Characterization of GaN dosimetry for 6 MV photon beam in clinical conditions
Identifieur interne : 000105 ( PascalFrancis/Corpus ); précédent : 000104; suivant : 000106Characterization of GaN dosimetry for 6 MV photon beam in clinical conditions
Auteurs : A. Chaikh ; J. Balosso ; J.-Y. Giraud ; R. Wang ; P. Pittet ; G.-N. LuSource :
- Radiation measurements [ 1350-4487 ] ; 2014.
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English descriptors
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Abstract
We characterized a recently proposed implantable GaN-based dosimeter in clinical conditions, for its application in external radiotherapy according to ESTRO (European Society for Radiotherapy & Oncology) practical guidelines. Our studies were carried out using a 6 MV photon beam with the dosimeter under test in a water tank or a PMMA phantom. They were focused on evaluating short term and long term reproducibility of measurements, and assessing the effects of parameters such as field size, source-skin distance, use of wedge filter, beam incidence, dose rate, accumulated dose, GaN-induced dose perturbation, air cavities and temperature. The estimated repeatability and reproducibility are better than 0.5% and 2% at 1σ respectively. There are no significant effects of the parameters under our studies, apart from field size and temperature. The field-size dependence is due to over-compensation of the GaN response method of the dosimeter, the resulting errors remain lower than 5% for field sizes up to 10 × 10 cm2. The temperature dependence mainly results from the GaN luminescence properties, and causes the GaN response to decrease steadily when increasing temperature, with a sensitivity of - 1.4%/°C. The observed quasi-linear temperature dependence may facilitate the correction to improve the accuracy of measurements.
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Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 15-0018469 INIST |
---|---|
ET : | Characterization of GaN dosimetry for 6 MV photon beam in clinical conditions |
AU : | CHAIKH (A.); BALOSSO (J.); GIRAUD (J.-Y.); WANG (R.); PITTET (P.); LU (G.-N.); KHOURI (Helen); DE AZEVEDO (Walter M.); CALDAS (Linda V. E.); BAFFA (Oswaldo); BAILLIFF (Ian); BILSKI (Pawel); BRANDAN (María-Ester); CHEN (Reuven); D'ERRICO (Francesco); DEWERD (Larry); MCKEEVER (Steve); SAVETA (Miljanić); ROSENFELD (Anatoly); STADTMANN (Hannes); SAWAKUCHI (Gabriel O.); VANHAVERE (Filip); WODA (Clemens); YUKIHARA (Eduardo); BOS (Adrie J. J.) |
AF : | Service de Radiothérapie, Centre Hospitalier, Universitaire de Grenoble, BP 217/38043 Grenoble/France (1 aut., 2 aut., 3 aut.); Université Joseph Fourier/Grenoble/France (2 aut.); Institut des Nanotechnologies de Lyon, INL, CNRS UMR5270, Université de Lyon/Lyon 69003/France (4 aut., 5 aut., 6 aut.); Université Lyon 1/Villeurbanne 69622/France (4 aut., 5 aut., 6 aut.); Federal University of Pernambuco/Recife/Brésil (1 aut., 2 aut.); IPEN-CNEN/SP/São Paulo/Brésil (3 aut.); University of São Paulo/Brésil (4 aut.); Durham University/Royaume-Uni (5 aut.); Institute of Nuclear Physics/Krakow/Pologne (6 aut.); Universidad Nacional Autónoma de México/Mexico/Mexique (7 aut.); Tel-Aviv University/Tel-Aviv/Israël (8 aut.); Yale University/New Haven/Etats-Unis (9 aut.); University of Wisconsin/Madison/Etats-Unis (10 aut.); Oklahoma State University/Stillwater/Etats-Unis (11 aut., 18 aut.); Ruder Bošković Institute/Zagreb/Croatie (12 aut.); University of Wollongong/Wollongong/Australie (13 aut.); Seibersdorf Labor GmgH/Seibersdorf/Autriche (14 aut.); Carletown University/Ottawa/Canada (15 aut.); Belgian Nuclear Research Centre/Mol/Belgique (16 aut.); Helmholtz Zentrum München/Neuherberg/Allemagne (17 aut.); Delft University of Technology/Pays-Bas (19 aut.) |
DT : | Publication en série; Congrès; Niveau analytique |
SO : | Radiation measurements; ISSN 1350-4487; Royaume-Uni; Da. 2014; Vol. 71; Pp. 392-395; Bibl. 1/4 p. |
LA : | Anglais |
