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radioactivity unit

Definitions

  • WordNet 3.6
    • n radioactivity unit a measure of radioactivity
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Usage


In news:

Highly radioactive wastewater from hydraulic fracturing operations in Pennsylvania could be making its way into Ohio's deep well injection sites, according to a report by the United States Geological Survey.
Jose Padilla, the US citizen the government suspects of planning to build and explode a radioactive "dirty bomb" in the United States, has an extensive criminal record, authorities said.
Jose Padilla, the US citizen the government suspects of planning to build and explode a radioactive " dirty bomb " in the United States, has an extensive criminal record, authorities said.
The arrest of a man suspected of planning to build and detonate a " dirty bomb " in the United States has heightened concerns about the availability of radioactive materials to potential terrorists.
EPA and USDA are monitoring food, rain, and potable water for levels of radioactivity that may have drifted to the United States from Japan.
Federal regulators say unusual wear has been found on dozens of virtually new tubes that carry radioactive water at Southern California's San Onofre Unit 2 nuclear plant.
The levels of radioactivity were still well below United States and Japanese safety limits.
Rod Minnott reports on one of the deadliest environmental hazards in the United States in which underground storage tanks are leaking highly radioactive waste in Southeast Washington.
Bluefin tuna carried radioactive contamination that leaked from Japan's crippled nuclear plant to the shores of the United States 6,000 miles away — the first time a huge migrating fish has been shown to carry radioactivity such a distance.
The unit of radioactivity used for natural gamma-ray logs.
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In science:

The overall radiological burden, which we express in units of “Roentgen equivalent for men,” rem, 3 is related to the speci fic radioactivity of the material under consideration, i.e., the number of disintegrations per second and per gram of material.
A comparison of delayed radiobiological effects of depleted-uranium munitions versus fourth-generation nuclear weapons
The above exponential decay law is a consequence of a surprisingly simple physical property: The probability per unit time for a single radioactive nucleus to decay is independent of the age of that nucleus.
Introduction to Astronomy with Radioactivity
The decay probability λ per unit time for a single radioactive nucleus is therefore a property which is specific to each particular type of isotope.
Introduction to Astronomy with Radioactivity
The daughter nucleus, 86Rn222, has charge Z − 2, where Z is the original charge of the radioactive nucleus (Z=88 in this example), because the α particle carried away two charge units from the original radioactive nucleus.
Introduction to Astronomy with Radioactivity
In the construction stage, these unit chambers will be tested with radioactive source, cosmic rays and with beams.
Calorimetry for Lepton Collider Experiments - CALICE results and activities
After production and before their final assembly into units each cell of a tube is scanned with a radioactive source.
The BABAR Muon System Upgrade
Au was observed by Butement in 1951 at the Atomic Energy Research Establishment in Harwell, United Kingdom, as reported in New Radioactive Isotopes produced by Nuclear Photo-Disintegration .
Discovery of the Gold Isotopes
Butement and Shillito report the first observation of 201Au in Harwell, United Kingdom, in 1952 in their paper Radioactive Gold Isotopes .
Discovery of the Gold Isotopes
Because the Pt layer was found to be variable, between 200 and 300 nm, precise quantum efficiency measurements will be carried out on a sample of XRDPIX units using the SOLEX facility. A 55Fe radioactive source, showing a characteristic X-ray line at 5.9 keV, will also be used during the XRDPIX performance assessments.
Extensive testing of Schottky CdTe detectors for the ECLAIRs X-Gamma-ray Camera on board the SVOM mission
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