Mechanism of thermoluminescence in magnesium oxide
Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of tra...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Sathyamoorthy, A. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1978 |
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| Schlagwörter: |
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| Anmerkung: |
© Chapman and Hall Ltd. 1978 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials science - Kluwer Academic Publishers, 1966, 13(1978), 12 vom: Dez., Seite 2637-2644 |
|---|---|
| Übergeordnetes Werk: |
volume:13 ; year:1978 ; number:12 ; month:12 ; pages:2637-2644 |
| Links: |
|---|
| DOI / URN: |
10.1007/BF00552693 |
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| Katalog-ID: |
OLC2046101553 |
|---|
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| 520 | |a Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of transition metal impurities on TL behaviour has been studied by the doping technique. It is observed that $ Cr^{3+} $, $ Mn^{2+} $ and $ Ni^{2+} $ act as emission centres while $ Fe^{3+} $, $ Co^{2+} $ and $ Cu^{2+} $ act as quenchers. For a particular sample all γ-induced glow peaks give a similar emission spectrum which is characteristic of the activators present. Optical bleaching, isothermal decay and ESR studies have been used to study the trapping centres. It is shown that the charge carriers involved are holes from V-type defects. The dominant 365 K peak has been assigned to $ V_{M} $ centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. | ||
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10.1007/BF00552693 doi (DE-627)OLC2046101553 (DE-He213)BF00552693-p DE-627 ger DE-627 rakwb eng 670 VZ Sathyamoorthy, A. verfasserin aut Mechanism of thermoluminescence in magnesium oxide 1978 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1978 Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of transition metal impurities on TL behaviour has been studied by the doping technique. It is observed that $ Cr^{3+} $, $ Mn^{2+} $ and $ Ni^{2+} $ act as emission centres while $ Fe^{3+} $, $ Co^{2+} $ and $ Cu^{2+} $ act as quenchers. For a particular sample all γ-induced glow peaks give a similar emission spectrum which is characteristic of the activators present. Optical bleaching, isothermal decay and ESR studies have been used to study the trapping centres. It is shown that the charge carriers involved are holes from V-type defects. The dominant 365 K peak has been assigned to $ V_{M} $ centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Metal Impurity Emission Centre High Temperature Peak Trapping Centre Glow Peak Luthra, J. M. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 13(1978), 12 vom: Dez., Seite 2637-2644 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:13 year:1978 number:12 month:12 pages:2637-2644 https://doi.org/10.1007/BF00552693 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4336 AR 13 1978 12 12 2637-2644 |
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10.1007/BF00552693 doi (DE-627)OLC2046101553 (DE-He213)BF00552693-p DE-627 ger DE-627 rakwb eng 670 VZ Sathyamoorthy, A. verfasserin aut Mechanism of thermoluminescence in magnesium oxide 1978 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1978 Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of transition metal impurities on TL behaviour has been studied by the doping technique. It is observed that $ Cr^{3+} $, $ Mn^{2+} $ and $ Ni^{2+} $ act as emission centres while $ Fe^{3+} $, $ Co^{2+} $ and $ Cu^{2+} $ act as quenchers. For a particular sample all γ-induced glow peaks give a similar emission spectrum which is characteristic of the activators present. Optical bleaching, isothermal decay and ESR studies have been used to study the trapping centres. It is shown that the charge carriers involved are holes from V-type defects. The dominant 365 K peak has been assigned to $ V_{M} $ centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Metal Impurity Emission Centre High Temperature Peak Trapping Centre Glow Peak Luthra, J. M. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 13(1978), 12 vom: Dez., Seite 2637-2644 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:13 year:1978 number:12 month:12 pages:2637-2644 https://doi.org/10.1007/BF00552693 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4336 AR 13 1978 12 12 2637-2644 |
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10.1007/BF00552693 doi (DE-627)OLC2046101553 (DE-He213)BF00552693-p DE-627 ger DE-627 rakwb eng 670 VZ Sathyamoorthy, A. verfasserin aut Mechanism of thermoluminescence in magnesium oxide 1978 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1978 Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of transition metal impurities on TL behaviour has been studied by the doping technique. It is observed that $ Cr^{3+} $, $ Mn^{2+} $ and $ Ni^{2+} $ act as emission centres while $ Fe^{3+} $, $ Co^{2+} $ and $ Cu^{2+} $ act as quenchers. For a particular sample all γ-induced glow peaks give a similar emission spectrum which is characteristic of the activators present. Optical bleaching, isothermal decay and ESR studies have been used to study the trapping centres. It is shown that the charge carriers involved are holes from V-type defects. The dominant 365 K peak has been assigned to $ V_{M} $ centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Metal Impurity Emission Centre High Temperature Peak Trapping Centre Glow Peak Luthra, J. M. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 13(1978), 12 vom: Dez., Seite 2637-2644 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:13 year:1978 number:12 month:12 pages:2637-2644 https://doi.org/10.1007/BF00552693 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4336 AR 13 1978 12 12 2637-2644 |
