Spatial response of synthetic microDiamond and diode detectors measured with kilovoltage synchrotron radiation.
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| Title: | Spatial response of synthetic microDiamond and diode detectors measured with kilovoltage synchrotron radiation. |
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| Authors: | Butler, Duncan J.1 duncan.butler@arpansa.gov.au, Beveridge, Toby1, Lehmann, Joerg2, Oliver, Christopher P.1, Stevenson, Andrew W.3,4, Livingstone, Jayde3 |
| Source: | Medical Physics. Feb2018, Vol. 45 Issue 2, p943-952. 10p. |
| Subjects: | Radiation dosimetry, Synchrotron radiation, Nuclear counters, Radioscopic diagnosis, Solid state detectors |
| Abstract: | Purpose: To map the spatial response of four solid‐state radiation detectors of types commonly used for radiotherapy dosimetry. Methods: PTW model 60016 Diode P, 60017 Diode E, 60018 Diode SRS, and 60019 microDiamond detectors were radiographed using a high resolution conventional X‐ray system. Their spatial response was then investigated using a 0.1 mm diameter beam of 95 keV average energy photons generated by a synchrotron. The detectors were scanned through the beam while their signal was recorded as a function of position, to map the response. These 2D response maps were created in both the end‐on and side‐on orientations. Results: The results show the location and size of the active region. End‐on, the active area was determined to be centrally located and within 0.2 mm of the manufacturer's specified diameter. The active areas of the 60016 Diode P, 60017 Diode E, 60018 Diode SRS detectors are uniform to within approximately 5%. The 60019 microDiamond showed local variations up to 30%. The extra‐cameral signal in the microDiamond was calculated from the side‐on scan to be approximately 8% of the signal from the active element. Conclusions: The spatial response of four solid‐state detectors has been measured. The technique yielded information about the location and uniformity of the active area, and the extra‐cameral signal, for the beam quality used. [ABSTRACT FROM AUTHOR] |
| Copyright of Medical Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 127932711 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Spatial response of synthetic microDiamond and diode detectors measured with kilovoltage synchrotron radiation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Butler%2C+Duncan+J%2E%22">Butler, Duncan J.</searchLink><relatesTo>1</relatesTo><i> duncan.butler@arpansa.gov.au</i><br /><searchLink fieldCode="AR" term="%22Beveridge%2C+Toby%22">Beveridge, Toby</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lehmann%2C+Joerg%22">Lehmann, Joerg</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Oliver%2C+Christopher+P%2E%22">Oliver, Christopher P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Stevenson%2C+Andrew+W%2E%22">Stevenson, Andrew W.</searchLink><relatesTo>3,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Livingstone%2C+Jayde%22">Livingstone, Jayde</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Medical+Physics%22">Medical Physics</searchLink>. Feb2018, Vol. 45 Issue 2, p943-952. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Radiation+dosimetry%22">Radiation dosimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Synchrotron+radiation%22">Synchrotron radiation</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+counters%22">Nuclear counters</searchLink><br /><searchLink fieldCode="DE" term="%22Radioscopic+diagnosis%22">Radioscopic diagnosis</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+state+detectors%22">Solid state detectors</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Purpose: To map the spatial response of four solid‐state radiation detectors of types commonly used for radiotherapy dosimetry. Methods: PTW model 60016 Diode P, 60017 Diode E, 60018 Diode SRS, and 60019 microDiamond detectors were radiographed using a high resolution conventional X‐ray system. Their spatial response was then investigated using a 0.1 mm diameter beam of 95 keV average energy photons generated by a synchrotron. The detectors were scanned through the beam while their signal was recorded as a function of position, to map the response. These 2D response maps were created in both the end‐on and side‐on orientations. Results: The results show the location and size of the active region. End‐on, the active area was determined to be centrally located and within 0.2 mm of the manufacturer's specified diameter. The active areas of the 60016 Diode P, 60017 Diode E, 60018 Diode SRS detectors are uniform to within approximately 5%. The 60019 microDiamond showed local variations up to 30%. The extra‐cameral signal in the microDiamond was calculated from the side‐on scan to be approximately 8% of the signal from the active element. Conclusions: The spatial response of four solid‐state detectors has been measured. The technique yielded information about the location and uniformity of the active area, and the extra‐cameral signal, for the beam quality used. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Medical Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/mp.12733 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 943 Subjects: – SubjectFull: Radiation dosimetry Type: general – SubjectFull: Synchrotron radiation Type: general – SubjectFull: Nuclear counters Type: general – SubjectFull: Radioscopic diagnosis Type: general – SubjectFull: Solid state detectors Type: general Titles: – TitleFull: Spatial response of synthetic microDiamond and diode detectors measured with kilovoltage synchrotron radiation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Butler, Duncan J. – PersonEntity: Name: NameFull: Beveridge, Toby – PersonEntity: Name: NameFull: Lehmann, Joerg – PersonEntity: Name: NameFull: Oliver, Christopher P. – PersonEntity: Name: NameFull: Stevenson, Andrew W. – PersonEntity: Name: NameFull: Livingstone, Jayde IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 00942405 Numbering: – Type: volume Value: 45 – Type: issue Value: 2 Titles: – TitleFull: Medical Physics Type: main |
| ResultId | 1 |
