PENGARUH VARIASI AIR GAP TERHADAP DOSIS SERAP PENYINARAN BERKAS ELEKTRON PADA PESAWAT LINAC SIEMENS / PRIMUS M CLASS 5633

Main Authors: Saraswati, Galih Puspa; Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang, Hidayanto, Eko; Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang, Setiawati, Evi; Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang
Format: Article info application/pdf eJournal
Bahasa: eng
Terbitan: Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro , 2014
Online Access: http://ejournal-s1.undip.ac.id/index.php/bfd/article/view/5937
http://ejournal-s1.undip.ac.id/index.php/bfd/article/view/5937/5726
ctrlnum article-5937
fullrecord <?xml version="1.0"?> <dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><title lang="en-US">PENGARUH VARIASI AIR GAP TERHADAP DOSIS SERAP PENYINARAN BERKAS ELEKTRON PADA PESAWAT LINAC SIEMENS / PRIMUS M CLASS 5633</title><creator>Saraswati, Galih Puspa; Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang</creator><creator>Hidayanto, Eko; Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang</creator><creator>Setiawati, Evi; Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang</creator><subject lang="en-US"/><description lang="en-US">The effect of the variation of the air gap absorbed dose in electron beam irradiation has conducted. In the particular case of electron beam irradiation often can not use the SSD 100 cm due to the influence of the use of the applicator so that the patient's body should be granted an extension of the SSD or air gap at the irradiation. In this study the calculation of the effective SSD, absorbed dose, the air gap correction factor and verification of absorbed dose was performed using the inverse square law and the correction of the output electrons. The method utilized an inverse square law load value of each electron beam irradiation to determine the effective SSD, while the determination of absorbed dose and the air gap correction factor correction using electron output. The results of the calculation states that the effective SSD of 82,2 cm &#x2013; 109 cm wide field size and is proportional to the electron energy. Absorbed dose and the air gap correction factor proportional to the field size and inversely proportional to the variation of the air gap while the value of the absorbed dose itself is varied between 64,80 cGy to 108,0 cGy as well as the value of the correction factor of the air gap is between 0,869 &#x2013; 1,000. Correction dose verification of absorbed dose value is still below the value specified tolerances AAPM TG40 is equal to 99,10% - 103,0%. Variations of growing air gap causes the smaller absorbed dose.Keywords: air gap, effective SSD, air gap correction factor, dose normalization&#xA0;</description><publisher lang="en-US">Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro</publisher><contributor lang="en-US"/><date>2014-07-01</date><type>Journal:Article</type><type>Other:info:eu-repo/semantics/publishedVersion</type><type>Journal:Article</type><type>File:application/pdf</type><identifier>http://ejournal-s1.undip.ac.id/index.php/bfd/article/view/5937</identifier><source lang="en-US">YOUNGSTER PHYSICS JOURNAL; Vol 3, No 3 (2014): Youngster Physics Journal Juli 2014; 217-222</source><source>2302-7371</source><language>eng</language><relation>http://ejournal-s1.undip.ac.id/index.php/bfd/article/view/5937/5726</relation><recordID>article-5937</recordID></dc>
language eng
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author Saraswati, Galih Puspa; Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang
Hidayanto, Eko; Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang
Setiawati, Evi; Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang
title PENGARUH VARIASI AIR GAP TERHADAP DOSIS SERAP PENYINARAN BERKAS ELEKTRON PADA PESAWAT LINAC SIEMENS / PRIMUS M CLASS 5633
publisher Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro
publishDate 2014
url http://ejournal-s1.undip.ac.id/index.php/bfd/article/view/5937
http://ejournal-s1.undip.ac.id/index.php/bfd/article/view/5937/5726
contents The effect of the variation of the air gap absorbed dose in electron beam irradiation has conducted. In the particular case of electron beam irradiation often can not use the SSD 100 cm due to the influence of the use of the applicator so that the patient's body should be granted an extension of the SSD or air gap at the irradiation. In this study the calculation of the effective SSD, absorbed dose, the air gap correction factor and verification of absorbed dose was performed using the inverse square law and the correction of the output electrons. The method utilized an inverse square law load value of each electron beam irradiation to determine the effective SSD, while the determination of absorbed dose and the air gap correction factor correction using electron output. The results of the calculation states that the effective SSD of 82,2 cm – 109 cm wide field size and is proportional to the electron energy. Absorbed dose and the air gap correction factor proportional to the field size and inversely proportional to the variation of the air gap while the value of the absorbed dose itself is varied between 64,80 cGy to 108,0 cGy as well as the value of the correction factor of the air gap is between 0,869 – 1,000. Correction dose verification of absorbed dose value is still below the value specified tolerances AAPM TG40 is equal to 99,10% - 103,0%. Variations of growing air gap causes the smaller absorbed dose.Keywords: air gap, effective SSD, air gap correction factor, dose normalization
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institution Universitas Diponegoro
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subject_area Physics/Fisika
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repoId IOS2700
first_indexed 2016-09-15T17:58:49Z
last_indexed 2016-09-15T17:58:49Z
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