EA : | We characterized a recently proposed implantable GaN-based dosimeter in clinical conditions, for its application in external radiotherapy according to ESTRO (European Society for Radiotherapy & Oncology) practical guidelines. Our studies were carried out using a 6 MV photon beam with the dosimeter under test in a water tank or a PMMA phantom. They were focused on evaluating short term and long term reproducibility of measurements, and assessing the effects of parameters such as field size, source-skin distance, use of wedge filter, beam incidence, dose rate, accumulated dose, GaN-induced dose perturbation, air cavities and temperature. The estimated repeatability and reproducibility are better than 0.5% and 2% at 1σ respectively. There are no significant effects of the parameters under our studies, apart from field size and temperature. The field-size dependence is due to over-compensation of the GaN response method of the dosimeter, the resulting errors remain lower than 5% for field sizes up to 10 × 10 cm2. The temperature dependence mainly results from the GaN luminescence properties, and causes the GaN response to decrease steadily when increasing temperature, with a sensitivity of - 1.4%/°C. The observed quasi-linear temperature dependence may facilitate the correction to improve the accuracy of measurements. |
CC : | 001E01C02; 220C02 |
FD : | Température; Erreur; Luminescence; Correction; Précision; Dosimétrie |
ED : | temperature; errors; luminescence; corrections; accuracy |
SD : | Temperatura; Error; Luminiscencia; Corrección; Precisión |
LO : | INIST-17536.354000504590240830 |
ID : | 15-0018469 |
Links to Exploration step
Pascal:15-0018469Le document en format XML
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<front><div type="abstract" xml:lang="en">We characterized a recently proposed implantable GaN-based dosimeter in clinical conditions, for its application in external radiotherapy according to ESTRO (European Society for Radiotherapy & Oncology) practical guidelines. Our studies were carried out using a 6 MV photon beam with the dosimeter under test in a water tank or a PMMA phantom. They were focused on evaluating short term and long term reproducibility of measurements, and assessing the effects of parameters such as field size, source-skin distance, use of wedge filter, beam incidence, dose rate, accumulated dose, GaN-induced dose perturbation, air cavities and temperature. The estimated repeatability and reproducibility are better than 0.5% and 2% at 1σ respectively. There are no significant effects of the parameters under our studies, apart from field size and temperature. The field-size dependence is due to over-compensation of the GaN response method of the dosimeter, the resulting errors remain lower than 5% for field sizes up to 10 × 10 cm<sup>2</sup>
. The temperature dependence mainly results from the GaN luminescence properties, and causes the GaN response to decrease steadily when increasing temperature, with a sensitivity of - 1.4%/°C. The observed quasi-linear temperature dependence may facilitate the correction to improve the accuracy of measurements.</div>
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<fA09 i1="01" i2="1" l="ENG"><s1>Proceedings of the 17<sup>th</sup>
Solid State Dosimetry Conference (SSD17), Recife, Brazil, 22<sup>th</sup>
-27<sup>th</sup>
September, 2013</s1>
</fA09>
<fA11 i1="01" i2="1"><s1>CHAIKH (A.)</s1>
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<fA11 i1="02" i2="1"><s1>BALOSSO (J.)</s1>
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<fA11 i1="03" i2="1"><s1>GIRAUD (J.-Y.)</s1>
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<fA11 i1="04" i2="1"><s1>WANG (R.)</s1>
</fA11>
<fA11 i1="05" i2="1"><s1>PITTET (P.)</s1>
</fA11>
<fA11 i1="06" i2="1"><s1>LU (G.-N.)</s1>
</fA11>
<fA12 i1="01" i2="1"><s1>KHOURI (Helen)</s1>
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</fA12>
<fA12 i1="02" i2="1"><s1>DE AZEVEDO (Walter M.)</s1>
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<fA12 i1="03" i2="1"><s1>CALDAS (Linda V. E.)</s1>
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<fA12 i1="06" i2="1"><s1>BILSKI (Pawel)</s1>
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<fA12 i1="07" i2="1"><s1>BRANDAN (María-Ester)</s1>
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<fA12 i1="08" i2="1"><s1>CHEN (Reuven)</s1>
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</fA12>
<fA12 i1="09" i2="1"><s1>D'ERRICO (Francesco)</s1>
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<s9>ed.</s9>
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<fA12 i1="12" i2="1"><s1>SAVETA (Miljanić)</s1>
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<fA12 i1="13" i2="1"><s1>ROSENFELD (Anatoly)</s1>
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<fA12 i1="14" i2="1"><s1>STADTMANN (Hannes)</s1>
