<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2022000200801</article-id>
<article-id pub-id-type="doi">10.31349/revmexfis.68.021101</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Dosis equivalente ambiental H*(10) por neutrones producidos en un Varian Clinac 2300 mediante detectores tipo CR-39]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Balza]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrutia Barreto]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Innova Scientific SAC Departamento de Investigación ]]></institution>
<addr-line><![CDATA[Lima ]]></addr-line>
<country>Perú</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>68</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2022000200801&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2022000200801&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2022000200801&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Mediante detectores de trazas tipo CR-39 se determinó la dosis equivalente ambiental H*(10) por neutrones rápidos y térmicos en un´ acelerador Varian Clinac 2300 que opera en el rango de 6-18 MV. Mediciones preliminares fueron efectuadas ante una fuente moderada de neutrones 252Cf para obtener la respuesta del detector según el rango de energía. Se obtuvieron valores de tasa de densidad de trazas, flujo y dosis equivalente ambiental H*(10) por neutrones rápidos y térmicos en la mesa de tratamiento del recinto. Se determinó que la dosis equivalente ambiental H*(10) por unidad de dosis Gy en el isocentro es de 162 ± 11 µSv/Gy a una distancia de 13 cm del isocentro. Se presentan igualmente valores de flujo y tasa de densidad de trazas en el cabezal del acelerador.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Using CR-39 nuclear track detectors, ambient dose equivalent H*(10) by fast and thermal neutrons in a Varian Clinac 2300 medical accelerator operating in the range of 6-18 MV was determined. Preliminary measurements to obtain the detector response in a moderated 252Cf neutron source were made according to the neutron energy. Track density rate, fluence rate and ambient dose equivalent H*(10) values were obtained for fast and thermal neutrons in the couch. Ambient dose equivalent H*(10) per unit Gy dose at the isocenter was 162 ± 11 µSv/Gy at a distance of 13 cm from the isocenter. Track density rate and fluence rate in the linac head are also presented.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Dosis equivalente ambiental por neutrones]]></kwd>
<kwd lng="es"><![CDATA[CR-39]]></kwd>
<kwd lng="es"><![CDATA[densidad de trazas]]></kwd>
<kwd lng="es"><![CDATA[fluencia]]></kwd>
<kwd lng="en"><![CDATA[Ambient dose equivalent]]></kwd>
<kwd lng="en"><![CDATA[CR-39]]></kwd>
<kwd lng="en"><![CDATA[track density]]></kwd>
<kwd lng="en"><![CDATA[neutron fluence]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Deng]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[Y.-S.]]></given-names>
</name>
<name>
<surname><![CDATA[Tu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Photoneutron radiation field of ducts in barrier of 15 MV medical electron accelerators]]></article-title>
<source><![CDATA[Radiat. Phys. Chem.]]></source>
<year>2017</year>
<volume>140</volume>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Al-Othmany]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Abdul-Majid]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Kadi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fast Neutron Dose Mapping in a linac Radiotheray Facility]]></article-title>
<source><![CDATA[Tenth Radiation Physics and Protection Conference]]></source>
<year>2010</year>
<volume>10</volume>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fast neutron leakage in 18 MeV medical electron accelerator]]></article-title>
<source><![CDATA[Radiat. Meas.]]></source>
<year>1999</year>
<volume>31</volume>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Karimi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Essential considerations for accurate evaluation of photoneutron contamination in Radiotherapy]]></article-title>
<source><![CDATA[Appl. Radiat. Isotopes.]]></source>
<year>2019</year>
<volume>145</volume>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nath]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutrons from high-energy x-ray medical accelerators: An estimate of risk to the radiotherapy patient]]></article-title>
<source><![CDATA[Med. Phys.]]></source>
<year>1984</year>
<volume>11</volume>
</nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Bednarz]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Paganetti]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review of dosimetry studies on external-beam radiation treatment with respect to second cancer induction]]></article-title>
<source><![CDATA[Phys. Med. Biol.]]></source>
<year>2008</year>
<volume>53</volume>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Soto-Bernal]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron production during the interaction of monoenergetic electrons with a Tungsten foil in the radiotherapeutic energy range]]></article-title>
<source><![CDATA[Nucl. Instrum. Methods Phys. Res. A.]]></source>
<year>2017</year>
<volume>868</volume>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Soto-Bernal]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron production in the interaction of 12 and 18 MeV electrons with a scattering foil inside a simple LINAC head]]></article-title>
<source><![CDATA[Appl. Radiat. Isotopes.]]></source>
<year>2018</year>
<volume>139</volume>
</nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tosi]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron measurements around medical electron accelerators by active and passive detection techniques]]></article-title>
