Preparation of CaSO4:Dy by precipitation method to gamma radiation dosimetry

T. Rivera; J. Roman; J. Azorín; R. Sosa; J. Guzmán; A. K. Serrano; M. García; G. Alarcón

doi:10.1016/j.apradiso.2009.09.033

Preparation of CaSO₄:Dy by precipitation method to gamma radiation dosimetry

T. Rivera, J. Roman, J. Azorín, R. Sosa, J. Guzmán, A. K. Serrano, M. García, G. Alarcón

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31 Citas (Scopus)

Resumen

This paper presents the results of the preparation and characterization of dysprosium-doped calcium sulfate (CaSO₄:Dy) phosphor, which was obtained by homogeneous precipitation from calcium acetate Ca(CH₃COO^-)₂. Structural and morphological characteristics were studied using a scanning electronic microscope (SEM). The structure of all compounds was determined by X-ray diffraction method too. Thermoluminescence (TL) emission properties of CaSO₄:Dy under gamma radiation effects were studied. This phosphor powder presented a TL glow curve with two peaks (Tmax) centered at around of 180 and 300 °C, respectively. The TL response of CaSO₄:Dy as a function of gamma absorbed dose was linear in a wide range. Both emission and excitation spectra were also obtained. Results showed that this new preparation method of CaSO₄:Dy TL phosphor is less expensive, cleaner and safer than the conventional preparation method.

Idioma original	Inglés
Páginas (desde-hasta)	623-625
Número de páginas	3
Publicación	Applied Radiation and Isotopes
Volumen	68
N.º	4-5
DOI	https://doi.org/10.1016/j.apradiso.2009.09.033
Estado	Publicada - abr. 2010
Publicado de forma externa	Sí

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@article{4c0102b7140d4d03a9d64399ab3cd138,

title = "Preparation of CaSO4:Dy by precipitation method to gamma radiation dosimetry",

abstract = "This paper presents the results of the preparation and characterization of dysprosium-doped calcium sulfate (CaSO4:Dy) phosphor, which was obtained by homogeneous precipitation from calcium acetate Ca(CH3COO-)2. Structural and morphological characteristics were studied using a scanning electronic microscope (SEM). The structure of all compounds was determined by X-ray diffraction method too. Thermoluminescence (TL) emission properties of CaSO4:Dy under gamma radiation effects were studied. This phosphor powder presented a TL glow curve with two peaks (Tmax) centered at around of 180 and 300 °C, respectively. The TL response of CaSO4:Dy as a function of gamma absorbed dose was linear in a wide range. Both emission and excitation spectra were also obtained. Results showed that this new preparation method of CaSO4:Dy TL phosphor is less expensive, cleaner and safer than the conventional preparation method.",

keywords = "CaSO, Chemical co-precipitation, Dosimetry, Dy, Gamma radiation, Thermoluminescence",

author = "T. Rivera and J. Roman and J. Azor{\'i}n and R. Sosa and J. Guzm{\'a}n and Serrano, {A. K.} and M. Garc{\'i}a and G. Alarc{\'o}n",

note = "Funding Information: This work is supported by CONACYT Grant no. 67733 and IPN Research Project 20080106.",

year = "2010",

month = apr,

doi = "10.1016/j.apradiso.2009.09.033",

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

volume = "68",

pages = "623--625",

journal = "Applied Radiation and Isotopes",

issn = "0969-8043",

number = "4-5",

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TY - JOUR

T1 - Preparation of CaSO4:Dy by precipitation method to gamma radiation dosimetry

AU - Rivera, T.

AU - Roman, J.

AU - Azorín, J.

AU - Sosa, R.

AU - Guzmán, J.

AU - Serrano, A. K.

AU - García, M.

AU - Alarcón, G.

N1 - Funding Information: This work is supported by CONACYT Grant no. 67733 and IPN Research Project 20080106.

PY - 2010/4

Y1 - 2010/4

N2 - This paper presents the results of the preparation and characterization of dysprosium-doped calcium sulfate (CaSO4:Dy) phosphor, which was obtained by homogeneous precipitation from calcium acetate Ca(CH3COO-)2. Structural and morphological characteristics were studied using a scanning electronic microscope (SEM). The structure of all compounds was determined by X-ray diffraction method too. Thermoluminescence (TL) emission properties of CaSO4:Dy under gamma radiation effects were studied. This phosphor powder presented a TL glow curve with two peaks (Tmax) centered at around of 180 and 300 °C, respectively. The TL response of CaSO4:Dy as a function of gamma absorbed dose was linear in a wide range. Both emission and excitation spectra were also obtained. Results showed that this new preparation method of CaSO4:Dy TL phosphor is less expensive, cleaner and safer than the conventional preparation method.

AB - This paper presents the results of the preparation and characterization of dysprosium-doped calcium sulfate (CaSO4:Dy) phosphor, which was obtained by homogeneous precipitation from calcium acetate Ca(CH3COO-)2. Structural and morphological characteristics were studied using a scanning electronic microscope (SEM). The structure of all compounds was determined by X-ray diffraction method too. Thermoluminescence (TL) emission properties of CaSO4:Dy under gamma radiation effects were studied. This phosphor powder presented a TL glow curve with two peaks (Tmax) centered at around of 180 and 300 °C, respectively. The TL response of CaSO4:Dy as a function of gamma absorbed dose was linear in a wide range. Both emission and excitation spectra were also obtained. Results showed that this new preparation method of CaSO4:Dy TL phosphor is less expensive, cleaner and safer than the conventional preparation method.

KW - CaSO

KW - Chemical co-precipitation

KW - Dosimetry

KW - Dy

KW - Gamma radiation

KW - Thermoluminescence

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U2 - 10.1016/j.apradiso.2009.09.033

DO - 10.1016/j.apradiso.2009.09.033

M3 - Artículo

C2 - 19819711

SN - 0969-8043

VL - 68

SP - 623

EP - 625

JO - Applied Radiation and Isotopes

JF - Applied Radiation and Isotopes

IS - 4-5

ER -