Advances in the synthesis of new Europium doped CaSO4 phosphors and their thermoluminescence characterization

R. Bernal; A. R. García-Haro; L. Machi; F. Brown; R. Pérez-Salas; V. M. Castaño; C. Cruz-Vázquez

doi:10.1016/j.radmeas.2007.11.027

Advances in the synthesis of new Europium doped CaSO₄ phosphors and their thermoluminescence characterization

R. Bernal^*, A. R. García-Haro, L. Machi, F. Brown, R. Pérez-Salas, V. M. Castaño, C. Cruz-Vázquez

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Novel self-agglomerating Eu doped CaSO₄ phosphors were synthesized by a cheap, easy, and environmental friendly chemical route. Pellet-shaped sintered samples were obtained without any binding material, and exposed to beta particle irradiation. The thermoluminescence (TL) response in the 0.08-2.6 Gy dose range increased linearly as the radiation dose increased. Glow curves exhibit the most intense maximum close to 200 ^{{ring operator}} C, and two much less intense maxima at 250 and 330 ^{{ring operator}} C when a 5 ^{{ring operator}} C / s heating rate is used. No TL peaks shift is observed when dose changes, which is characteristic of first order kinetics TL processes. The whole glow curve displays a remarkable stability under storage at room temperature. The main peak intensity is 2.5 times greater than that of the TLD-100. The method here reported can be used to synthesize CaSO₄ with other dopants.

Original language	English
Pages (from-to)	371-374
Number of pages	4
Journal	Radiation Measurements
Volume	43
Issue number	2-6
DOIs	https://doi.org/10.1016/j.radmeas.2007.11.027
State	Published - Feb 2008

Keywords

Beta radiation
CaSO
Thermoluminescence

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10.1016/j.radmeas.2007.11.027

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title = "Advances in the synthesis of new Europium doped CaSO4 phosphors and their thermoluminescence characterization",

abstract = "Novel self-agglomerating Eu doped CaSO4 phosphors were synthesized by a cheap, easy, and environmental friendly chemical route. Pellet-shaped sintered samples were obtained without any binding material, and exposed to beta particle irradiation. The thermoluminescence (TL) response in the 0.08-2.6 Gy dose range increased linearly as the radiation dose increased. Glow curves exhibit the most intense maximum close to 200 {ring operator} C, and two much less intense maxima at 250 and 330 {ring operator} C when a 5 {ring operator} C / s heating rate is used. No TL peaks shift is observed when dose changes, which is characteristic of first order kinetics TL processes. The whole glow curve displays a remarkable stability under storage at room temperature. The main peak intensity is 2.5 times greater than that of the TLD-100. The method here reported can be used to synthesize CaSO4 with other dopants.",

keywords = "Beta radiation, CaSO, Thermoluminescence",

author = "R. Bernal and Garc{\'i}a-Haro, {A. R.} and L. Machi and F. Brown and R. P{\'e}rez-Salas and Casta{\~n}o, {V. M.} and C. Cruz-V{\'a}zquez",

year = "2008",

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doi = "10.1016/j.radmeas.2007.11.027",

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volume = "43",

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journal = "Radiation Measurements",

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T1 - Advances in the synthesis of new Europium doped CaSO4 phosphors and their thermoluminescence characterization

AU - Bernal, R.

AU - García-Haro, A. R.

AU - Machi, L.

AU - Brown, F.

AU - Pérez-Salas, R.

AU - Castaño, V. M.

AU - Cruz-Vázquez, C.

PY - 2008/2

Y1 - 2008/2

N2 - Novel self-agglomerating Eu doped CaSO4 phosphors were synthesized by a cheap, easy, and environmental friendly chemical route. Pellet-shaped sintered samples were obtained without any binding material, and exposed to beta particle irradiation. The thermoluminescence (TL) response in the 0.08-2.6 Gy dose range increased linearly as the radiation dose increased. Glow curves exhibit the most intense maximum close to 200 {ring operator} C, and two much less intense maxima at 250 and 330 {ring operator} C when a 5 {ring operator} C / s heating rate is used. No TL peaks shift is observed when dose changes, which is characteristic of first order kinetics TL processes. The whole glow curve displays a remarkable stability under storage at room temperature. The main peak intensity is 2.5 times greater than that of the TLD-100. The method here reported can be used to synthesize CaSO4 with other dopants.

AB - Novel self-agglomerating Eu doped CaSO4 phosphors were synthesized by a cheap, easy, and environmental friendly chemical route. Pellet-shaped sintered samples were obtained without any binding material, and exposed to beta particle irradiation. The thermoluminescence (TL) response in the 0.08-2.6 Gy dose range increased linearly as the radiation dose increased. Glow curves exhibit the most intense maximum close to 200 {ring operator} C, and two much less intense maxima at 250 and 330 {ring operator} C when a 5 {ring operator} C / s heating rate is used. No TL peaks shift is observed when dose changes, which is characteristic of first order kinetics TL processes. The whole glow curve displays a remarkable stability under storage at room temperature. The main peak intensity is 2.5 times greater than that of the TLD-100. The method here reported can be used to synthesize CaSO4 with other dopants.

KW - Beta radiation

KW - CaSO

KW - Thermoluminescence

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U2 - 10.1016/j.radmeas.2007.11.027

DO - 10.1016/j.radmeas.2007.11.027

M3 - Artículo

SN - 1350-4487

VL - 43

SP - 371

EP - 374

JO - Radiation Measurements

JF - Radiation Measurements

IS - 2-6

ER -

Advances in the synthesis of new Europium doped CaSO₄ phosphors and their thermoluminescence characterization

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Keywords

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