نتایج جستجو برای: reduction dose

تعداد نتایج: 774229  

Journal: :Japanese Journal of Radiological Technology 1996

Journal: :Japanese Journal of Radiological Technology 1992

Journal: :Biology of Sex Differences 2014

Journal: :Current Radiology Reports 2013

Fatemeh Shahraki Jalal Ordoni Vida Sargazi Zohre Bidari

Introduction: Computed tomography (CT) consists of 11% of all imaging methods, but accounts for approximately 67% of radiation exposure due to diagnostic cases. More than one-third of all CT scans are done in the head and neck area. The thyroid gland is irradiated during CT head and neck. According to studies, this gland has the highest levels of radiation-induced cancer, and i...

ژورنال: سنجش و ایمنی پرتو 2015

In Radiation processing of products by high energy electrons, scattered electrons reduce at the edges of the product and the absorbed dose is low at this regions. Dose reduction in edges, affects some system parameters such as dose uniformity ratio, Energy utilization efficiency and mass throughput.In this paper,the 3-D dose distribution in the sample product was determined by MCNP computer cod...

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