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: |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
1978 |
|---|
| Umfang: |
8 |
|---|
| Reproduktion: |
Springer Online Journal Archives 1860-2002 |
|---|---|
| Übergeordnetes Werk: |
in: Journal of materials science - 1966, 13(1978) vom: Dez., Seite 2637-2644 |
| Übergeordnetes Werk: |
volume:13 ; year:1978 ; month:12 ; pages:2637-2644 ; extent:8 |
| Links: |
|---|
| Katalog-ID: |
NLEJ19454334X |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLEJ19454334X | ||
| 003 | DE-627 | ||
| 005 | 20210707232240.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 070526s1978 xx |||||o 00| ||eng c | ||
| 035 | |a (DE-627)NLEJ19454334X | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 245 | 1 | 0 | |a Mechanism of thermoluminescence in magnesium oxide |
| 264 | 1 | |c 1978 | |
| 300 | |a 8 | ||
| 336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
| 337 | |a nicht spezifiziert |b z |2 rdamedia | ||
| 338 | |a nicht spezifiziert |b zu |2 rdacarrier | ||
| 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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. | ||
| 533 | |f Springer Online Journal Archives 1860-2002 | ||
| 700 | 1 | |a Sathyamoorthy, A. |4 oth | |
| 700 | 1 | |a Luthra, J. M. |4 oth | |
| 773 | 0 | 8 | |i in |t Journal of materials science |d 1966 |g 13(1978) vom: Dez., Seite 2637-2644 |w (DE-627)NLEJ188987134 |w (DE-600)2015305-3 |x 1573-4803 |7 nnns |
| 773 | 1 | 8 | |g volume:13 |g year:1978 |g month:12 |g pages:2637-2644 |g extent:8 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1007/BF02402750 |
| 912 | |a GBV_USEFLAG_U | ||
| 912 | |a ZDB-1-SOJ | ||
| 912 | |a GBV_NL_ARTICLE | ||
| 951 | |a AR | ||
| 952 | |d 13 |j 1978 |c 12 |h 2637-2644 |g 8 | ||
| matchkey_str |
article:15734803:1978----::ehnsotemlmnsecim |
|---|---|
| hierarchy_sort_str |
1978 |
| publishDate |
1978 |
| allfields |
(DE-627)NLEJ19454334X DE-627 ger DE-627 rakwb eng Mechanism of thermoluminescence in magnesium oxide 1978 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Springer Online Journal Archives 1860-2002 Sathyamoorthy, A. oth Luthra, J. M. oth in Journal of materials science 1966 13(1978) vom: Dez., Seite 2637-2644 (DE-627)NLEJ188987134 (DE-600)2015305-3 1573-4803 nnns volume:13 year:1978 month:12 pages:2637-2644 extent:8 http://dx.doi.org/10.1007/BF02402750 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1978 12 2637-2644 8 |
| spelling |
(DE-627)NLEJ19454334X DE-627 ger DE-627 rakwb eng Mechanism of thermoluminescence in magnesium oxide 1978 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Springer Online Journal Archives 1860-2002 Sathyamoorthy, A. oth Luthra, J. M. oth in Journal of materials science 1966 13(1978) vom: Dez., Seite 2637-2644 (DE-627)NLEJ188987134 (DE-600)2015305-3 1573-4803 nnns volume:13 year:1978 month:12 pages:2637-2644 extent:8 http://dx.doi.org/10.1007/BF02402750 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1978 12 2637-2644 8 |
| allfields_unstemmed |
(DE-627)NLEJ19454334X DE-627 ger DE-627 rakwb eng Mechanism of thermoluminescence in magnesium oxide 1978 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Springer Online Journal Archives 1860-2002 Sathyamoorthy, A. oth Luthra, J. M. oth in Journal of materials science 1966 13(1978) vom: Dez., Seite 2637-2644 (DE-627)NLEJ188987134 (DE-600)2015305-3 1573-4803 nnns volume:13 year:1978 month:12 pages:2637-2644 extent:8 http://dx.doi.org/10.1007/BF02402750 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1978 12 2637-2644 8 |
| allfieldsGer |
(DE-627)NLEJ19454334X DE-627 ger DE-627 rakwb eng Mechanism of thermoluminescence in magnesium oxide 1978 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Springer Online Journal Archives 1860-2002 Sathyamoorthy, A. oth Luthra, J. M. oth in Journal of materials science 1966 13(1978) vom: Dez., Seite 2637-2644 (DE-627)NLEJ188987134 (DE-600)2015305-3 1573-4803 nnns volume:13 year:1978 month:12 pages:2637-2644 extent:8 http://dx.doi.org/10.1007/BF02402750 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1978 12 2637-2644 8 |
| allfieldsSound |
(DE-627)NLEJ19454334X DE-627 ger DE-627 rakwb eng Mechanism of thermoluminescence in magnesium oxide 1978 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. Springer Online Journal Archives 1860-2002 Sathyamoorthy, A. oth Luthra, J. M. oth in Journal of materials science 1966 13(1978) vom: Dez., Seite 2637-2644 (DE-627)NLEJ188987134 (DE-600)2015305-3 1573-4803 nnns volume:13 year:1978 month:12 pages:2637-2644 extent:8 http://dx.doi.org/10.1007/BF02402750 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 13 1978 12 2637-2644 8 |
| language |
English |
| source |
in Journal of materials science 13(1978) vom: Dez., Seite 2637-2644 volume:13 year:1978 month:12 pages:2637-2644 extent:8 |
| sourceStr |
in Journal of materials science 13(1978) vom: Dez., Seite 2637-2644 volume:13 year:1978 month:12 pages:2637-2644 extent:8 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| isfreeaccess_bool |
false |
| container_title |
Journal of materials science |
| authorswithroles_txt_mv |
Sathyamoorthy, A. @@oth@@ Luthra, J. M. @@oth@@ |
| publishDateDaySort_date |
1978-12-01T00:00:00Z |
| hierarchy_top_id |
NLEJ188987134 |
| id |
