THERMAL AND FAST NEUTRON DOSE EQUIVALENT DISTRIBUTION MEASUREMENT OF 15-MV LINEAR ACCELERATOR USING A CR-39 NUCLEAR TRACK DETECTORS

Abstract The main purpose of this study is to measure the contribution of the thermal and fast neutron dose along the central axis of the 15 MV Elekta Precise linac in a tissue equivalent phantom. In order to achieve this purpose, different points were selected in three field sizes of 5 × 5 cm2, 10 ...

Full description

Saved in:
Bibliographic Details
Published in:Radiation protection dosimetry 2020-07, Vol.188 (4), p.503-507
Main Authors: Mohammadi, Sara, Behmadi, Marziyeh, Mohammadi, Aghil, Toossi, Mohammad Taghi Bahreyni
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c320t-3f0c745b04caa7ad36ee6bf949d12ebdfb517c58355332637396483a70d0cae3
cites cdi_FETCH-LOGICAL-c320t-3f0c745b04caa7ad36ee6bf949d12ebdfb517c58355332637396483a70d0cae3
container_end_page 507
container_issue 4
container_start_page 503
container_title Radiation protection dosimetry
container_volume 188
creator Mohammadi, Sara
Behmadi, Marziyeh
Mohammadi, Aghil
Toossi, Mohammad Taghi Bahreyni
description Abstract The main purpose of this study is to measure the contribution of the thermal and fast neutron dose along the central axis of the 15 MV Elekta Precise linac in a tissue equivalent phantom. In order to achieve this purpose, different points were selected in three field sizes of 5 × 5 cm2, 10 × 10 cm2 and 15 × 15 cm2. Fast and thermal neutrons were measured using CR-39 nuclear track detectors with and without thermal neutron converter of 10B, respectively. According to the results, the fast neutron dose equivalent was decreased as the depth increased (field size 5 × 5, 10 × 10 and 15 × 15 cm2 fall from 0.35 to 0.15, 0.5 to 0.3 and 0.5 to 0.3, respectively). Thermal dose equivalent was increased as the depth increased in the tissue equivalent phantom (field size 5 × 5, 10 × 10 and 15 × 15 cm2 rise from 0.1 to 0.4, 0.4 to 0.8 and 0.4 to 0.9, respectively). In conclusion, at depth
doi_str_mv 10.1093/rpd/ncaa001
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2352054131</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><oup_id>10.1093/rpd/ncaa001</oup_id><sourcerecordid>2352054131</sourcerecordid><originalsourceid>FETCH-LOGICAL-c320t-3f0c745b04caa7ad36ee6bf949d12ebdfb517c58355332637396483a70d0cae3</originalsourceid><addsrcrecordid>eNp90DtPwzAUBWALgWgpTOzIE0JCoX7GzWhSt41IE-E4XaM8HKmoL5J2YOaPk6qFkekO99PRvQeAe4xeMPLosNlVw02Z5wjhC9DHghGHMuRegj7CjDkjRlAP3LTtB0JEeJxdgx4liHBBRR98m5nScxlCGY3hRCYGRio1Oo7gOE4UVO9psJChigwcB4nRwWtqgm45VzJJtZofF_EEYu7MFzAMIiU1lL6vQqWliTVMkyCaQgl97VAPRqkfHoXR0n-DY2WU36HkFlzV-aq1d-c5AGaijD9zwnga-DJ0yu7evUNrVArGC8S6Z0VeUddat6g95lWY2KKqC45FyUeUc0qJSwX1XDaiuUAVKnNLB-DpFLtrtp8H2-6z9bIt7WqVb-z20GaEcoI4wxR39PlEy2bbto2ts12zXOfNV4ZRdiw960rPzqV3-uEcfCjWtvqzvy134PEEtofdv0k_x3V_ow</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2352054131</pqid></control><display><type>article</type><title>THERMAL AND FAST NEUTRON DOSE EQUIVALENT DISTRIBUTION MEASUREMENT OF 15-MV LINEAR ACCELERATOR USING A CR-39 NUCLEAR TRACK DETECTORS</title><source>Oxford Journals Online</source><creator>Mohammadi, Sara ; Behmadi, Marziyeh ; Mohammadi, Aghil ; Toossi, Mohammad Taghi Bahreyni</creator><creatorcontrib>Mohammadi, Sara ; Behmadi, Marziyeh ; Mohammadi, Aghil ; Toossi, Mohammad Taghi Bahreyni</creatorcontrib><description>Abstract The main purpose of this study is to measure the contribution of the thermal and fast neutron dose along the central axis of the 15 MV Elekta Precise linac in a tissue equivalent phantom. In order to achieve this purpose, different points were selected in three field sizes of 5 × 5 cm2, 10 × 10 cm2 and 15 × 15 cm2. Fast and thermal neutrons were measured using CR-39 nuclear track detectors with and without thermal neutron converter