Analysis of improved neutron activation technique using thick foils for application on medical LINAC environment
An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calcu...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Vagena, E. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016transfer abstract |
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| Schlagwörter: |
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| Umfang: |
8 |
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| Übergeordnetes Werk: |
Enthalten in: The efficacy of EEG-biofeedback for acute pain management, a randomized sham-controlled study of a tailored protocol - Ide, C.V. ELSEVIER, 2017, a journal on accelerators, instrumentation and techniques applied to research in nuclear and atomic physics, materials science and related fields in physics, Amsterdam |
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| Übergeordnetes Werk: |
volume:806 ; year:2016 ; day:11 ; month:01 ; pages:271-278 ; extent:8 |
| Links: |
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| DOI / URN: |
10.1016/j.nima.2015.10.027 |
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ELV019168683 |
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| 520 | |a An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. | ||
| 520 | |a An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. | ||
| 650 | 7 | |a Neutron flux |2 Elsevier | |
| 650 | 7 | |a g-spectroscopy |2 Elsevier | |
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| 650 | 7 | |a Thick activation foils |2 Elsevier | |
| 700 | 1 | |a Stoulos, S. |4 oth | |
| 700 | 1 | |a Manolopoulou, M. |4 oth | |
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10.1016/j.nima.2015.10.027 doi GBV00000000000181A.pica (DE-627)ELV019168683 (ELSEVIER)S0168-9002(15)01234-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 610 VZ 44.90 bkl Vagena, E. verfasserin aut Analysis of improved neutron activation technique using thick foils for application on medical LINAC environment 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. Neutron flux Elsevier g-spectroscopy Elsevier Neutron self-shielding effect Elsevier Thick activation foils Elsevier Stoulos, S. oth Manolopoulou, M. oth Enthalten in North-Holland Publ. Co Ide, C.V. ELSEVIER The efficacy of EEG-biofeedback for acute pain management, a randomized sham-controlled study of a tailored protocol 2017 a journal on accelerators, instrumentation and techniques applied to research in nuclear and atomic physics, materials science and related fields in physics Amsterdam (DE-627)ELV000874671 volume:806 year:2016 day:11 month:01 pages:271-278 extent:8 https://doi.org/10.1016/j.nima.2015.10.027 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.90 Neurologie VZ AR 806 2016 11 0111 271-278 8 045F 530 |
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10.1016/j.nima.2015.10.027 doi GBV00000000000181A.pica (DE-627)ELV019168683 (ELSEVIER)S0168-9002(15)01234-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 610 VZ 44.90 bkl Vagena, E. verfasserin aut Analysis of improved neutron activation technique using thick foils for application on medical LINAC environment 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. Neutron flux Elsevier g-spectroscopy Elsevier Neutron self-shielding effect Elsevier Thick activation foils Elsevier Stoulos, S. oth Manolopoulou, M. oth Enthalten in North-Holland Publ. Co Ide, C.V. ELSEVIER The efficacy of EEG-biofeedback for acute pain management, a randomized sham-controlled study of a tailored protocol 2017 a journal on accelerators, instrumentation and techniques applied to research in nuclear and atomic physics, materials science and related fields in physics Amsterdam (DE-627)ELV000874671 volume:806 year:2016 day:11 month:01 pages:271-278 extent:8 https://doi.org/10.1016/j.nima.2015.10.027 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.90 Neurologie VZ AR 806 2016 11 0111 271-278 8 045F 530 |
| allfields_unstemmed |
10.1016/j.nima.2015.10.027 doi GBV00000000000181A.pica (DE-627)ELV019168683 (ELSEVIER)S0168-9002(15)01234-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 610 VZ 44.90 bkl Vagena, E. verfasserin aut Analysis of improved neutron activation technique using thick foils for application on medical LINAC environment 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. Neutron flux Elsevier g-spectroscopy Elsevier Neutron self-shielding effect Elsevier Thick activation foils Elsevier Stoulos, S. oth Manolopoulou, M. oth Enthalten in North-Holland Publ. Co Ide, C.V. ELSEVIER The efficacy of EEG-biofeedback for acute pain management, a randomized sham-controlled study of a tailored protocol 2017 a journal on accelerators, instrumentation and techniques applied to research in nuclear and atomic physics, materials science and related fields in physics Amsterdam (DE-627)ELV000874671 volume:806 year:2016 day:11 month:01 pages:271-278 extent:8 https://doi.org/10.1016/j.nima.2015.10.027 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.90 Neurologie VZ AR 806 2016 11 0111 271-278 8 045F 530 |