<source><![CDATA[Med. Phys.]]></source>
<year>1991</year>
<volume>18</volume>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nath]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Neutron Measurements around High Energy XRay Radiotherapy Machines, AAPM Report 19]]></source>
<year>1986</year>
<edition>1</edition>
<page-range>7-12</page-range><publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[AAPM]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dawn]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of in-field neutron production for medical LINACs with and without flattening filter for various beam parameters - Experiment and Monte Carlo simulation]]></article-title>
<source><![CDATA[Radiat. Meas.]]></source>
<year>2018</year>
<volume>118</volume>
</nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barquero]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Thermoluminescence measurements of neutron dose around a medical linac]]></article-title>
<source><![CDATA[Radiat. Prot. Dosim.]]></source>
<year>2002</year>
<volume>101</volume>
</nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barquero]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron spectra and dosimetric features around an 18 mv linac accelerator]]></article-title>
<source><![CDATA[Health Phys.]]></source>
<year>2005</year>
<volume>88</volume>
</nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shagoli]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron dose evaluation of Elekta Linac at two energies (10 and 18 MV) by MCNP code and comparison with experimental measurements]]></article-title>
<source><![CDATA[J. Adv. Phys.]]></source>
<year>2014</year>
<volume>6</volume>
</nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bezak]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Takam]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Marcu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Peripheral Photon and Neutron Doses from Prostate Cancer External Beam Irradiation]]></article-title>
<source><![CDATA[Radiat. Prot. Dosim.]]></source>
<year>2015</year>
<volume>167</volume>
</nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fujibuchi]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Measurement of the secondary neutron dose distribution from the LET spectrum of recoils using the CR-39 plastic nuclear track detector in 10 MV X-ray medical radiation fields]]></article-title>
<source><![CDATA[Nucl. Instrum. Methods Phys. Res. B.]]></source>
<year>2015</year>
<volume>349</volume>
</nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mohamedy]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment the Photo-neutron Contamination of IMRT and 3D-Conformal Techniques Using Thermoluminescent Dosimeter (TLD)]]></article-title>
<source><![CDATA[J. Pharm. Res. Int.]]></source>
<year>2018</year>
<volume>25</volume>
</nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vukovic]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A neutron track etch detector for electron linear accelerators in radiotherapy]]></article-title>
<source><![CDATA[Radiol. Oncol.]]></source>
<year>2010</year>
<volume>44</volume>
</nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Poje]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Neutron Dose Equivalent Around High Energy Medical Electron Linear Accelerators]]></article-title>
<source><![CDATA[Nucl. Technol. Radiat. Prot.]]></source>
<year>2014</year>
<volume>29</volume>
</nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McCall]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Jenkins]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Shore]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transport of Accelerator Produced Neutrons in a Concrete Room]]></article-title>
<source><![CDATA[IEEE Trans. Nucl. Sci.]]></source>
<year>1979</year>
<volume>26</volume>
</nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Followil]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron source strength measurements for Varian, Siemens, Elekta, and General Electric linear accelerators]]></article-title>
<source><![CDATA[J. Appl. Clin. Med. Phys.]]></source>
<year>2003</year>
<volume>4</volume>
</nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nikezic]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Formation and growth of tracks in nuclear track materials]]></article-title>
<source><![CDATA[Mat. Sci. Eng. R.]]></source>
<year>2004</year>
<volume>46</volume>
</nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yip]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chemical etching characteristics for cellulose nitrate]]></article-title>
<source><![CDATA[Mater. Chem. Phys.]]></source>
<year>2006</year>
<volume>95</volume>
</nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rana]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[CR-39 nuclear track detector: An experimental guide]]></article-title>
<source><![CDATA[Nucl. Instr. Meth. Phys. Res. A.]]></source>
<year>2018</year>
<volume>910</volume>
</nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tommasino]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutrons, radon, nanoparticles, and nanoholes: Everything comes to a full circle with track detectors]]></article-title>
<source><![CDATA[Radiat. Meas.]]></source>
<year>2013</year>
<volume>50</volume>
</nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[d&#8217;Errico]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Track size distributions in CR-39 neutron dosimeters treated with carbon dioxide]]></article-title>
<source><![CDATA[Radiat. Meas.]]></source>
<year>2017</year>
<volume>106</volume>
</nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Paul]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Measurement of thick target neutron yield from the reaction (p + 181Ta) with projectiles in the range of 6 &#8722; 12 MeV]]></article-title>
<source><![CDATA[Nucl. Instr. Meth. Phys. Res. A.]]></source>
<year>2018</year>
<volume>880</volume>
</nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Salim]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Ebrahiem]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Measurement of Radon concentration in College of Education, Ibn Al- Haitham buildings using Rad-7 and CR-39 detector]]></article-title>
<source><![CDATA[Energy Procedia.]]></source>
<year>2019</year>
<volume>157</volume>
</nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rana]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Annealing of fission fragment tracks in CR-39 nuclear track detector - Phenomenological model]]></article-title>
<source><![CDATA[Nucl. Instr. Meth. Phys. Res. A.]]></source>
<year>2019</year>
<volume>940</volume>
</nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[L&#8217;Annunziata]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Handbook of Radioactivity Analysis]]></source>
<year>2003</year>
<edition>2</edition>
<page-range>198-9</page-range><publisher-loc><![CDATA[San Diego ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sajo-Bohus]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Greaves]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Pálfalvi]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Boron Studies in Interdisciplinary Fields Employing Nuclear Track Detectors (NTDs)]]></article-title>
<source><![CDATA[Radioisotopes - Applications in Bio-Medical Science]]></source>
<year>2011</year>
<edition>1</edition>
<publisher-loc><![CDATA[London ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="book">
<collab>International Commission Of Radiological Protection</collab>
<source><![CDATA[Conversion Coefficients for use in Radiological Protection against External Radiation Publication 74]]></source>
<year>1993</year>
<edition>1</edition>
<page-range>349-50</page-range><publisher-loc><![CDATA[New Jersey ]]></publisher-loc>
<publisher-name><![CDATA[Pergamon]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B33">
<label>33</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barrera]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Thermal and epithermal neutron fluence rate gradient measurements by PADC detectors in LINAC radiotherapy treatments-field]]></article-title>
<source><![CDATA[AIP Conf. Proc.]]></source>
<year>2015</year>
<volume>1671</volume>
</nlm-citation>
</ref>
<ref id="B34">
<label>34</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alvarado]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron flux characterization using LR-115 NTD and binary glass metal as converter]]></article-title>
<source><![CDATA[Rev. Mex. Fís. S.]]></source>
<year>2010</year>
<volume>56</volume>
</nlm-citation>
</ref>
<ref id="B35">
<label>35</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Greaves]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cryolite-Alumina Solutions Analysis by Neutron Activation]]></article-title>
<source><![CDATA[AIP Conf. Proc.]]></source>
<year>2007</year>
<volume>884</volume>
</nlm-citation>
</ref>
<ref id="B36">
<label>36</label><nlm-citation citation-type="">
<collab>Aea Technology</collab>
<source><![CDATA[Technical records Cf-252 source]]></source>
<year>2000</year>
<edition>1</edition>
<page-range>49-50</page-range><publisher-loc><![CDATA[Vienna ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B37">
<label>37</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sajo-Bohus]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Graphite moderated 252Cf source]]></article-title>
<source><![CDATA[Appl. Radiat. Isotopes.]]></source>
<year>2015</year>
<volume>100</volume>
</nlm-citation>
</ref>
<ref id="B38">
<label>38</label><nlm-citation citation-type="book">
<collab>International Atomic Energy Agency</collab>
<source><![CDATA[Compendium of Neutron Spectra and Detector Responses for Radiation Protection Purposes]]></source>
<year>2001</year>
<edition>1</edition>
<page-range>85-6</page-range><publisher-loc><![CDATA[Vienna ]]></publisher-loc>
<publisher-name><![CDATA[IAEA]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B39">
<label>39</label><nlm-citation citation-type="book">
<collab>National Council On Radiation Protection And Measurements</collab>
<source><![CDATA[Neutron Contamination from Medical Electron Accelerators Report 79]]></source>
<year>1984</year>
<edition>1</edition>
<page-range>36-9</page-range><publisher-loc><![CDATA[Maryland ]]></publisher-loc>
<publisher-name><![CDATA[NCRP]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B40">
<label>40</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Szydlowski]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Application of nuclear track detectors as sensors for photoneutrons generated by medical accelerators]]></article-title>
<source><![CDATA[Radiat. Meas.]]></source>
<year>2013</year>
<volume>50</volume>
</nlm-citation>
</ref>
<ref id="B41">
<label>41</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sajo-Bohus]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Vega-Carrillo]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Virk]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[SSNTD Technique in Photo-Neutron Applications]]></article-title>
<source><![CDATA[Solid State Phenom.]]></source>
<year>2015</year>
<volume>239</volume>
</nlm-citation>
</ref>
<ref id="B42">
<label>42</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vilela]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Optimization of CR-39 for fast neutron dosimetry applications]]></article-title>