of 10B, respectively. According to the results, the fast neutron dose equivalent was decreased as the depth increased (field size 5 × 5, 10 × 10 and 15 × 15 cm2 fall from 0.35 to 0.15, 0.5 to 0.3 and 0.5 to 0.3, respectively). Thermal dose equivalent was increased as the depth increased in the tissue equivalent phantom (field size 5 × 5, 10 × 10 and 15 × 15 cm2 rise from 0.1 to 0.4, 0.4 to 0.8 and 0.4 to 0.9, respectively). In conclusion, at depth &lt;3 cm, most existing neutrons are fast and CR-39 films are sensitive to fast neutrons; therefore, they are more appropriate than thermoluminescent dosemeters in measuring neutron dose equivalent.</description><identifier>ISSN: 0144-8420</identifier><identifier>EISSN: 1742-3406</identifier><identifier>DOI: 10.1093/rpd/ncaa001</identifier><identifier>PMID: 32025737</identifier><language>eng</language><publisher>England: Oxford University Press</publisher><ispartof>Radiation protection dosimetry, 2020-07, Vol.188 (4), p.503-507</ispartof><rights>The Author(s) 2020. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com 2020</rights><rights>The Author(s) 2020. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c320t-3f0c745b04caa7ad36ee6bf949d12ebdfb517c58355332637396483a70d0cae3</citedby><cites>FETCH-LOGICAL-c320t-3f0c745b04caa7ad36ee6bf949d12ebdfb517c58355332637396483a70d0cae3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32025737$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mohammadi, Sara</creatorcontrib><creatorcontrib>Behmadi, Marziyeh</creatorcontrib><creatorcontrib>Mohammadi, Aghil</creatorcontrib><creatorcontrib>Toossi, Mohammad Taghi Bahreyni</creatorcontrib><title>THERMAL AND FAST NEUTRON DOSE EQUIVALENT DISTRIBUTION MEASUREMENT OF 15-MV LINEAR ACCELERATOR USING A CR-39 NUCLEAR TRACK DETECTORS</title><title>Radiation protection dosimetry</title><addtitle>Radiat Prot Dosimetry</addtitle><description>Abstract The main purpose of this study is to measure the contribution of the thermal and fast neutron dose along the central axis of the 15 MV Elekta Precise linac in a tissue equivalent phantom. In order to achieve this purpose, different points were selected in three field sizes of 5 × 5 cm2, 10 × 10 cm2 and 15 × 15 cm2. Fast and thermal neutrons were measured using CR-39 nuclear track detectors with and without thermal neutron converter of 10B, respectively. According to the results, the fast neutron dose equivalent was decreased as the depth increased (field size 5 × 5, 10 × 10 and 15 × 15 cm2 fall from 0.35 to 0.15, 0.5 to 0.3 and 0.5 to 0.3, respectively). Thermal dose equivalent was increased as the depth increased in the tissue equivalent phantom (field size 5 × 5, 10 × 10 and 15 × 15 cm2 rise from 0.1 to 0.4, 0.4 to 0.8 and 0.4 to 0.9, respectively). In conclusion, at depth &lt;3 cm, most existing neutrons are fast and CR-39 films are sensitive to fast neutrons; therefore, they are more appropriate than thermoluminescent dosemeters in measuring neutron dose equivalent.</description><issn>0144-8420</issn><issn>1742-3406</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp90DtPwzAUBWALgWgpTOzIE0JCoX7GzWhSt41IE-E4XaM8HKmoL5J2YOaPk6qFkekO99PRvQeAe4xeMPLosNlVw02Z5wjhC9DHghGHMuRegj7CjDkjRlAP3LTtB0JEeJxdgx4liHBBRR98m5nScxlCGY3hRCYGRio1Oo7gOE4UVO9psJChigwcB4nRwWtqgm45VzJJtZofF_EEYu7MFzAMIiU1lL6vQqWliTVMkyCaQgl97VAPRqkfHoXR0n-DY2WU36HkFlzV-aq1d-c5AGaijD9zwnga-DJ0yu7evUNrVArGC8S6Z0VeUddat6g95lWY2KKqC45FyUeUc0qJSwX1XDaiuUAVKnNLB-DpFLtrtp8H2-6z9bIt7WqVb-z20GaEcoI4wxR39PlEy2bbto2ts12zXOfNV4ZRdiw960rPzqV3-uEcfCjWtvqzvy134PEEtofdv0k_x3V_ow</recordid><startdate>20200702</startdate><enddate>20200702</enddate><creator>Mohammadi, Sara</creator><creator>Behmadi, Marziyeh</creator><creator>Mohammadi, Aghil</creator><creator>Toossi, Mohammad Taghi Bahreyni</creator><general>Oxford University