نتایج جستجو برای: radiation protection principles

تعداد نتایج: 550421  

Journal: :iranian journal of medical physics 0
behrouz rasuli department of radiology technology, behbahan faculty of medical sciences, behbahan, iran mohamad javad tahmasebi birgani department of radiation therapy, golestan hospital, ahvaz jundishapur university of medical sciences, ahvaz, iran

introduction quality control techniques used to test the components of the radiological system and verify that the equipment is operating satisfactorily. in this study, quality control (qc) assessment of conventional radiology devices was performed in frequently visited radiology centers of khuzestan province, iran. materials and methods fifteen conventional radiology devices were examined, bas...

Introduction: Nuclear moisture density gauges are widely used in construction industry in different countries across the world, including Ghana, on a large scale. Like all irradiating devices, the nuclear gauges should be subjected to radiation safety assessment based on radiation protection and safety principles. Regarding this, the objective of this research was to i...

Journal: :jentashapir journal of health research 0
fatahi asl fatahi asl fatahi asl marzieh tahmasebi vahid karami

background diagnostic radiology is the process of obtaining a high-quality image while minimizing the doses received by patients. radiographers’ knowledge of protection and safety principles and their correct application plays a significant role in radiation protection. hence, this study aims to evaluate the radiographers’ protection and safety knowledge, attitude and practice in the radiology ...

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 ...

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: :health scope 0
vida zaroushani department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran ali khavanin department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran. tel: +98-2182883849, fax: +98-2182883825 seyed bagher mortazavi department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran ahmad jonidi jafari department of environmental health engineering, school of public health, iran university of medical sciences, tehran, ir iran

results the results showed that the epoxy plates 6 and 2 mm thick had the highest and the lowest averages of shielding effectiveness at 4.48 db and 1.90 db, respectively. however, increasing the thickness was useful up to 4 mm. in addition, in a similar attenuation pattern, x-band frequency was divided into lower, middle, and upper sections. the lower section had the highest shielding effective...

Journal: :RADIOISOTOPES 1981

Journal: :Annals of the ICRP 2015
M del Rosario Pérez

Advanced imaging technology has opened new horizons for medical diagnostics and improved patient care. However, many procedures are unjustified and do not provide a net benefit. An area of particular concern is the unnecessary use of radiation when clinical evaluation or other imaging modalities could provide an accurate diagnosis. Referral criteria for medical imaging are consensus statements ...

Journal: :Environmental Health Perspectives 1998
M Pollycove

The prime concern of radiation protection policy since 1959 has been to protect DNA from damage. In 1994 the United Nations Scientific Community on the Effects of Atomic Radiation focused on biosystem response to radiation with its report Adaptive Responses to Radiation of Cells and Organisms. The 1995 National Council on Radiation Protection and Measurements report Principles and Application o...

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