Potential exposure assessment errors associated with body-worn RF dosimeters.
نویسندگان
چکیده
Personal exposure meters for assessing exposure to RF electric or magnetic fields are subject to errors associated with perturbations of the fields by the presence of the human body. Although these alterations are complex they are not completely unpredictable. This article concludes that this error in a common worst-case scenario could reach up to 30 dB and therefore is of concern for exposure assessment. We present several guidelines to address this issue and a useful insight into the overall problem based on finite-difference time-domain simulations and experimental verification.
منابع مشابه
Skin and eye lens as biological UVR dosimeters
The work has been carried out at Department of Dermatology, H:S Bispebjerg Hospital, Copenhagen. The main objective of the project was to explore, if the skin and the eye lens could be used as biological Ultraviolet Radiation (UVR) dosimeters. Solar UVR exposure is an important risk factor for development of skin cancer. A usable method for monitoring individual UVR exposure is therefore prereq...
متن کاملThe assessment of function, histopathological changes, and oxidative stress in liver tissue due to ionizing and non-ionizing radiations
Background: Compared to past decades, humans are exposed to rapidly increasing levels of radiofrequency electromagnetic radiations (RF-EMF). Despite numerous studies, the biological effects of human exposure to different levels of RF-EMF are not fully understood, yet. This study aimed to evaluate the bioeffects of exposure to "900/1800 MHz" and “2.4 GHz" RF-EMFs, and x-rays as well as their pot...
متن کاملDaily UVB exposure levels in high-school students measured with digital dosimeters.
UV radiation exposure increases skin cancer risk. A substantial portion of a person's UV exposure occurs before the age of 18 years. We sought to determine UVB radiation exposure levels in high-school students during normal daily activity. Digital dosimeters were worn by 4 high-school students during 11 school days. Students were subjected to daily erythemal and suberythemal doses of UVB radiat...
متن کاملThe Role of the Location of Personal Exposimeters on the Human Body in Their Use for Assessing Exposure to the Electromagnetic Field in the Radiofrequency Range 98–2450 MHz and Compliance Analysis: Evaluation by Virtual Measurements
The use of radiofrequency (98-2450 MHz range) personal exposimeters to measure the electric field (E-field) in far-field exposure conditions was modelled numerically using human body model Gustav and finite integration technique software. Calculations with 256 models of exposure scenarios show that the human body has a significant influence on the results of measurements using a single body-wor...
متن کاملOccupational radiation dosimetry assessment using an automated infusion device for positron-emitting radiotracers.
UNLABELLED Handling and administration of radiopharmaceuticals are a key contributor to staff radiation dose. Shielded automated infusion devices potentially standardize and reduce radiation exposure during procedures. However, loading the devices adds incremental radiation exposure, which may mitigate dose savings. We measured radiation doses from the loading and use of an automated infusion d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Bioelectromagnetics
دوره 28 7 شماره
صفحات -
تاریخ انتشار 2007