Clinical tests of large area thermoluminescent detectors under radiotherapy beams
Two-dimensional (2D) thermoluminescence (TL) dosimetry systems based on LiF:Mg,Cu,P, together with the newly developed, based on CaSO4:Dy, were tested under radiotherapy beams. The detectors were irradiated in a water phantom with 6 MV X-ray beams from linac and read with a dedicated TLD reader. Dos...
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| Veröffentlicht in: | Radiation measurements 2013-04, Vol.51-52, p.25-30 |
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| creator | Marrazzo, L. Pallotta, S. Kłosowski, M. Czopyk, Ł. Bucciolini, M. Olko, P. Waligórski, M.P.R. |
| description | Two-dimensional (2D) thermoluminescence (TL) dosimetry systems based on LiF:Mg,Cu,P, together with the newly developed, based on CaSO4:Dy, were tested under radiotherapy beams. The detectors were irradiated in a water phantom with 6 MV X-ray beams from linac and read with a dedicated TLD reader. Dose distributions of differently shaped fields and of a full stereotactic plan were measured and compared with planned distributions.
Maximum distance-to-agreement (DTA) in the penumbra region was 1 mm for both LiF:Mg,Cu,P and CaSO4:Dy TL sheets, for all the measured fields. Maximum percentage dose difference (DA%) between planned and measured dose value in low dose gradient regions was up to 11% for LiF:Mg,Cu,P TL sheets and 18% for CaSO4:Dy TL sheets. Concerning the full stereotactic plan, the percentage of points with γ-index below 1 is 54.9% for the LiF:Mg,Cu,P-based foil and 96.9% for the CaSO4:Dy TL sheets. Both 2D TL detector types can be considered to be a promising tool for bi-dimensional dose measurements in radiotherapy. Non-homogeneity, presumably due to the TL sheets manufacture, still affects dosimetric distribution and the agreement between planned and measured distributions may depend on the chosen sample.
► Thermoluminescence films were tested under radiotherapy beams. ► The detectors were irradiated in a water phantom and read with a dedicated TLD reader. ► Dose distributions of treatment plans were measured and compared with planned ones. ► Non-homogeneity, maybe due to sheets manufacture, still affects detectors response. ► If properly corrected, TL films can be considered for 2D dose verification. |
| doi_str_mv | 10.1016/j.radmeas.2013.02.006 |
| format | Article |
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Maximum distance-to-agreement (DTA) in the penumbra region was 1 mm for both LiF:Mg,Cu,P and CaSO4:Dy TL sheets, for all the measured fields. Maximum percentage dose difference (DA%) between planned and measured dose value in low dose gradient regions was up to 11% for LiF:Mg,Cu,P TL sheets and 18% for CaSO4:Dy TL sheets. Concerning the full stereotactic plan, the percentage of points with γ-index below 1 is 54.9% for the LiF:Mg,Cu,P-based foil and 96.9% for the CaSO4:Dy TL sheets. Both 2D TL detector types can be considered to be a promising tool for bi-dimensional dose measurements in radiotherapy. Non-homogeneity, presumably due to the TL sheets manufacture, still affects dosimetric distribution and the agreement between planned and measured distributions may depend on the chosen sample.