<source><![CDATA[Radiat. Meas.]]></source>
<year>1999</year>
<volume>31</volume>
</nlm-citation>
</ref>
<ref id="B43">
<label>43</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mohammadi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[New aspect determination of photoneutron contamination in 18 MV medical linear accelerator]]></article-title>
<source><![CDATA[Radiat. Meas.]]></source>
<year>2016</year>
<volume>95</volume>
</nlm-citation>
</ref>
<ref id="B44">
<label>44</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vega-Carrillo]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron and photon spectra in LINACs]]></article-title>
<source><![CDATA[Appl. Radiat. Isotopes.]]></source>
<year>2012</year>
<volume>71</volume>
</nlm-citation>
</ref>
<ref id="B45">
<label>45</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martínez-Ovalle]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron Dose Equivalent and Neutron Spectra in Tissue for Clinical Linacs Operating at 15, 18 and 20 MV]]></article-title>
<source><![CDATA[Radiat. Prot. Dosim.]]></source>
<year>2011</year>
<volume>147</volume>
</nlm-citation>
</ref>
<ref id="B46">
<label>46</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alem-Bezoubiri]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Monte Carlo estimation of photoneutrons spectra and dose equivalent around an 18 MV medical linear accelerator]]></article-title>
<source><![CDATA[Radiat. Phys. Chem.]]></source>
<year>2014</year>
<volume>97</volume>
</nlm-citation>
</ref>
<ref id="B47">
<label>47</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Facure]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A study of neutron spectra from medical linear accelerators]]></article-title>
<source><![CDATA[Appl. Radiat. Isotopes.]]></source>
<year>2005</year>
<volume>62</volume>
</nlm-citation>
</ref>
<ref id="B48">
<label>48</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Calculation of Photoneutrons from Varian Clinac Accelerators and Their Transmissions in Materials. No. SLAC-PUB-7404. Stanford Linear Accelerator Center (SLAC)]]></article-title>
<source><![CDATA[International Conference on Radiation Dosimetry and Safety]]></source>
<year>2006</year>
</nlm-citation>
</ref>
<ref id="B49">
<label>49</label><nlm-citation citation-type="book">
<collab>International Commission of Radiological Protection</collab>
<source><![CDATA[Data for Use in Protection against External Radiation]]></source>
<year>1987</year>
<edition>1</edition>
<page-range>241-2</page-range><publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[ICRP]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B50">
<label>50</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fowler]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Track Recording Properties of the Plastic CR-39 for Non-Relativistic Ions in the Charge Range 6 &#8805; Z &#8805; 29]]></article-title>
<source><![CDATA[Proceedings of the 10th International Conference]]></source>
<year>1980</year>
</nlm-citation>
</ref>
<ref id="B51">
<label>51</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[El-Badry]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neutron response study using poly allyl diglycol carbonate]]></article-title>
<source><![CDATA[Pramana - J. Phys.]]></source>
<year>2007</year>
<volume>69</volume>
</nlm-citation>
</ref>
<ref id="B52">
<label>52</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Munter]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[NIST, Center for Neutron Research, Scattering Length Density Calculator]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B53">
<label>53</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Domingo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Measurements in quasi-monoenergetic neutron beams at the EC-IRMM Van der Graaf accelerator for calibration of the UAB PADC based neutron dosimeter]]></article-title>
<source><![CDATA[Radiat. Meas.]]></source>
<year>2009</year>
<volume>44</volume>
</nlm-citation>
</ref>
<ref id="B54">
<label>54</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Turek]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Bednar]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Piesch]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Determination of the Neutron Angular Response Using a Single Etched Track Detector]]></article-title>
<source><![CDATA[Radiat. Prot. Dosim.]]></source>
<year>1995</year>
<volume>59</volume>
</nlm-citation>
</ref>
<ref id="B55">
<label>55</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[El-khatib]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The development of neutron dosimeter using CR-39 detector]]></article-title>
<source><![CDATA[Radiat. Eff. Defects Solids.]]></source>
<year>1994</year>
<volume>128</volume>
</nlm-citation>
</ref>
<ref id="B56">
<label>56</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vanhavere]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Huyskens]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Struelens]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Peripheral neutron and gamma doses in radiotherapy with an 18 MV linear accelerator]]></article-title>
<source><![CDATA[Radiat. Prot. Dosim.]]></source>
<year>2014</year>
<volume>110</volume>
</nlm-citation>
</ref>
<ref id="B57">
<label>57</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ongaro]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analysis of photoneutron spectra produced in medical accelerators]]></article-title>
<source><![CDATA[Phys. Med. Biol.]]></source>
<year>2000</year>
<volume>45</volume>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
