Self-shielding effects in neutron spectra measurements for neutron capture therapy by means of activation foils
The design and optimisation of a neutron beam for neutron capture therapy (NCT) is accompanied by the neutron spectra measurements at the target position. The method of activation detectors was applied for the neutron spectra measurements. Epithermal neutron energy region imposes the resonance struc...
Gespeichert in:
| Veröffentlicht in: | Radiation protection dosimetry 2004-01, Vol.110 (1-4), p.823-826 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 826 |
|---|---|
| container_issue | 1-4 |
| container_start_page | 823 |
| container_title | Radiation protection dosimetry |
| container_volume | 110 |
| creator | Pytel, Krzysztof Józefowicz, Krystyna Pytel, Beatrycze Kozieł, Alina |
| description | The design and optimisation of a neutron beam for neutron capture therapy (NCT) is accompanied by the neutron spectra measurements at the target position. The method of activation detectors was applied for the neutron spectra measurements. Epithermal neutron energy region imposes the resonance structure of activation cross sections resulting in strong self-shielding effects. The neutron self-shielding correction factor was calculated using a simple analytical model of a single absorption event. Such a procedure has been applied to individual cross sections from pointwise ENDF/B-VI library and new corrected activation cross sections were introduced to a spectra unfolding algorithm. The method has been verified experimentally both for isotropic and for parallel neutron beams. Two sets of diluted and non-diluted activation foils covered with cadmium were irradiated in the neutron field. The comparison of activation rates of diluted and non-diluted foils has demonstrated the correctness of the applied self-shielding model. |
| doi_str_mv | 10.1093/rpd/nch134 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_14720179</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>14720179</sourcerecordid><originalsourceid>FETCH-LOGICAL-c418t-3f4ef4830a6320d8f59021c77567ee0228024d831f659fc2038385159d7cd4403</originalsourceid><addsrcrecordid>eNpF0E1LHTEUBuAgFr1aN_6AkpWLwtSTr8nMspX2WhFKsYXSTYiZk97ofJlkSu-_N3IvdnXgvA_v4iXknMEHBq24jHN3OboNE_KArJiWvBIS6kOyAiZl1UgOx-QkpQcArlslj8gxU0IJrcSKTHfY-yptAvZdGP9Q9B5dTjSMdMQlx2mkaS6faOmANi0RBxxL7qf4Cpydcwlo3mC085beb1_smOjkqXU5_LU5FOan0Ke35I23fcKz_T0lP798_nF1Xd1-W3-9-nhbOcmaXAkv0ctGgK0Fh67xqgXOnNaq1ojAeQNcdo1gvlatdxxEIxrFVNtp10kJ4pRc7HrnOD0tmLIZQnLY93bEaUmGSc2B6bbA9zvo4pRSRG_mGAYbt4aBeZnXlHnNbt6C3-1bl_sBu_90v2cB1Q6ElPHfa27jo6l1Eeb6128D65vv67sbbT6JZx1ihtI</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>14720179</pqid></control><display><type>article</type><title>Self-shielding effects in neutron spectra measurements for neutron capture therapy by means of activation foils</title><source>MEDLINE</source><source>Oxford University Press Journals All Titles (1996-Current)</source><creator>Pytel, Krzysztof ; Józefowicz, Krystyna ; Pytel, Beatrycze ; Kozieł, Alina</creator><creatorcontrib>Pytel, Krzysztof ; Józefowicz, Krystyna ; Pytel, Beatrycze ; Kozieł, Alina</creatorcontrib><description>The design and optimisation of a neutron beam for neutron capture therapy (NCT) is accompanied by the neutron spectra measurements at the target position. The method of activation detectors was applied for the neutron spectra measurements. Epithermal neutron energy region imposes the resonance structure of activation cross sections resulting in strong self-shielding effects. The neutron self-shielding correction factor was calculated using a simple analytical model of a single absorption event. Such a procedure has been applied to individual cross sections from pointwise ENDF/B-VI library and new corrected activation cross sections were introduced to a spectra unfolding algorithm. The method has been verified experimentally both for isotropic and for parallel neutron beams. Two sets of diluted and non-diluted activation foils covered with cadmium were irradiated in the neutron field. The comparison of activation rates of diluted and non-diluted foils has demonstrated the correctness of the applied self-shielding model.