نتایج جستجو برای: surface dose

تعداد نتایج: 932650  

2018
Anil Sethi Bahman Emami William Small Tarita O. Thomas

Methods and materials: Dose measurements were performed for a low energy (50 kV) X-ray INTRABEAM source. For spherical, flat, surface, and needle applicators, the following dosimetric parameters were measured: depth-dose (DD) profiles, surface dose (Ds), output factors (OF), and target dose homogeneity (DH). Optical density versus exposure calibration films were employed to obtain 2-dimensional...

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ژورنال: سنجش و ایمنی پرتو 2019
Aliasgharzadeh, Akbar, Bagheri, Hamed, Farhood, Bagher, Ramezani-moghadam, Ahmad, Shekarchi, Babak,

This research aimed to measure the received photon and thermal neutron doses to contralateral breast (CB) surface in breast cancer radiation therapy for different field sizes in presence of dynamic and physical wedges. The photon and thermal neutron doses were measured by thermo uminescent dosimeter (TLDs) chips for 11 × 13, 11 × 17 and 11 × 21 cm2 field sizes in presence of physical and dynamic ...

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Journal: International Journal of Radiation Research 2006
D. Shahbazi-Gahrouei,

Background: There is not any report on the radiation doses received by patients in diagnostic radiology sections in hospitals under control of Chaharmahal and Bakhtiari Medical Sciences University, in the south west of Iran. Objectives: The aim of this study is measurement of entrance surface doses (ESD) for the most routine types of X-ray procedures in radiology centers as part of ongoing d...

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Journal: :Journal of Radiation and Nuclear Medicine 2020

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Journal: :Japanese Journal of Radiological Technology 1961

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Journal: :journal of biomedical physics and engineering 0
m t bahreini toosi m haghparast l darvish s taeb m afkhami ardekani n dehghani

background: ionizing radiation is present in all environment of the earth’s surface, beneath the earth and in the atmosphere. human beings are exposed to external radiation from their surroundings naturally and also to internal radiation from food, water and air they consume. then, it is important to measure and develop knowledge about radiation. objective: this study is designed to evaluate th...

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Journal: :Medical Physics 2020

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Journal: :Radiotherapy and Oncology 2018

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Journal: :International Journal of Radiation Oncology*Biology*Physics 2020

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Journal: :Science Advances 2020

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