Photon activation analysis of toxic elements
نویسندگان
چکیده
منابع مشابه
Determination of Interesting Toxicological Elements in PM2.5 by Neutron and Photon Activation Analysis
Human activities introduce compounds increasing levels of many dangerous species for environment and population. In this way, trace elements in airborne particulate have a preeminent position due to toxic element presence affecting the biological systems. The main problem is the analytical determination of such species at ultratrace levels: a very specific methodology is necessary with regard t...
متن کاملInstrumental Neutron Activation Analysis of Trace Elements in Some Food Spices Consumed In Tehran, Iran
Introduction There is a growing interest in determining the concentration of various elements in food spices. In the present study, the instrumental neutron activation analysis (INAA) was employed to measure the trace elements in 11 commonly food spices consumed in Tehran, Iran. Materials and Methods The levels of K, Mn, Na, Cl, V, Br, Al, and As were determined and their effects on human healt...
متن کاملConcentration Measurement of 12 Elements in Five Herbal Plants Using Neutron Activation Analysis Approach
Introduction: Nowadays, many people use medicinal plants to manage diseases; therefore, detailed knowledge of the type and level of elements present in these plants is of prominent importance.The present study aimed to determine the weight fraction of 12 elements in the five most common medicinal plants in Iran. The names of these plants are caraway (Carum carvi), savo...
متن کاملToxic Elements in Soils
MAMMALS and birds sometimes seek shelter or nesting sites in the ground. Many of them scarcely affect the soil as a medium for plant growth. A notable exception is the soil-dwelling rodents. Although their acreweight is usually only about a few pounds even in the uncultivated land, their soil transporting activities sometimes are considerable. In building their tunnels and nests, they transport...
متن کاملEnergy Optimization And Calculation Of Dose Absorption Enhancement Factor In Photon Activation Therapy
Introduction: Secondary radiation such as photoelectrons, Auger electrons and characteristic radiations cause a local boost in dose for a tumor when irradiated with an external X-ray beam after being loaded with elements capable of activating the tumor, e.g.; I and Gd. Materials and Methods: In this investigation, the MCNPX code was used for simulation and calculation of dose enhancement facto...
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ژورنال
عنوان ژورنال: Science
سال: 1975
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.187.4173.275-a