimulated luminescence and EPR measurements. The glow curves for natural samples present three glow peaks at 190, 357 and 450°C. Pre annealed and subsequently irradiated samples give rise to four glow peaks at 140°C, 193°C, 305°C and 450°C. The formation of Ho centers at the expense of water molecules present in the channels has been identified by EPR measurements.",

keywords = "Chrysocolla, EPR, SiO hole centers, Thermoluminescence",

author = "P. Selvin and S. Watanabe and {Ayala Arenas}, {Jorge Sabino}",

note = "Funding Information: This work was supported by FAPESP and CNPq. One of us, P.C. Selvin gratefully acknowledges FAPESP for a fellowship. The help rendered by Mr. W.E.F. Ayta throughout the course of this study is gratefully acknowledged.",

year = "2001",

doi = "10.1016/S0969-806X(01)00323-1",

language = "Ingl{\'e}s",

volume = "61",

pages = "531--533",

journal = "Radiation Physics and Chemistry",

issn = "0969-806X",

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T1 - Thermoluminescence and electron paramagnetic resonance (EPR) studies of mineral chrysocolla (dioptase)

AU - Selvin, P.

AU - Watanabe, S.

AU - Ayala Arenas, Jorge Sabino

N1 - Funding Information: This work was supported by FAPESP and CNPq. One of us, P.C. Selvin gratefully acknowledges FAPESP for a fellowship. The help rendered by Mr. W.E.F. Ayta throughout the course of this study is gratefully acknowledged.

PY - 2001

Y1 - 2001

N2 - The natural mineral chrysocolla (CuSiO3·2H2O) has been investigated in terms of thermally stimulated luminescence and EPR measurements. The glow curves for natural samples present three glow peaks at 190, 357 and 450°C. Pre annealed and subsequently irradiated samples give rise to four glow peaks at 140°C, 193°C, 305°C and 450°C. The formation of Ho centers at the expense of water molecules present in the channels has been identified by EPR measurements.

AB - The natural mineral chrysocolla (CuSiO3·2H2O) has been investigated in terms of thermally stimulated luminescence and EPR measurements. The glow curves for natural samples present three glow peaks at 190, 357 and 450°C. Pre annealed and subsequently irradiated samples give rise to four glow peaks at 140°C, 193°C, 305°C and 450°C. The formation of Ho centers at the expense of water molecules present in the channels has been identified by EPR measurements.

KW - Chrysocolla

KW - EPR

KW - SiO hole centers

KW - Thermoluminescence

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U2 - 10.1016/S0969-806X(01)00323-1

DO - 10.1016/S0969-806X(01)00323-1

M3 - Artículo

AN - SCOPUS:0034897032

VL - 61

SP - 531

EP - 533

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

SN - 0969-806X

IS - 3-6

ER -

Thermoluminescence and electron paramagnetic resonance (EPR) studies of mineral chrysocolla (dioptase)

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