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</fA15>
<fA15 i1="05"><s1>Institute of Nuclear Physics</s1>
<s2>Krakow</s2>
<s3>POL</s3>
<sZ>6 aut.</sZ>
</fA15>
<fA15 i1="06"><s1>Universidad Nacional Autónoma de México</s1>
<s2>Mexico</s2>
<s3>MEX</s3>
<sZ>7 aut.</sZ>
</fA15>
<fA15 i1="07"><s1>Tel-Aviv University</s1>
<s2>Tel-Aviv</s2>
<s3>ISR</s3>
<sZ>8 aut.</sZ>
</fA15>
<fA15 i1="08"><s1>Yale University</s1>
<s2>New Haven</s2>
<s3>USA</s3>
<sZ>9 aut.</sZ>
</fA15>
<fA15 i1="09"><s1>University of Wisconsin</s1>
<s2>Madison</s2>
<s3>USA</s3>
<sZ>10 aut.</sZ>
</fA15>
<fA15 i1="10"><s1>Oklahoma State University</s1>
<s2>Stillwater</s2>
<s3>USA</s3>
<sZ>11 aut.</sZ>
<sZ>18 aut.</sZ>
</fA15>
<fA15 i1="11"><s1>Ruder Bošković Institute</s1>
<s2>Zagreb</s2>
<s3>HRV</s3>
<sZ>12 aut.</sZ>
</fA15>
<fA15 i1="12"><s1>University of Wollongong</s1>
<s2>Wollongong</s2>
<s3>AUS</s3>
<sZ>13 aut.</sZ>
</fA15>
<fA15 i1="13"><s1>Seibersdorf Labor GmgH</s1>
<s2>Seibersdorf</s2>
<s3>AUT</s3>
<sZ>14 aut.</sZ>
</fA15>
<fA15 i1="14"><s1>Carletown University</s1>
<s2>Ottawa</s2>
<s3>CAN</s3>
<sZ>15 aut.</sZ>
</fA15>
<fA15 i1="15"><s1>Belgian Nuclear Research Centre</s1>
<s2>Mol</s2>
<s3>BEL</s3>
<sZ>16 aut.</sZ>
</fA15>
<fA15 i1="16"><s1>Helmholtz Zentrum München</s1>
<s2>Neuherberg</s2>
<s3>DEU</s3>
<sZ>17 aut.</sZ>
</fA15>
<fA15 i1="17"><s1>Delft University of Technology</s1>
<s3>NLD</s3>
<sZ>19 aut.</sZ>
</fA15>
<fA18 i1="01" i2="1"><s1>International Solid State Dosimetry Organisation (ISSDO)</s1>
<s3>INT</s3>
<s9>org-cong.</s9>
</fA18>
<fA20><s1>392-395</s1>
</fA20>
<fA21><s1>2014</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>17536</s2>
<s5>354000504590240830</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2015 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45><s0>1/4 p.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>15-0018469</s0>
</fA47>
<fA60><s1>P</s1>
<s2>C</s2>
</fA60>
<fA61><s0>A</s0>
</fA61>
<fA64 i1="01" i2="1"><s0>Radiation measurements</s0>
</fA64>
<fA66 i1="01"><s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>We characterized a recently proposed implantable GaN-based dosimeter in clinical conditions, for its application in external radiotherapy according to ESTRO (European Society for Radiotherapy & Oncology) practical guidelines. Our studies were carried out using a 6 MV photon beam with the dosimeter under test in a water tank or a PMMA phantom. They were focused on evaluating short term and long term reproducibility of measurements, and assessing the effects of parameters such as field size, source-skin distance, use of wedge filter, beam incidence, dose rate, accumulated dose, GaN-induced dose perturbation, air cavities and temperature. The estimated repeatability and reproducibility are better than 0.5% and 2% at 1σ respectively. There are no significant effects of the parameters under our studies, apart from field size and temperature. The field-size dependence is due to over-compensation of the GaN response method of the dosimeter, the resulting errors remain lower than 5% for field sizes up to 10 × 10 cm<sup>2</sup>
. The temperature dependence mainly results from the GaN luminescence properties, and causes the GaN response to decrease steadily when increasing temperature, with a sensitivity of - 1.4%/°C. The observed quasi-linear temperature dependence may facilitate the correction to improve the accuracy of measurements.</s0>
</fC01>
<fC02 i1="01" i2="2"><s0>001E01C02</s0>
</fC02>
<fC02 i1="02" i2="2"><s0>220C02</s0>
</fC02>
<fC03 i1="01" i2="2" l="FRE"><s0>Température</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="2" l="ENG"><s0>temperature</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="2" l="SPA"><s0>Temperatura</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="2" l="FRE"><s0>Erreur</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="2" l="ENG"><s0>errors</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="2" l="SPA"><s0>Error</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="2" l="FRE"><s0>Luminescence</s0>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="2" l="ENG"><s0>luminescence</s0>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="2" l="SPA"><s0>Luminiscencia</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="2" l="FRE"><s0>Correction</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="2" l="ENG"><s0>corrections</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="2" l="SPA"><s0>Corrección</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="2" l="FRE"><s0>Précision</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="2" l="ENG"><s0>accuracy</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="2" l="SPA"><s0>Precisión</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="2" l="FRE"><s0>Dosimétrie</s0>