► Thermoluminescence films were tested under radiotherapy beams. ► The detectors were irradiated in a water phantom and read with a dedicated TLD reader. ► Dose distributions of treatment plans were measured and compared with planned ones. ► Non-homogeneity, maybe due to sheets manufacture, still affects detectors response. ► If properly corrected, TL films can be considered for 2D dose verification.</description><identifier>ISSN: 1350-4487</identifier><identifier>EISSN: 1879-0925</identifier><identifier>DOI: 10.1016/j.radmeas.2013.02.006</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>2-D dose verification ; Beams (radiation) ; Detectors ; Dysprosium ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Full plan dose verification ; Geochronology ; Isotope geochemistry. Geochronology ; Radiation measurement ; Radiotherapy ; Readers ; TLD sheets ; Two dimensional ; X-rays</subject><ispartof>Radiation measurements, 2013-04, Vol.51-52, p.25-30</ispartof><rights>2013 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c405t-b60e3f1d2f614fc4660478a193a706c57f730d73bbba2b846d6830c3e04dfb843</citedby><cites>FETCH-LOGICAL-c405t-b60e3f1d2f614fc4660478a193a706c57f730d73bbba2b846d6830c3e04dfb843</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1350448713001042$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27412250$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Marrazzo, L.</creatorcontrib><creatorcontrib>Pallotta, S.</creatorcontrib><creatorcontrib>Kłosowski, M.</creatorcontrib><creatorcontrib>Czopyk, Ł.</creatorcontrib><creatorcontrib>Bucciolini, M.</creatorcontrib><creatorcontrib>Olko, P.</creatorcontrib><creatorcontrib>Waligórski, M.P.R.</creatorcontrib><title>Clinical tests of large area thermoluminescent detectors under radiotherapy beams</title><title>Radiation measurements</title><description>Two-dimensional (2D) thermoluminescence (TL) dosimetry systems based on LiF:Mg,Cu,P, together with the newly developed, based on CaSO4:Dy, were tested under radiotherapy beams. The detectors were irradiated in a water phantom with 6 MV X-ray beams from linac and read with a dedicated TLD reader. Dose distributions of differently shaped fields and of a full stereotactic plan were measured and compared with planned distributions.
Maximum distance-to-agreement (DTA) in the penumbra region was 1 mm for both LiF:Mg,Cu,P and CaSO4:Dy TL sheets, for all the measured fields. Maximum percentage dose difference (DA%) between planned and measured dose value in low dose gradient regions was up to 11% for LiF:Mg,Cu,P TL sheets and 18% for CaSO4:Dy TL sheets. Concerning the full stereotactic plan, the percentage of points with γ-index below 1 is 54.9% for the LiF:Mg,Cu,P-based foil and 96.9% for the CaSO4:Dy TL sheets. Both 2D TL detector types can be considered to be a promising tool for bi-dimensional dose measurements in radiotherapy. Non-homogeneity, presumably due to the TL sheets manufacture, still affects dosimetric distribution and the agreement between planned and measured distributions may depend on the chosen sample.
► Thermoluminescence films were tested under radiotherapy beams. ► The detectors were irradiated in a water phantom and read with a dedicated TLD reader. ► Dose distributions of treatment plans were measured and compared with planned ones. ► Non-homogeneity, maybe due to sheets manufacture, still affects detectors response. ► If properly corrected, TL films can be considered for 2D dose verification.</description><subject>2-D dose verification</subject><subject>Beams (radiation)</subject><subject>Detectors</subject><subject>Dysprosium</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Full plan dose verification</subject><subject>Geochronology</subject><subject>Isotope geochemistry. Geochronology</subject><subject>Radiation measurement</subject><subject>Radiotherapy</subject><subject>Readers</subject><subject>TLD sheets</subject><subject>Two dimensional</subject><subject>X-rays</subject><issn>1350-4487</issn><issn>1879-0925</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LAzEQhhdRsFZ_gpCL4GXXyccm25NI8QsKIug5ZJOJpuxHTbaC_96UFq-eZgaemXd4iuKSQkWBypt1FY3r0aSKAeUVsApAHhUz2qhFCQtWH-ee11AK0ajT4iylNQCIhaxnxeuyC0OwpiMTpimR0ZPOxA8kJqIh0yfGfuy2fRgwWRwm4nBCO40xke3gMJKcHMYdZjY_pEXTp_PixJsu4cWhzov3h_u35VO5enl8Xt6tSiugnspWAnJPHfOSCm-FlCBUY-iCGwXS1sorDk7xtm0NaxshnWw4WI4gnM8znxfX-7ubOH5t8_O6D_nHrjMDjtukqRJCUcXyxX9RrpjkjWBNRus9auOYUkSvNzH0Jv5oCnpnW6_1wbbe2dbAdLad964OESZlmz6awYb0t8yUoIzVkLnbPYdZzXfAqJMNOFh0IWax2o3hn6RfneKYIA</recordid><startdate>20130401</startdate><enddate>20130401</enddate><creator>Marrazzo, L.