Sentences with phrase «measure radiation doses»
A new study by Dr. Guerda Massillon, researcher at the National University of Mexico (UNAM), looked at the properties of various materials called dosimeters that measure radiation doses.
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The detector developed at UNH, known as DoSEN, short for Dose Spectra from Energetic Particles and Neutrons, measures and calculates the absorbed dose in matter and tissue resulting from the exposure to indirect and direct ionizing radiation, which can change cells at the atomic level and lead to irreparable damDose Spectra from Energetic Particles and Neutrons, measures and calculates the absorbed dose in matter and tissue resulting from the exposure to indirect and direct ionizing radiation, which can change cells at the atomic level and lead to irreparable damdose in matter and tissue resulting from the exposure to indirect and direct ionizing radiation, which can change cells at the atomic level and lead to irreparable damage.
«In an earlier phase I clinical study, our group has shown that increasing the dose of radiation delivered daily with high precision and using image guidance may offset the need for chemotherapy in improving survival, and it may also improve quality of life measures by reducing treatment periods in half.
At one extreme, the scientists estimated fly ash radiation in individuals» bones at around 18 millirems (thousandths of a rem, a unit for measuring doses of ionizing radiation) a year.
Those results were combined with a measure of exposure to natural doses of radiation in the tooth.
Measured in millisieverts (mSv), the average radiation dose from an abdominal - pelvic CT is 10 mSv, compared to 0.02 to 0.2 mSv from one chest x-ray, meaning that a radiation dose from a CT scan is best approximated as between that from 100 - 250 chest radiographs.
The general population in northeastern Japan, however, has considerably less access to accurate, non-invasive radiation dose measuring equipment, a troubling situation made more so by Wednesday's announcement by Japan's science ministry that small amounts of cancer - causing radioactive strontium have been detected in soil and plants outside the 30 - kilometer zone around the plant where the government has advised people to stay indoors.
A collaboration of researchers from the Université de Bordeaux, Centre National de la Recherche Scientifique and CEA?LIST has developed an ultra-thin diamond membrane that can measure the number of protons in a dose of radiation with almost perfect accuracy.
The radiation dose is precisely measured and carefully aimed to kill as many cancer cells as possible while sparing normal tissue.
His MSc thesis (1987) dealt with the description and application of a system for calculating radiation doses due to long range transport of radioactive releases and his Licentiates's thesis (1998) studied the effective choice of NOx - emission control measures.
«the impact of ozone - depleted air mass occurrences on ultraviolet radiation is evaluated by relating total ozone and UV erythemal dose measured at the stations.