نتایج جستجو برای: chemical dosimeter

تعداد نتایج: 379992  

Journal: :American Journal of Public Health and the Nations Health 1965

Journal: :IEEE Transactions on Nuclear Science 2010

Journal: :Japanese Journal of Radiological Technology 2021

Purpose In 2011, the International Commissionon Radiological Protection (ICRP) recommended reducing threshold dose for lens. Therefore, it is important to reduce lens exposure in medical exposures. a cranio-caudal (CC) view of mammography, patient' s receives scattered radiation. this study, we investigated scatter around during mammography and reviewed simple easy protection methods Methods Op...

2009
C. Cosma T. Jurcut V. Benea M. Moldovan Alida Timar

The possibility to combine the track-etched CR-39 or Makrofol detectors with charcoal to increase the detector sensitivity was shown in the last years. Special requests are necessary in the case of a personal dosimeter when the detector must be active only during working activity. Regarding the combination of charcoal with TL detectors our preliminary investigations indicate that the TLD intens...

Journal: :Chest 1991
G C Scott S R Braun

The purpose of this study was to survey the current techniques and methods of analysis in bronchoprovocational challenges currently in use. A questionnaire was sent to 94 investigators who had recently published an article in which a bronchoprovocational technique was used. They were asked to answer questions regarding the techniques used in challenge procedures and to calculate the results of ...

2014
Darwish Al-Azmi

A mobile system comprising of a Geiger-Muller (GM) dosimeter connected with a smart phone was used for ambient gamma dose rate survey within the districts and on the roads within the state of Kuwait. While the dosimeter provides data on gamma dose rates, the smart phone provides the GPS navigation information and saves the data for subsequent analysis and mapping. The survey covered a total dis...

2004
A. T. Baptista Neto T. A. Da Silva

X-ray machines that comply with the ISO requirements for calibrating personal dosimeters sometimes are not available in a world region, mainly in developing countries. This is used as an excuse for a lack of personal dosimeter calibration and, consequently, a lack of reliability in the individual monitoring programs. Considering the availability of x-ray machines in many hospitals, this work sh...

Journal: :Journal of Nuclear Science and Technology 1968

Journal: :The European respiratory journal 1999
R J Ward P Liakakos R F Leonard D W Reid D P Johns E H Walters

Multicentre studies of airway responsiveness (AR) are increasingly important tools in asthma epidemiology. Because comparisons of AR are made between centres it is essential that measurement techniques are accurate and standard. This study investigated the Mefar dosimeter which is currently used in the 35 centre European Community Respiratory Health Survey (ECRHS) with the next phase currently ...

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