Press</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20200702</creationdate><title>THERMAL AND FAST NEUTRON DOSE EQUIVALENT DISTRIBUTION MEASUREMENT OF 15-MV LINEAR ACCELERATOR USING A CR-39 NUCLEAR TRACK DETECTORS</title><author>Mohammadi, Sara ; Behmadi, Marziyeh ; Mohammadi, Aghil ; Toossi, Mohammad Taghi Bahreyni</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c320t-3f0c745b04caa7ad36ee6bf949d12ebdfb517c58355332637396483a70d0cae3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mohammadi, Sara</creatorcontrib><creatorcontrib>Behmadi, Marziyeh</creatorcontrib><creatorcontrib>Mohammadi, Aghil</creatorcontrib><creatorcontrib>Toossi, Mohammad Taghi Bahreyni</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Radiation protection dosimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mohammadi, Sara</au><au>Behmadi, Marziyeh</au><au>Mohammadi, Aghil</au><au>Toossi, Mohammad Taghi Bahreyni</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>THERMAL AND FAST NEUTRON DOSE EQUIVALENT DISTRIBUTION MEASUREMENT OF 15-MV LINEAR ACCELERATOR USING A CR-39 NUCLEAR TRACK DETECTORS</atitle><jtitle>Radiation protection dosimetry</jtitle><addtitle>Radiat Prot Dosimetry</addtitle><date>2020-07-02</date><risdate>2020</risdate><volume>188</volume><issue>4</issue><spage>503</spage><epage>507</epage><pages>503-507</pages><issn>0144-8420</issn><eissn>1742-3406</eissn><abstract>Abstract The main purpose of this study is to measure the contribution of the thermal and fast neutron dose along the central axis of the 15 MV Elekta Precise linac in a tissue equivalent phantom. In order to achieve this purpose, different points were selected in three field sizes of 5 × 5 cm2, 10 × 10 cm2 and 15 × 15 cm2. Fast and thermal neutrons were measured using CR-39 nuclear track detectors with and without thermal neutron converter of 10B, respectively. According to the results, the fast neutron dose equivalent was decreased as the depth increased (field size 5 × 5, 10 × 10 and 15 × 15 cm2 fall from 0.35 to 0.15, 0.5 to 0.3 and 0.5 to 0.3, respectively). Thermal dose equivalent was increased as the depth increased in the tissue equivalent phantom (field size 5 × 5, 10 × 10 and 15 × 15 cm2 rise from 0.1 to 0.4, 0.4 to 0.8 and 0.4 to 0.9, respectively). In conclusion, at depth &lt;3 cm, most existing neutrons are fast and CR-39 films are sensitive to fast neutrons; therefore, they are more appropriate than thermoluminescent dosemeters in measuring neutron dose equivalent.</abstract><cop>England</cop><pub>Oxford University Press</pub><pmid>32025737</pmid><doi>10.1093/rpd/ncaa001</doi><tpages>5</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0144-8420
ispartof Radiation protection dosimetry, 2020-07, Vol.188 (4), p.503-507
issn 0144-8420
1742-3406
language eng
recordid cdi_proquest_miscellaneous_2352054131
source Oxford Journals Online
title THERMAL AND FAST NEUTRON DOSE EQUIVALENT DISTRIBUTION MEASUREMENT OF 15-MV LINEAR ACCELERATOR USING A CR-39 NUCLEAR TRACK DETECTORS
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-17T23%3A18%3A41IST&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=THERMAL%20AND%20FAST%20NEUTRON%20DOSE%20EQUIVALENT%20DISTRIBUTION%20MEASUREMENT%20OF%2015-MV%20LINEAR%20ACCELERATOR%20USING%20A%20CR-39%20NUCLEAR%20TRACK%20DETECTORS&rft.jtitle=Radiation%20protection%20dosimetry&rft.au=Mohammadi,%20Sara&rft.date=2020-07-02&rft.volume=188&rft.issue=4&rft.spage=503&rft.epage=507&rft.pages=503-507&rft.issn=0144-8420&rft.eissn=1742-3406&rft_id=info:doi/10.1093/rpd/ncaa001&rft_dat=%3Cproquest_cross%3E2352054131%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c320t-3f0c745b04caa7ad36ee6bf949d12ebdfb517c58355332637396483a70d0cae3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2352054131&rft_id=info:pmid/32025737&rft_oup_id=10.1093/rpd/ncaa001&rfr_iscdi=true