The use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beam

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dc.contributor.advisorJones, Dan T Len_ZA
dc.contributor.advisorLangen, Katja Men_ZA
dc.contributor.authorBhengu, Khumbulani Johnen_ZA
dc.date.accessioned2014-07-28T11:05:09Z
dc.date.available2014-07-28T11:05:09Z
dc.date.issued2000en_ZA
dc.descriptionBibliography: leaves 72-77.
dc.description.abstractThermoluminescent detectors (TLD-700) have been investigated for absorbed dose measurements in a p(66)/Be neutron therapy beam at the National Accelerator Centre. Chips were selected based on their reproducibility and chip individual neutron calibration factors were derived. The dose non-linearity was determined in peak 5 and peak 6 and dose non-linearity corrections were performed. The sensitivity of TLD-700 chips with depth and off-axis distance was determined. In-vivo dose measurements were performed on seven patients (9 fields). In the entrance in-vivo dose measurements, a maximal deviation of 3.2 % was detected and a systematic difference of 1.7 % was observed. On the exit side, a maximal deviation of -7.3 % was detected and a systematic difference of -5.1 % was observed. The glow curve peak 6/5 ratio was investigated and found to correlate with the qualitative variations of the average LET in the neutron beam.en_ZA
dc.identifier.apacitationBhengu, K. J. (2000). <i>The use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beam</i>. (Thesis). University of Cape Town ,Faculty of Health Sciences ,Division of Medical Physics. Retrieved from http://hdl.handle.net/11427/2799en_ZA
dc.identifier.chicagocitationBhengu, Khumbulani John. <i>"The use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beam."</i> Thesis., University of Cape Town ,Faculty of Health Sciences ,Division of Medical Physics, 2000. http://hdl.handle.net/11427/2799en_ZA
dc.identifier.citationBhengu, K. 2000. The use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beam. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Bhengu, Khumbulani John AB - Thermoluminescent detectors (TLD-700) have been investigated for absorbed dose measurements in a p(66)/Be neutron therapy beam at the National Accelerator Centre. Chips were selected based on their reproducibility and chip individual neutron calibration factors were derived. The dose non-linearity was determined in peak 5 and peak 6 and dose non-linearity corrections were performed. The sensitivity of TLD-700 chips with depth and off-axis distance was determined. In-vivo dose measurements were performed on seven patients (9 fields). In the entrance in-vivo dose measurements, a maximal deviation of 3.2 % was detected and a systematic difference of 1.7 % was observed. On the exit side, a maximal deviation of -7.3 % was detected and a systematic difference of -5.1 % was observed. The glow curve peak 6/5 ratio was investigated and found to correlate with the qualitative variations of the average LET in the neutron beam. DA - 2000 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2000 T1 - The use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beam TI - The use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beam UR - http://hdl.handle.net/11427/2799 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/2799
dc.identifier.vancouvercitationBhengu KJ. The use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beam. [Thesis]. University of Cape Town ,Faculty of Health Sciences ,Division of Medical Physics, 2000 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/2799en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDivision of Medical Physicsen_ZA
dc.publisher.facultyFaculty of Health Sciencesen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherMedical Physicsen_ZA
dc.titleThe use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beamen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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