نتایج جستجو برای: staff dose

تعداد نتایج: 379458  

2010
Edgar Bailey

A hand-held, battery-powered dental intraoral x-ray system (60 kV, constant potential output) was compared to a conventional, wall-mounted intraoral x-ray system (70 kVp, self-rectified output) in terms of image quality, and patient and staff radiation doses. The image quality comparison included quantitative measurements of image sharpness (resolution) and contrast. Patient doses were compared...

Journal: :iranian journal of radiation research 0
s. sathiyan department of radiation physics, kmio, bangalore, india m. ravikumar department of radiation physics, kmio, bangalore, india r. ravichandran national oncology center, royal hospital, muscat, oman

background: to evaluate the risk involved, there is need to know the quantum of personnel exposures in whole service. dose reports from an oncology centre over 7 block periods, 5 years each from 1979 till 2013 are analyzed. materials and methods: personnel monitoring (pm) reports till 1990s with film badges and later thermoluminescent (tl) badges (caso4.dy) were evaluated. 35 years total servic...

2017
S. Zargan P. Ghafarian A. Shabestani Monfared A.A. Sharafi M. Bakhshayeshkaram M.R. Ay

BACKGROUND PET/CT imaging using [18F]-FDG is utilized in clinical oncology for tumor detecting, staging and responding to therapy procedures. Essential consideration must be taken for radiation staff due to high gamma radiation in PET/CT and cyclotron center. The aim of this study was to assess the staff exposure regarding whole body and organ dose and to evaluate environment dose in PET/CT and...

Journal: :Medycyna pracy 2013
Grazyna Krajewska Krzysztof A Pachocki

BACKGROUND Due to its use of ionising radiation, the field of nuclear medicine is a unique and significant part of medical diagnostics and patient treatment. The aim of this study was to assess the internal exposure of nuclear medicine employees to radioiodine 131I and technetium 99mTc as well as to assess the external exposure doses. MATERIAL AND METHODS The radioiodine 131I and technetium 9...

2013
Grażyna Krajewska Krzysztof A. Pachocki

Background: Due to its use of ionising radiation, the field of nuclear medicine is a unique and significant part of medical diagnostics and patient treatment. The aim of this study was to assess the internal exposure of nuclear medicine employees to radioiodine 131I and technetium 99mTc as well as to assess the external exposure doses. Material and Methods: The radioiodine 131I and technetiu...

احسانی, سینا , خرمی مقدم, علیرضا , فلاح محمدی, غلامرضا , مردانشاهی, علیرضا ,

Background and purpose: Estimation of the risks of radiation would be possible by identifying the dose received. Introducing the dose level from diagnostic procedures can be effective in reducing the patient dose, improving the quality of treatment, and increasing the safety of patients and staff. This study evaluated patient entrance surface dose (ESD), effective dose, and cumulative dose from...

2013
Matthew T. Studenski

The purpose of this study was to determine the number of weekly acquisitions permissible using a mobile PET/SPECT scanner for myocardial perfusion/viability imaging in an intensive care unit (ICU) based on the effective dose to patients and staff. The effective dose to other patients and staff in an ICU was calculated following recommendations from the American Association of Physicists in Medi...

2004

The U.S. Nuclear Regulatory Commission (NRC) promulgated its regulations on the “Radiological Criteria for License Termination” in 10 CFR Part 20, Subpart E. The regulations require that, for the release of sites for unrestricted use, the total effective dose equivalent (TEDE) to an average member of a critical group, resulting from residual radioactivity that is distinguishable from background...

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