Guidelines to radiation doses
نویسندگان
چکیده
منابع مشابه
Radiation doses to patients in neurointerventional procedures.
PURPOSE To evaluate stochastic and deterministic risks associated with neurointerventional procedures for the patient. METHODS Eight neurovascular interventional procedures were evaluated to determine the entrance skin dose and effective dose for the patient. Dosimetry was done with thermoluminescence dosimeters. The highest dose on the patient's head was recorded as the maximum entrance skin...
متن کاملChapter 36 : Effective doses , guidelines
The conditions which favour the growth of cyanobacteria and lead to blooms are nutrient enrichment (largely phosphorus but also nitrogen), warm temperatures, and calm stable water conditions such as those occurring in thermally stratified lakes and slow-flowing rivers. The latter may be the result of hydrology altered by abstraction practices. These conditions are often caused by human actions ...
متن کاملChronological response of prostacyclin changes to moderately low doses of radiation in Rat cervical spinal cord
Background: Study of vascular and its secretory profile changes is an important issue in pathogenesis of radiation myelopathy. This paper reports the prostacyclin concentration changes after low-moderate doses of X-irradiation within a short period of time. Materials and Methods: Cervical cords of Wistar rats were irradiated to doses of 0.5, 1, 2, 4 and 6 Gy X-rays. After 24 hours, 2 and 13 ...
متن کاملExtrapolating radiation-induced cancer risks from low doses to very low doses.
There is strong evidence that ionizing radiation increases cancer risks at high doses (e.g., >or=1 Gy), and persuasive, if controversial, epidemiological evidence that cancer risks are increased at low doses ( approximately 10 mGy). Discussed here are the issues related to extrapolating radiation risks from low radiation doses to very low doses (<or=1 mGy) - for which purpose we are forced to r...
متن کاملPaper EXTRAPOLATING RADIATION-INDUCED CANCER RISKS FROM LOW DOSES TO VERY LOW DOSES
There is strong evidence that ionizing radiation increases cancer risks at high doses (e.g., >1 Gy), and persuasive, if controversial, epidemiological evidence that cancer risks are increased at low doses ( 10 mGy). Discussed here are the issues related to extrapolating radiation risks from low radiation doses to very low doses (<1 mGy) — for which purpose we are forced to rely on radiobiologic...
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ژورنال
عنوان ژورنال: Nature
سال: 1983
ISSN: 0028-0836,1476-4687
DOI: 10.1038/304678d0