| allfieldsGer |
10.1016/j.nima.2015.10.027 doi GBV00000000000181A.pica (DE-627)ELV019168683 (ELSEVIER)S0168-9002(15)01234-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 610 VZ 44.90 bkl Vagena, E. verfasserin aut Analysis of improved neutron activation technique using thick foils for application on medical LINAC environment 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. Neutron flux Elsevier g-spectroscopy Elsevier Neutron self-shielding effect Elsevier Thick activation foils Elsevier Stoulos, S. oth Manolopoulou, M. oth Enthalten in North-Holland Publ. Co Ide, C.V. ELSEVIER The efficacy of EEG-biofeedback for acute pain management, a randomized sham-controlled study of a tailored protocol 2017 a journal on accelerators, instrumentation and techniques applied to research in nuclear and atomic physics, materials science and related fields in physics Amsterdam (DE-627)ELV000874671 volume:806 year:2016 day:11 month:01 pages:271-278 extent:8 https://doi.org/10.1016/j.nima.2015.10.027 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.90 Neurologie VZ AR 806 2016 11 0111 271-278 8 045F 530 |
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10.1016/j.nima.2015.10.027 doi GBV00000000000181A.pica (DE-627)ELV019168683 (ELSEVIER)S0168-9002(15)01234-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 610 VZ 44.90 bkl Vagena, E. verfasserin aut Analysis of improved neutron activation technique using thick foils for application on medical LINAC environment 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. Neutron flux Elsevier g-spectroscopy Elsevier Neutron self-shielding effect Elsevier Thick activation foils Elsevier Stoulos, S. oth Manolopoulou, M. oth Enthalten in North-Holland Publ. Co Ide, C.V. ELSEVIER The efficacy of EEG-biofeedback for acute pain management, a randomized sham-controlled study of a tailored protocol 2017 a journal on accelerators, instrumentation and techniques applied to research in nuclear and atomic physics, materials science and related fields in physics Amsterdam (DE-627)ELV000874671 volume:806 year:2016 day:11 month:01 pages:271-278 extent:8 https://doi.org/10.1016/j.nima.2015.10.027 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.90 Neurologie VZ AR 806 2016 11 0111 271-278 8 045F 530 |
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Analysis of improved neutron activation technique using thick foils for application on medical LINAC environment |
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An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. |
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An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. |
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An improved neutron activation technique is analyzed that can be used for the characterization of the neutron field in low neutron flux environments, such as medical Linacs. Due to the much lower neutron fluence rates, thick materials instead of thin have been used. The study is focused on the calculations of basic components of the neutron activation analysis that are required for accurate results, such as the efficiency of the gamma detector used for γ-spectrometry as well as crucial correction factors that are required when dealing with thick samples in different geometries and forms. A Monte Carlo detector model, implemented by Geant4 MC Code was adjusted in accordance to results from various measurements performed. Moreover, regarding to estimate the self-shielding correction factors a new approach using both Monte Carlo and analytical approach was presented. This improvement gives more accurate results, which are important for both activation and shielding studies that take place in many facilities. A quite good agreement between the neutron fluxes is achieved; according to the data obtained a mean value of (2.13±0.34)×105 ncm−2 s−1 is representative for the isocenter of the specific Linac that corresponds to fluence of (5.53±0.94)×106 ncm−2 Gy−1. Comparable fluencies reported in the literature for similar Linacs operating with photon beams at 15MeV. |
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Analysis of improved neutron activation technique using thick foils for application on medical LINAC environment |
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