<s4>INC</s4>
<s5>52</s5>
</fC03>
<fN21><s1>026</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
<pR><fA30 i1="01" i2="1" l="ENG"><s1>SSD17 Solid State Dosimetry Conference</s1>
<s2>17</s2>
<s3>Recife BRA</s3>
<s4>2013-09-22</s4>
</fA30>
</pR>
</standard>
<server><NO>PASCAL 15-0018469 INIST</NO>
<ET>Characterization of GaN dosimetry for 6 MV photon beam in clinical conditions</ET>
<AU>CHAIKH (A.); BALOSSO (J.); GIRAUD (J.-Y.); WANG (R.); PITTET (P.); LU (G.-N.); KHOURI (Helen); DE AZEVEDO (Walter M.); CALDAS (Linda V. E.); BAFFA (Oswaldo); BAILLIFF (Ian); BILSKI (Pawel); BRANDAN (María-Ester); CHEN (Reuven); D'ERRICO (Francesco); DEWERD (Larry); MCKEEVER (Steve); SAVETA (Miljanić); ROSENFELD (Anatoly); STADTMANN (Hannes); SAWAKUCHI (Gabriel O.); VANHAVERE (Filip); WODA (Clemens); YUKIHARA (Eduardo); BOS (Adrie J. J.)</AU>
<AF>Service de Radiothérapie, Centre Hospitalier, Universitaire de Grenoble, BP 217/38043 Grenoble/France (1 aut., 2 aut., 3 aut.); Université Joseph Fourier/Grenoble/France (2 aut.); Institut des Nanotechnologies de Lyon, INL, CNRS UMR5270, Université de Lyon/Lyon 69003/France (4 aut., 5 aut., 6 aut.); Université Lyon 1/Villeurbanne 69622/France (4 aut., 5 aut., 6 aut.); Federal University of Pernambuco/Recife/Brésil (1 aut., 2 aut.); IPEN-CNEN/SP/São Paulo/Brésil (3 aut.); University of São Paulo/Brésil (4 aut.); Durham University/Royaume-Uni (5 aut.); Institute of Nuclear Physics/Krakow/Pologne (6 aut.); Universidad Nacional Autónoma de México/Mexico/Mexique (7 aut.); Tel-Aviv University/Tel-Aviv/Israël (8 aut.); Yale University/New Haven/Etats-Unis (9 aut.); University of Wisconsin/Madison/Etats-Unis (10 aut.); Oklahoma State University/Stillwater/Etats-Unis (11 aut., 18 aut.); Ruder Bošković Institute/Zagreb/Croatie (12 aut.); University of Wollongong/Wollongong/Australie (13 aut.); Seibersdorf Labor GmgH/Seibersdorf/Autriche (14 aut.); Carletown University/Ottawa/Canada (15 aut.); Belgian Nuclear Research Centre/Mol/Belgique (16 aut.); Helmholtz Zentrum München/Neuherberg/Allemagne (17 aut.); Delft University of Technology/Pays-Bas (19 aut.)</AF>
<DT>Publication en série; Congrès; Niveau analytique</DT>
<SO>Radiation measurements; ISSN 1350-4487; Royaume-Uni; Da. 2014; Vol. 71; Pp. 392-395; Bibl. 1/4 p.</SO>
<LA>Anglais</LA>
<EA>We characterized a recently proposed implantable GaN-based dosimeter in clinical conditions, for its application in external radiotherapy according to ESTRO (European Society for Radiotherapy & Oncology) practical guidelines. Our studies were carried out using a 6 MV photon beam with the dosimeter under test in a water tank or a PMMA phantom. They were focused on evaluating short term and long term reproducibility of measurements, and assessing the effects of parameters such as field size, source-skin distance, use of wedge filter, beam incidence, dose rate, accumulated dose, GaN-induced dose perturbation, air cavities and temperature. The estimated repeatability and reproducibility are better than 0.5% and 2% at 1σ respectively. There are no significant effects of the parameters under our studies, apart from field size and temperature. The field-size dependence is due to over-compensation of the GaN response method of the dosimeter, the resulting errors remain lower than 5% for field sizes up to 10 × 10 cm<sup>2</sup>
. The temperature dependence mainly results from the GaN luminescence properties, and causes the GaN response to decrease steadily when increasing temperature, with a sensitivity of - 1.4%/°C. The observed quasi-linear temperature dependence may facilitate the correction to improve the accuracy of measurements.</EA>
<CC>001E01C02; 220C02</CC>
<FD>Température; Erreur; Luminescence; Correction; Précision; Dosimétrie</FD>
<ED>temperature; errors; luminescence; corrections; accuracy</ED>
<SD>Temperatura; Error; Luminiscencia; Corrección; Precisión</SD>
<LO>INIST-17536.354000504590240830</LO>
<ID>15-0018469</ID>
</server>
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