Absorbed Dose
Absorbed Dose - Related Videos
07:51
Gas Absorber
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2023
Source: Michael G. Benton and Kerry M. Dooley, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Gas absorbers are used to remove contaminants from gas streams. Multiple designs are used to accomplish this objective1. A packed bed column uses gas and liquid streams running counter to each other in a column packed with loose packing materials, such as ceramics, metals, and plastics, or structured packing1. The packed bed uses surface area created by the packing to...
13:44
Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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Cited by 6 •
2012
This protocol outlines the simulation, fabrication and characterization of THz metamaterial absorbers. Such absorbers, when coupled with an appropriate sensor, have applications in THz imaging and spectroscopy.
06:24
Minimal Erythema Dose (MED) Testing
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Cited by 70 •
2013
This article describes how to conduct minimal erythema dose (MED) testing in order to determine the lowest dose of ultraviolet radiation that will cause erythema (burning) when administered to an individual.
01:21
Dose Size and Dosing Frequency: Determination Methods
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2025
Determining the optimal dose size and dosing frequency in pharmacotherapy is crucial for achieving therapeutic effectiveness while minimizing adverse effects. This article explores the methodologies employed in determining these parameters, focusing on their significance and interplay to tailor dosing regimens.Dose Size: Dose size refers to the amount of a drug administered in a single dose. It is determined based on the drug's pharmacodynamics and pharmacokinetics properties and...
13:37
Template Directed Synthesis of Plasmonic Gold Nanotubes with Tunable IR Absorbance
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Cited by 1 •
2013
Solution-suspendable gold nanotubes with controlled dimensions can be synthesized by electrochemical deposition in porous anodic aluminum oxide (AAO) membranes using a hydrophobic polymer core. Gold nanotubes and nanotube arrays hold promise for applications in plasmonic biosensing, surface-enhanced Raman spectroscopy, photo-thermal heating, ionic and molecular transport, microfluidics, catalysis and electrochemical sensing.
FAQs
Deposited radiation energy can promote atoms and molecules to excited states or remove electrons through ionization. These events may weaken or break chemical bonds and generate reactive radicals. The radicals then participate in subsequent reactions, so absorbed dose provides a way to relate the energy delivered to chemical transformations in the irradiated material.
Ionization and excitation represent different ways radiation transfers energy to matter, but both can alter molecular structure. Their effects may include bond cleavage and the formation of radicals, which are highly reactive chemical species. Tracking these early events helps explain how irradiation produces later changes in chemical composition and material properties.
Absorbed dose supplies a quantitative link between radiation treatment and the response of a material. By relating the deposited energy to observed changes in composition or properties, researchers can compare radiation effects across chemical systems. This connection is especially useful when studying radiation-induced reactions rather than describing exposure only in general terms.
A study can record the absorbed dose delivered to a material, examine the resulting chemical changes, and relate those observations to radiation-induced reactions. Measurements of composition or material properties then provide evidence of the treatment outcome. This approach supports radiolysis studies, in which radiation-driven chemical changes are investigated systematically.
In radiolysis, absorbed dose helps characterize the energy input associated with chemical changes caused by ionizing radiation. In sterilization, it provides a quantitative basis for relating treatment conditions to radiation effects in the material being processed. In both settings, dose measurements help connect irradiation with an intended chemical or material outcome.
Absorbed dose is relevant wherever ionizing radiation is used to change or evaluate materials. Supported applications include radiation chemistry, radiolysis, sterilization, polymer modification, environmental analysis, and assessment of radiation effects in biological and industrial materials. The measurement helps relate the radiation treatment to changes in composition or material performance.