</creator><creator>Pallotta, S.</creator><creator>Kłosowski, M.</creator><creator>Czopyk, Ł.</creator><creator>Bucciolini, M.</creator><creator>Olko, P.</creator><creator>Waligórski, M.P.R.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>7SR</scope><scope>7SU</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20130401</creationdate><title>Clinical tests of large area thermoluminescent detectors under radiotherapy beams</title><author>Marrazzo, L. ; Pallotta, S. ; Kłosowski, M. ; Czopyk, Ł. ; Bucciolini, M. ; Olko, P. ; Waligórski, M.P.R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c405t-b60e3f1d2f614fc4660478a193a706c57f730d73bbba2b846d6830c3e04dfb843</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>2-D dose verification</topic><topic>Beams (radiation)</topic><topic>Detectors</topic><topic>Dysprosium</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Full plan dose verification</topic><topic>Geochronology</topic><topic>Isotope geochemistry. Geochronology</topic><topic>Radiation measurement</topic><topic>Radiotherapy</topic><topic>Readers</topic><topic>TLD sheets</topic><topic>Two dimensional</topic><topic>X-rays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Marrazzo, L.</creatorcontrib><creatorcontrib>Pallotta, S.</creatorcontrib><creatorcontrib>Kłosowski, M.</creatorcontrib><creatorcontrib>Czopyk, Ł.</creatorcontrib><creatorcontrib>Bucciolini, M.</creatorcontrib><creatorcontrib>Olko, P.</creatorcontrib><creatorcontrib>Waligórski, M.P.R.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Engineered Materials Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Radiation measurements</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Marrazzo, L.</au><au>Pallotta, S.</au><au>Kłosowski, M.</au><au>Czopyk, Ł.</au><au>Bucciolini, M.</au><au>Olko, P.</au><au>Waligórski, M.P.R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Clinical tests of large area thermoluminescent detectors under radiotherapy beams</atitle><jtitle>Radiation measurements</jtitle><date>2013-04-01</date><risdate>2013</risdate><volume>51-52</volume><spage>25</spage><epage>30</epage><pages>25-30</pages><issn>1350-4487</issn><eissn>1879-0925</eissn><abstract>Two-dimensional (2D) thermoluminescence (TL) dosimetry systems based on LiF:Mg,Cu,P, together with the newly developed, based on CaSO4:Dy, were tested under radiotherapy beams. The detectors were irradiated in a water phantom with 6 MV X-ray beams from linac and read with a dedicated TLD reader. Dose distributions of differently shaped fields and of a full stereotactic plan were measured and compared with planned distributions.
Maximum distance-to-agreement (DTA) in the penumbra region was 1 mm for both LiF:Mg,Cu,P and CaSO4:Dy TL sheets, for all the measured fields. Maximum percentage dose difference (DA%) between planned and measured dose value in low dose gradient regions was up to 11% for LiF:Mg,Cu,P TL sheets and 18% for CaSO4:Dy TL sheets. Concerning the full stereotactic plan, the percentage of points with γ-index below 1 is 54.9% for the LiF:Mg,Cu,P-based foil and 96.9% for the CaSO4:Dy TL sheets. Both 2D TL detector types can be considered to be a promising tool for bi-dimensional dose measurements in radiotherapy. Non-homogeneity, presumably due to the TL sheets manufacture, still affects dosimetric distribution and the agreement between planned and measured distributions may depend on the chosen sample.
► Thermoluminescence films were tested under radiotherapy beams. ► The detectors were irradiated in a water phantom and read with a dedicated TLD reader. ► Dose distributions of treatment plans were measured and compared with planned ones. ► Non-homogeneity, maybe due to sheets manufacture, still affects detectors response. ► If properly corrected, TL films can be considered for 2D dose verification.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.radmeas.2013.02.006</doi><tpages>6</tpages></addata></record> |
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| subjects | 2-D dose verification Beams (radiation) Detectors Dysprosium Earth sciences Earth, ocean, space Exact sciences and technology Full plan dose verification Geochronology Isotope geochemistry. Geochronology Radiation measurement Radiotherapy Readers TLD sheets Two dimensional X-rays |
| title | Clinical tests of large area thermoluminescent detectors under radiotherapy beams |
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