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10.1007/BF00552693 doi (DE-627)OLC2046101553 (DE-He213)BF00552693-p DE-627 ger DE-627 rakwb eng 670 VZ Sathyamoorthy, A. verfasserin aut Mechanism of thermoluminescence in magnesium oxide 1978 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1978 Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of transition metal impurities on TL behaviour has been studied by the doping technique. It is observed that $ Cr^{3+} $, $ Mn^{2+} $ and $ Ni^{2+} $ act as emission centres while $ Fe^{3+} $, $ Co^{2+} $ and $ Cu^{2+} $ act as quenchers. For a particular sample all γ-induced glow peaks give a similar emission spectrum which is characteristic of the activators present. Optical bleaching, isothermal decay and ESR studies have been used to study the trapping centres. It is shown that the charge carriers involved are holes from V-type defects. The dominant 365 K peak has been assigned to $ V_{M} $ centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Metal Impurity Emission Centre High Temperature Peak Trapping Centre Glow Peak Luthra, J. M. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 13(1978), 12 vom: Dez., Seite 2637-2644 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:13 year:1978 number:12 month:12 pages:2637-2644 https://doi.org/10.1007/BF00552693 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4336 AR 13 1978 12 12 2637-2644 |
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10.1007/BF00552693 doi (DE-627)OLC2046101553 (DE-He213)BF00552693-p DE-627 ger DE-627 rakwb eng 670 VZ Sathyamoorthy, A. verfasserin aut Mechanism of thermoluminescence in magnesium oxide 1978 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1978 Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of transition metal impurities on TL behaviour has been studied by the doping technique. It is observed that $ Cr^{3+} $, $ Mn^{2+} $ and $ Ni^{2+} $ act as emission centres while $ Fe^{3+} $, $ Co^{2+} $ and $ Cu^{2+} $ act as quenchers. For a particular sample all γ-induced glow peaks give a similar emission spectrum which is characteristic of the activators present. Optical bleaching, isothermal decay and ESR studies have been used to study the trapping centres. It is shown that the charge carriers involved are holes from V-type defects. The dominant 365 K peak has been assigned to $ V_{M} $ centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Metal Impurity Emission Centre High Temperature Peak Trapping Centre Glow Peak Luthra, J. M. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 13(1978), 12 vom: Dez., Seite 2637-2644 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:13 year:1978 number:12 month:12 pages:2637-2644 https://doi.org/10.1007/BF00552693 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4336 AR 13 1978 12 12 2637-2644 |
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Sathyamoorthy, A. |
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670 VZ Mechanism of thermoluminescence in magnesium oxide Metal Impurity Emission Centre High Temperature Peak Trapping Centre Glow Peak |
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Mechanism of thermoluminescence in magnesium oxide |
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Mechanism of thermoluminescence in magnesium oxide |
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Sathyamoorthy, A. |
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Journal of materials science |
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1978 |
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Sathyamoorthy, A. Luthra, J. M. |
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10.1007/BF00552693 |
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670 |
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mechanism of thermoluminescence in magnesium oxide |
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Mechanism of thermoluminescence in magnesium oxide |
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Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of transition metal impurities on TL behaviour has been studied by the doping technique. It is observed that $ Cr^{3+} $, $ Mn^{2+} $ and $ Ni^{2+} $ act as emission centres while $ Fe^{3+} $, $ Co^{2+} $ and $ Cu^{2+} $ act as quenchers. For a particular sample all γ-induced glow peaks give a similar emission spectrum which is characteristic of the activators present. Optical bleaching, isothermal decay and ESR studies have been used to study the trapping centres. It is shown that the charge carriers involved are holes from V-type defects. The dominant 365 K peak has been assigned to $ V_{M} $ centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. © Chapman and Hall Ltd. 1978 |
| abstractGer |
Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of transition metal impurities on TL behaviour has been studied by the doping technique. It is observed that $ Cr^{3+} $, $ Mn^{2+} $ and $ Ni^{2+} $ act as emission centres while $ Fe^{3+} $, $ Co^{2+} $ and $ Cu^{2+} $ act as quenchers. For a particular sample all γ-induced glow peaks give a similar emission spectrum which is characteristic of the activators present. Optical bleaching, isothermal decay and ESR studies have been used to study the trapping centres. It is shown that the charge carriers involved are holes from V-type defects. The dominant 365 K peak has been assigned to $ V_{M} $ centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. © Chapman and Hall Ltd. 1978 |
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Abstract Thermoluminescence (TL) induced by γ-rays in nominally pure polycrystalline MgO powders has been investigated. In addition to a high temperature peak around 650 K, which is also present in the unirradiated specimens, TL glow peaks are observed around 365, 435, 510 and 545 K. The role of transition metal impurities on TL behaviour has been studied by the doping technique. It is observed that $ Cr^{3+} $, $ Mn^{2+} $ and $ Ni^{2+} $ act as emission centres while $ Fe^{3+} $, $ Co^{2+} $ and $ Cu^{2+} $ act as quenchers. For a particular sample all γ-induced glow peaks give a similar emission spectrum which is characteristic of the activators present. Optical bleaching, isothermal decay and ESR studies have been used to study the trapping centres. It is shown that the charge carriers involved are holes from V-type defects. The dominant 365 K peak has been assigned to $ V_{M} $ centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. © Chapman and Hall Ltd. 1978 |
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