Noise dosimeters: on measurement reliability and instrument accuracy

Diffusion measurement in ferrous infused gel dosimeters

Background: The compositions of Ferrous sulphate, Agarose and Xylenol orange dye (FAX) and Ferrous sulphate, Gelatin and Xylenol orange dye (FGX) in solution of distilled water and sulphuric acid are two tissue-equivalent gel dosimeters. Ionizing radiation causes oxidation of Fe2+ ion to Fe3+ ions which diffuse through the gel matrix and blur the image of absorbed dose over a period of hours af...

Instrument Reliability

Reliability and accuracy of wound surface measurement using mobile technology

As the population ages and the chronic diseases raised, chronic wounds also increase, creating a huge burden on the health system. In outpatient care, the most common wound measurement technique remains the gradual ruler, which is a simple and fast but relatively inaccurate method. Mobile phones enable permanent access to a camera and the technology now integrates image processing. A mobile app...

Vehicles and Noise Pollution Measurement and their Effects on Public and Mental Health on Qom Citizens

One of the most important issues in today&rsquos urban world is increasing use of cars and its noise pollution, which is now one of the most important affecting pollutants on health and quality of lives of residents in urban areas. Noise pollution effects on various aspects of human and the community health as well as the high cost of treatment, thus more studies in this field is needed. Hence ...

Noise and reliability measurement of a three-axis micro-accelerometer

A special measurement system is developed to measure the combined noise and reliability of a three-axis micro-accelerometer. Three parametric tests are provided: gravitational, thermal and acoustical. The measurements were performed on both the in-plane and the out-of-plane axes. The temperature-dependence and acceleration-dependence of the noise was found, in agreement and contrast to the theo...