</description><identifier>ISSN: 0144-8420</identifier><identifier>EISSN: 1742-3406</identifier><identifier>DOI: 10.1093/rpd/nch134</identifier><identifier>PMID: 15353753</identifier><language>eng</language><publisher>England: Oxford University Press</publisher><subject>Absorption ; Algorithms ; Body Burden ; Computer Simulation ; Humans ; Linear Energy Transfer ; Neutron Capture Therapy - methods ; Neutrons - therapeutic use ; Radiation Dosage ; Radiation Protection - methods ; Radiometry - instrumentation ; Radiometry - methods ; Relative Biological Effectiveness ; Reproducibility of Results ; Risk Assessment - methods ; Risk Factors ; Scattering, Radiation ; Sensitivity and Specificity ; Spectrum Analysis - methods</subject><ispartof>Radiation protection dosimetry, 2004-01, Vol.110 (1-4), p.823-826</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c418t-3f4ef4830a6320d8f59021c77567ee0228024d831f659fc2038385159d7cd4403</citedby><cites>FETCH-LOGICAL-c418t-3f4ef4830a6320d8f59021c77567ee0228024d831f659fc2038385159d7cd4403</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15353753$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pytel, Krzysztof</creatorcontrib><creatorcontrib>Józefowicz, Krystyna</creatorcontrib><creatorcontrib>Pytel, Beatrycze</creatorcontrib><creatorcontrib>Kozieł, Alina</creatorcontrib><title>Self-shielding effects in neutron spectra measurements for neutron capture therapy by means of activation foils</title><title>Radiation protection dosimetry</title><addtitle>Radiat Prot Dosimetry</addtitle><description>The design and optimisation of a neutron beam for neutron capture therapy (NCT) is accompanied by the neutron spectra measurements at the target position. The method of activation detectors was applied for the neutron spectra measurements. Epithermal neutron energy region imposes the resonance structure of activation cross sections resulting in strong self-shielding effects. The neutron self-shielding correction factor was calculated using a simple analytical model of a single absorption event. Such a procedure has been applied to individual cross sections from pointwise ENDF/B-VI library and new corrected activation cross sections were introduced to a spectra unfolding algorithm. The method has been verified experimentally both for isotropic and for parallel neutron beams. Two sets of diluted and non-diluted activation foils covered with cadmium were irradiated in the neutron field. The comparison of activation rates of diluted and non-diluted foils has demonstrated the correctness of the applied self-shielding model.</description><subject>Absorption</subject><subject>Algorithms</subject><subject>Body Burden</subject><subject>Computer Simulation</subject><subject>Humans</subject><subject>Linear Energy Transfer</subject><subject>Neutron Capture Therapy - methods</subject><subject>Neutrons - therapeutic use</subject><subject>Radiation Dosage</subject><subject>Radiation Protection - methods</subject><subject>Radiometry - instrumentation</subject><subject>Radiometry - methods</subject><subject>Relative Biological Effectiveness</subject><subject>Reproducibility of Results</subject><subject>Risk Assessment - methods</subject><subject>Risk Factors</subject><subject>Scattering, Radiation</subject><subject>Sensitivity and Specificity</subject><subject>Spectrum Analysis - methods</subject><issn>0144-8420</issn><issn>1742-3406</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpF0E1LHTEUBuAgFr1aN_6AkpWLwtSTr8nMspX2WhFKsYXSTYiZk97ofJlkSu-_N3IvdnXgvA_v4iXknMEHBq24jHN3OboNE_KArJiWvBIS6kOyAiZl1UgOx-QkpQcArlslj8gxU0IJrcSKTHfY-yptAvZdGP9Q9B5dTjSMdMQlx2mkaS6faOmANi0RBxxL7qf4Cpydcwlo3mC085beb1_smOjkqXU5_LU5FOan0Ke35I23fcKz_T0lP798_nF1Xd1-W3-9-nhbOcmaXAkv0ctGgK0Fh67xqgXOnNaq1ojAeQNcdo1gvlatdxxEIxrFVNtp10kJ4pRc7HrnOD0tmLIZQnLY93bEaUmGSc2B6bbA9zvo4pRSRG_mGAYbt4aBeZnXlHnNbt6C3-1bl_sBu_90v2cB1Q6ElPHfa27jo6l1Eeb6128D65vv67sbbT6JZx1ihtI</recordid><startdate>20040101</startdate><enddate>20040101</enddate><creator>Pytel, Krzysztof</creator><creator>Józefowicz, Krystyna</creator><creator>Pytel, Beatrycze</creator><creator>Kozieł, Alina</creator><general>Oxford University Press</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>20040101</creationdate><title>Self-shielding effects in neutron spectra measurements for neutron capture therapy by means of activation foils</title><author>Pytel, Krzysztof ; Józefowicz, Krystyna ; Pytel, Beatrycze ; Kozieł, Alina</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c418t-3f4ef4830a6320d8f59021c77567ee0228024d831f659fc2038385159d7cd4403</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Absorption</topic><topic>Algorithms</topic><topic>Body Burden</topic><topic>Computer Simulation</topic><topic>Humans</topic><topic>Linear Energy Transfer</topic><topic>Neutron Capture Therapy - methods</topic><topic>Neutrons - therapeutic use</topic><topic>Radiation Dosage</topic><topic>Radiation Protection - methods</topic><topic>Radiometry - instrumentation</topic><topic>Radiometry - methods</topic><topic>Relative Biological Effectiveness</topic><topic>Reproducibility of Results</topic><topic>Risk Assessment - methods</topic><topic>Risk Factors</topic><topic>Scattering, Radiation</topic><topic>Sensitivity and Specificity</topic><topic>Spectrum Analysis - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pytel, Krzysztof</creatorcontrib><creatorcontrib>Józefowicz, Krystyna</creatorcontrib><creatorcontrib>Pytel, Beatrycze</creatorcontrib><creatorcontrib>Kozieł, Alina</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Radiation protection dosimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pytel, Krzysztof</au><au>Józefowicz, Krystyna</au><au>Pytel, Beatrycze</au><au>Kozieł, Alina</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Self-shielding effects in neutron spectra measurements for neutron capture therapy by means of activation foils</atitle><jtitle>Radiation protection dosimetry</jtitle><addtitle>Radiat Prot Dosimetry</addtitle><date>2004-01-01</date><risdate>2004</risdate><volume>110</volume><issue>1-4</issue><spage>823</spage><epage>826</epage><pages>823-826</pages><issn>0144-8420</issn><eissn>1742-3406</eissn><abstract>The design and optimisation of a neutron beam for neutron capture therapy (NCT) is accompanied by the neutron spectra measurements at the target position. The method of activation detectors was applied for the neutron spectra measurements. Epithermal neutron energy region imposes the resonance structure of activation cross sections resulting in strong self-shielding effects. The neutron self-shielding correction factor was calculated using a simple analytical model of a single absorption event. Such a procedure has been applied to individual cross sections from pointwise ENDF/B-VI library and new corrected activation cross sections were introduced to a spectra unfolding algorithm. The method has been verified experimentally both for isotropic and for parallel neutron beams. Two sets of diluted and non-diluted activation foils covered with cadmium were irradiated in the neutron field. The comparison of activation rates of diluted and non-diluted foils has demonstrated the correctness of the applied self-shielding model.</abstract><cop>England</cop><pub>Oxford University Press</pub><pmid>15353753</pmid><doi>10.1093/rpd/nch134</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0144-8420 |
| ispartof | Radiation protection dosimetry, 2004-01, Vol.110 (1-4), p.823-826 |
| issn | 0144-8420 1742-3406 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_14720179 |
| source | MEDLINE; Oxford University Press Journals All Titles (1996-Current) |
| subjects | Absorption Algorithms Body Burden Computer Simulation Humans Linear Energy Transfer Neutron Capture Therapy - methods Neutrons - therapeutic use Radiation Dosage Radiation Protection - methods Radiometry - instrumentation Radiometry - methods Relative Biological Effectiveness Reproducibility of Results Risk Assessment - methods Risk Factors Scattering, Radiation Sensitivity and Specificity Spectrum Analysis - methods |
| title | Self-shielding effects in neutron spectra measurements for neutron capture therapy by means of activation foils |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-06T05%3A57%3A26IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Self-shielding%20effects%20in%20neutron%20spectra%20measurements%20for%20neutron%20capture%20therapy%20by%20means%20of%20activation%20foils&rft.jtitle=Radiation%20protection%20dosimetry&rft.au=Pytel,%20Krzysztof&rft.date=2004-01-01&rft.volume=110&rft.issue=1-4&rft.spage=823&rft.epage=826&rft.pages=823-826&rft.issn=0144-8420&rft.eissn=1742-3406&rft_id=info:doi/10.1093/rpd/nch134&rft_dat=%3Cproquest_cross%3E14720179%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=14720179&rft_id=info:pmid/15353753&rfr_iscdi=true |