Ionizing radiation is an invisible threat that cannot be seen, touched or smelled and exists either as particles or waves. Particle radiation can take the form of alpha, beta or neutrons, as well as high energy space particle radiation such as high energy iron, carbon and proton radiation, etc [1]. Nonparticle radiation includes gammaand x-rays. Publically, there is a growing concern about the ...

An unqualified answer to the above question is "yes". A qualified response, however, requires that the word, "nonirradiated", be defined. A truly nonirradiated lung represents the pulmonary parenchyma that is not exposed to any type or amount of radiation. Currently, there is sufficient scientific basis to consider that this nonirradiated normal lung parenchyma can suffer injury caused by radia...

in the present study, advanced oxidation treatment, uv/ was applied to decolourisation of acid orange 8 (ao8). the uv radiation was carried out with a 15 w low-pressure mercury lamp. kinetic model for the decolourisation of the dye was developed based on experimental results and known chemical and photochemical reactions. the observed kinetic reaction constant was determined and correlated as a...

HE proportion of the eggs laid by Drosophila females that fail to develop T into adult flies is increased when the sperms used in fertilizing the females have been previously treated with ionizing radiation. It is generally believed that these induced failures of development are due to “dominant-lethal” changes in the genetic material of the treated sperms. These changes have been visualized al...

1. When Fucus eggs which have been fertilized for a sufficient length of time are irradiated unilaterally with monochromatic ultraviolet light (lambda2804 A) of adequate dosage, 97-100 per cent form rhizoids on the halves of the eggs away from the source of radiation (see Figs. 1 and 2). 2. The responsiveness of the eggs increases gradually after fertilization and does not reach a maximum until...

Background: in radiation treatment of moving targets located in thorax region of patient body, the delivered dose does not match with the planned treatment, resulting in some over and under dosage in the tumor volume, as a function of motion magnitude and frequency. Several efforts have been done to investigate the target motion effects on dose distribution in the target and surrounding normal ...

OBJECTIVE The aim of this work was to determine the radiation dose received by infants from radiographic exposure and the contribution from scatter radiation due to radiographic exposure of other infants in the same room. MATERIALS AND METHODS We retrospectively evaluated the entrance skin doses (ESDs) and effective doses of 23 infants with a gestational age as low as 28 weeks. ESDs were dete...