It is a common practice to check the performance of a TLD reader by inserting a light source composed of a phosphor mixed with a radioactive material, e.g., 14C . The response to the light source is used as a measure of a) the calibration or long-term stability of the reader and b) the ability of the reader to reproduce a constant signal. Usually the laboratory which measures a wide range of do...

This paper presents a method for the evaluation of the distribution of the facial erythemal UV exposure and the erythemal UV exposure per unit area of the face using only eight dosimeters located on the vertex of the head, forehead, nose, chin, left and right ears and left and right cheeks. An overall picture of the parts of the face receiving high UV exposures is provided. The distribution of ...

Retrospective dosimeters are sometimes needed after radiological/nuclear (RN) exposures to determine the doses to individuals. Conventional dosimeters may not be at hand or may not be applicable calling for alternative materials. The possible exposure situations can be divided into external and internal; the radiation field stems either from outside the body or from a source within. This thesis...

Introduction Evaluation of the delivered dose of externally wedged photon beams by external diode dosimeters during the treatment process requires the estimation of exit surface dose correction factors in various wedge angles

In this review uses of Polymer electrets as an important class of organic materials finding its use in variety of electronic and electrical engineering industry ranging from photovoltaic cells, transducers, dosimeters and other applications are discussed.

In the retrospective dose assessment of individuals potentially exposed to ionizing radiation after an accident, dosimetry with inert materials can complement or be used as an alternative to biodosimetry assays. Dosimetry based on physical methods such as Electron Paramagnetic Resonance (EPR), Thermoluminescence (TL) or Optically Stimulated Luminescence (OSL) provides measurements of absorbed d...

BACKGROUND The recent spread of positron emission tomography-computed tomography (PET/CT) poses extremity dosimetry challenges. The question arose whether the radiation dose measured by the ring thermoluminescent dosimeter usually worn on the proximal phalanx (P1) of the index finger measures doses that are representative of the true doses received by the upper extremities of the operators. A p...

As of October 1996 there are more than 90 radiation-contaminated steel supported rebar buildings (containing more than 1000 apartments) dispersed in the northern part of Taiwan. These apartments were contaminated with cobalt-60 at a total activity ranging from 1-140/tSv/yr. In this paper, a method is developed for evaluating external dose equivalent and dose equivalent rates encountered by the ...

OBJECTIVES Usability is an important but often overlooked aspect of personal protective equipment technology. As part of a worksite intervention trial of a new technology for prevention of noise-induced hearing loss that allows workers to monitor their noise exposure inside of hearing protection on a daily basis, we studied the usability of the daily noise exposure monitoring device. METHODS ...