نتایج جستجو برای: ray radiation protection

تعداد نتایج: 683914  

Introduction Radiation protection is an important safety issue for radiographers and patients. The aim of this study was to assess the observance of radiation protection regulations in radiology departments of Kermanshah University of Medical Sciences, Kermanshah, Iran. Materials and Methods In total, 48 radiographers and 8 radiography rooms were evaluated in three hospitals of Kermanshah, Iran...

Journal: :iranian journal of nuclear medicine 0
lebriz uslu-beşli department of nuclear medicine, cerrahpaşa faculty of medicine, istanbul university, istanbul, turkey mustafa demir department of nuclear medicine, cerrahpaşa faculty of medicine, istanbul university, istanbul, turkey nami yeyin department of nuclear medicine, cerrahpaşa faculty of medicine, istanbul university, istanbul, turkey i̇ffet çavdar nuclear physics department, faculty of science, istanbul university, istanbul, turkey

undesired radiation exposure to caregivers is an important problem in radioiodine therapy in thyroid carcinoma patients, especially when patient is non-ambulatory. special precautions are needed to keep the exposure to caregivers low when higher dose of radioiodine is necessary. here we present a case-report of a 74-year old male patient with papillary thyroid carcinoma with local invasion and ...

رشیدی, مهدی, شیرخانلو, حمید, صفاری, مصطفی, عوادی, محمد رضا,

Introduction: During recent years, carcinogenic effects of X-ray have been proven. Todays, lead is used in many equipment such as  coats, thyroid shield, and gloves for body protection against X-ray. However, these equipments have several disadvantegous including toxicity, heaviness, and inflexibility. Hence, newer methods like protective semisolid products (cream, ointment) for topical applica...

  Background: The sporadic cases of radiation-activated multiple sclerosis (MS) has been previously described, with a few studies focused on the relationship between radiation and the risk of MS. The aim of our study was to evaluate the association between history of X-ray radiation and MS.   Methods : This case-control study was conducted on 150 individuals including 65 MS patients and 85 age-...

Fatemeh Zarei, Fatima Rezaei, Hossein sharafi, Safoura Rahimi, Yaser khanchemehr,

Introduction: Radiation has a negative biologic effect, which depends on the duration of exposure and dose. This study aimed to assess knowledge of the principles of radiation protection among medical staff in educational hospitals in Bandar Abbas University of Medical Sciences. Materials and Methods: This descriptive cross-sectional study was carried out on 105 health workers who were exposed ...

Journal: :iranian journal of radiation research 0
s.m.j. mortazavi school of medicine, rafsanjan university of medical sciences, rafsanjan, iran a. shareghi m. ghiassi-nejad a. kavousi m. jafari-zadeh f. nazeri

background: intraoral radiographies are the most frequent x-ray examinations in humans. according to international commission on radiation protection (icrp) recommendations, the selection of a diagnostic reference level (drl) should be specific to a country or region. critica l organs such as thyroid gland are exposed to x-rays in intraoral radiography and these exposures should be kept as low ...

Journal: :iranian journal of radiation research 0
m. alhasan department of allied medical sciences, faculty of applied medical sciences, jordan university of science and technology (just), irbid, jordan m. abdelrahman department of allied medical sciences, faculty of applied medical sciences, jordan university of science and technology (just), irbid, jordan h. alewaidat department of allied medical sciences, faculty of applied medical sciences, jordan university of science and technology (just), irbid, jordan y. khader department of public health-community medicine, faculty of medicine, irbid, jordan

background: radiology staff needs to justify the radiation exposures in order to protect themselves and others from radiation risks. the aims of this study were to examine the awareness level of radiation dose and protection amongst radiographers and to compare their performance between major jordanian hospitals. materials and methods: a cross-sectional survey was conducted in 4 major jordanian...

Journal: :iranian journal of radiation research 0
m. hajizadeh saffar medical physic research centre, bu-ali research institute, mashhad medical school, mashhad, iran s. nekoee medical physic research centre, bu-ali research institute, mashhad medical school, mashhad, iran e. hajizadeh saffar medical physic research centre, bu-ali research institute, mashhad medical school, mashhad, iran

background: a study has been conducted to assess two useful radiation protection indices, the annual per-capita effective dose equivalent (aed) and the genetically significant dose (gsd), from conventional diagnostic radiography in 10 counties with more than 1,886,000 inhabitants in khorasan province in iran. materials and methods: the health centre authorities of khorasan province were asked t...

2011
R. Qiu J. C. Liu A. A. Prinz S. H. Rokni M. Woods

Interaction of a high intensity laser with matter may generate an ionizing radiation hazard. Very limited studies have been made, however, on the laser-induced radiation protection issue. This work reviews available literature on the physics and characteristics of laserinduced X-ray hazards. Important aspects include the laser-to-electron energy conversion efficiency, electron angular distribut...

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