NLEJ19454334X |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ19454334X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210707232240.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070526s1978 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ19454334X</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Mechanism of thermoluminescence in magnesium oxide</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1978</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">8</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Springer Online Journal Archives 1860-2002</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Sathyamoorthy, A.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Luthra, J. M.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Journal of materials science</subfield><subfield code="d">1966</subfield><subfield code="g">13(1978) vom: Dez., Seite 2637-2644</subfield><subfield code="w">(DE-627)NLEJ188987134</subfield><subfield code="w">(DE-600)2015305-3</subfield><subfield code="x">1573-4803</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:13</subfield><subfield code="g">year:1978</subfield><subfield code="g">month:12</subfield><subfield code="g">pages:2637-2644</subfield><subfield code="g">extent:8</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1007/BF02402750</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-SOJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">13</subfield><subfield code="j">1978</subfield><subfield code="c">12</subfield><subfield code="h">2637-2644</subfield><subfield code="g">8</subfield></datafield></record></collection>
|
| series2 |
Springer Online Journal Archives 1860-2002 |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)NLEJ188987134 |
| format |
electronic Article |
| delete_txt_mv |
keep |
| collection |
NL |
| remote_str |
true |
| illustrated |
Not Illustrated |
| issn |
1573-4803 |
| topic_title |
Mechanism of thermoluminescence in magnesium oxide |
| format_facet |
Elektronische Aufsätze Aufsätze Elektronische Ressource |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
zu |
| author2_variant |
a s as j m l jm jml |
| hierarchy_parent_title |
Journal of materials science |
| hierarchy_parent_id |
NLEJ188987134 |
| hierarchy_top_title |
Journal of materials science |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)NLEJ188987134 (DE-600)2015305-3 |
| title |
Mechanism of thermoluminescence in magnesium oxide |
| spellingShingle |
Mechanism of thermoluminescence in magnesium oxide |
| ctrlnum |
(DE-627)NLEJ19454334X |
| title_full |
Mechanism of thermoluminescence in magnesium oxide |
| journal |
Journal of materials science |
| journalStr |
Journal of materials science |
| lang_code |
eng |
| isOA_bool |
false |
| recordtype |
marc |
| publishDateSort |
1978 |
| contenttype_str_mv |
zzz |
| container_start_page |
2637 |
| container_volume |
13 |
| physical |
8 |
| format_se |
Elektronische Aufsätze |
| title_sort |
mechanism of thermoluminescence in magnesium oxide |
| title_auth |
Mechanism of thermoluminescence in magnesium oxide |
| abstract |
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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. |
| 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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. |
| abstract_unstemmed |
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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour. |
| collection_details |
GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE |
| title_short |
Mechanism of thermoluminescence in magnesium oxide |
| url |
http://dx.doi.org/10.1007/BF02402750 |
| remote_bool |
true |
| author2 |
Sathyamoorthy, A. Luthra, J. M. |
| author2Str |
Sathyamoorthy, A. Luthra, J. M. |
| ppnlink |
NLEJ188987134 |
| mediatype_str_mv |
z |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| author2_role |
oth oth |
| up_date |
2024-07-06T01:03:05.155Z |
| _version_ |
1803789570051932160 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ19454334X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210707232240.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070526s1978 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ19454334X</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Mechanism of thermoluminescence in magnesium oxide</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1978</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">8</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="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 Cr3+, Mn2+ and Ni2+ act as emission centres while Fe3+, Co2+ and Cu2+ 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 VM centres. A hole-release mechanism involving recombinations with electrons trapped at activators is proposed to explain the TL behaviour.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Springer Online Journal Archives 1860-2002</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Sathyamoorthy, A.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Luthra, J. M.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Journal of materials science</subfield><subfield code="d">1966</subfield><subfield code="g">13(1978) vom: Dez., Seite 2637-2644</subfield><subfield code="w">(DE-627)NLEJ188987134</subfield><subfield code="w">(DE-600)2015305-3</subfield><subfield code="x">1573-4803</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:13</subfield><subfield code="g">year:1978</subfield><subfield code="g">month:12</subfield><subfield code="g">pages:2637-2644</subfield><subfield code="g">extent:8</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1007/BF02402750</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-SOJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">13</subfield><subfield code="j">1978</subfield><subfield code="c">12</subfield><subfield code="h">2637-2644</subfield><subfield code="g">8</subfield></datafield></record></collection>
|
| score |
7.397975 |