نتایج جستجو برای: Application Radiotherapy Dosimetry

تعداد نتایج: 830352  

A Shabestani Monfared, F Niksirat Gh Ataei, K Ebrahimnejad Gorji S Cham

Accuracy of the radiotherapy requires some routine quality control and dosimetry calculations, which would be done by radiotherapy physicists. Due to the increasing use of computers and simulation software in medical science, as well as trends indicating its continued growth, this study aims to develop a new smart-phone application to perform common radiotherapy-related calculations. Computatio...

Introduction: Successful radiotherapy requires the precise application of a radiation dose to cancerous tissue, which can be achieved by the design of proper treatment methods by radiotherapy physicists. Tasks performed by radiotherapy physicists include verifying the accuracy of dose calculations, correct treatment planning and the proper functioning of accelerators. They are...

Journal: :Journal of Radiotherapy in Practice 2023

Abstract Introduction: This is the second of two papers giving an overview use Monte-Carlo techniques for radiotherapy applications. Methods: The first paper gave introduction and introduced some codes that are available to user wishing model different aspects treatment. It also aims serve as a useful companion curated collection on have been published in this journal. Results Conclusions: focu...

2003
G. Ibbott

Several national and international organizations have developed various types and levels of external audits for radiotherapy dosimetry, either based on on-site review visits or using mailed dosimetry systems. Three major TLD (thermoluminescent dosimetry) networks make available postal dose audits to a large number of radiotherapy centres on a regular basis. These are the IAEA/WHO TLD postal dos...

Journal: :Revista panamericana de salud publica = Pan American journal of public health 2006
Joanna Izewska Stanislav Vatnitsky Kenneth R Shortt

Since 1969 the International Atomic Energy Agency and the World Health Organization (along with the Pan American Health Organization, working with countries in Latin America and the Caribbean) have operated postal dosimetry audits based on thermoluminescent dosimetry (TLD) for radiotherapy centers. The purpose of these audits is to provide an independent dosimetry check of radiation beams used ...

Journal: :iranian journal of medical physics 0
alireza vejdani-noghreiyan physics department, faculty of sciences, university of neyshabur, neyshabur, iran, atiyeh ebrahimi-khankook physics department, faculty of sciences, university of neyshabur, neyshabur, iran,

introduction accurate estimation of the absorbed dose in radiosensitive organs, located away from the target volume during radiotherapy, is one of the main reasons for the development of reference phantoms. the international commission on radiological protection (icrp) reference phantoms can provide a more realistic view of the human anatomy in comparison with the previously used mathematical p...

آقامیری, سید محمود رضا, باغانی, حمیدرضا, حیدرلو, نعمت‌الله, مهدوی, سید ربیع,

Intraoperative electron radiotherapy is one of the radiotherapy methods that delivers a high single fraction of radiation dose to the patient in one session during the surgery. Beam shaper applicator is one of the applicators that is recently employed with this radiotherapy method. This applicator has a considerable application in treatment of large tumors. In this study, the dosimetric charact...

Journal: :iranian journal of otorhinolaryngology 0
mir mohammad jalali department of otorhinolaryngology, nose and sinus diseases research center, guilan university of medical sciences, rasht, iran. hooshang gerami department of otorhinolaryngology, nose and sinus diseases research center, guilan university of medical sciences, rasht, iran. abbas rahimi department of radiotherapy, razi hospital, guilan university of medical sciences, guilan, iran. manizheh jafari department of otorhinolaryngology, nose and sinus diseases research center, guilan university of medical sciences, rasht, iran.

introduction: radiotherapy is a common treatment modality for patients with head and neck malignancies. as the nose lies within the field of radiotherapy of the head and neck, the olfactory fibers and olfactory receptors may be affected by radiation. the aim of this study was to evaluate changes in olfactory threshold in patients with head and neck malignancies who have received radiation to th...

Journal: :Japanese Journal of Radiological Technology 1995

2012
Juan Azorín Nieto Juan Azorin Nieto

Radiation dosimetry is fundamental in Medical Physics, involving patients and phantom dosimetry. In both cases thennoluminescence dosimetry (TLD) is the most appropriate technique for measuring the absorbed dose. In this paper thennoluminescence phenomenon as well as the use of TLD in radiodiagnosis and radiotherapy for in vivo or in phantom measurements is discussed. Some results of measuremen...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید