نتایج جستجو برای: anthropomorphic head phantom

تعداد نتایج: 185703  

2013
GS Sim JHD Wong KH Ng

Radiochromic and radiographic films are widely used for radiation dosimetry due to the advantage of high spatial resolution and two-dimensional dose measurement. Different types of scanners, including various models of flatbed scanners, have been used as part of the dosimetry readout procedure. This paper focuses on the characterization of the EBT2 film response in combination with a Microtek S...

Journal: :Physics in medicine and biology 2014
Isabelle Dietlicher Margherita Casiraghi Carmen Ares Alessandra Bolsi Damien C Weber Antony J Lomax Francesca Albertini

To investigate the effect of metal implants in proton radiotherapy, dose distributions of different, clinically relevant treatment plans have been measured in an anthropomorphic phantom and compared to treatment planning predictions. The anthropomorphic phantom, which is sliced into four segments in the cranio-caudal direction, is composed of tissue equivalent materials and contains a titanium ...

Journal: :Nucleation and Atmospheric Aerosols 2021

Total body irradiation (TBI) is a well-established component of several conditioning regimens required before bone marrow or hematopoietic stem cell transplantation. In this work, we validate the imparted dose in TBI technique using VMAT Médica Sur. We used an anthropomorphic phantom ATOM 702-D, CIRS (Norfolk, Virginia), add upper extremities homemade material and scanned it CT scanner GE 580RT...

Journal: :iranian journal of radiation research 0
h.r. baghani radiation medicine department, nuclear engineering faculty, shahid beheshti university, tehran, iran s.m.r. aghamiri radiation medicine department, nuclear engineering faculty, shahid beheshti university, tehran, iran h. gharaati radiotherapy physics department, cancer institute of tehran, tehran, iran s.r. mahdavi medical physics department, medical faculty, iran university of medical science, tehran, iran s.m. hosseini daghigh radiation medicine department, nuclear engineering faculty, shahid beheshti university, tehran, iran

background: craniospinal radiotherapy faces technical challenges which are due to the sensitivity of the location in which the gross tumor is, and to organs at risk around planning target volume. using modern treatment planning systems causes a reduction in the complexities of the treatment techniques. the most effective method to assess the dosimetric accuracy and the validity of the software ...

2015
Mitchell Sommerville Yannick Poirier Mauro Tambasco

The purpose of this study was to show that the nominal peak tube voltage potential (kVp) and measured half-value layer (HVL) can be used to generate energy spectra and fluence profiles for characterizing a computed tomography (CT) X-ray source, and to validate the source model and an in-house kV X-ray dose computation algorithm (kVDoseCalc) for computing machine- and patient-specific CT dose. S...

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