radioactivity in

National and international regulations on the levels and types of energy used to irradiate food generally set standards that prevent the possibility of inducing radioactivity in treated foods, and, hence, excluding the risk to workers and the environment.

However, both slow and fast neutrons react with the atomic nuclei of many elements upon collision with those nuclei, creating unstable isotopes and therefore inducing radioactivity in a previously non-radioactive material.

In the worst affected zones, radioactivity in the tainted water reaches millions of picocuries per liter.

In March 2011, following the Fukushima I nuclear accidents, levels of radioactivity in Utsunomiya were 33 times higher than normal.

Three Bikini families returned in 1974 but were evacuated again in 1978 because of radioactivity in their bodies from four years of eating contaminated food.

Generally it can be said that lower-yield explosions have about 90 % of radioactivity in the mushroom head and 10 % in the stem.

Megaton-range explosions tend to have most of the radioactivity in the lower third of the mushroom cloud.

The study of phosphorescent materials led to the discovery of radioactivity in 1896.

The discovery of x-rays and radioactivity in the last years of the 19th century led to an increase in the popularity of this family of weapons, with numerous examples in the early twentieth century, such as the disintegrator rays of George Griffith's future war novel The Lord of Labour ( 1911 ).

Another, sometimes more severe hazard of neutron radiation, is neutron activation, the ability of neutron radiation to induce radioactivity in most substances it encounters, including the body tissues of the workers themselves.

From 1922, A. C. Gilbert made chemistry sets in various sizes as well as similar sets for the budding scientist, adding investigations into radioactivity in the 1950s with a kit featuring a Geiger counter.

Levels of radioactivity in the trinity glass from two different samples as measured by gamma spectroscopy on lumps of the glass

When the scale is found to be radioactive, the three test for radioactivity in an industrial area where it was found.

Some areas around Ramsar have the highest level of natural radioactivity in the world, due to the presence of radioactive hot springs.

With a scholarship from the University of Birmingham he pursued research in physics following the discovery of X-rays and radioactivity in the mid-1890s.

Then the two phases are separated before the radioactivity in each phase is measured.

:* To maintain and develop a national laboratory for the measurement of levels of radioactivity in the environment, and to assess the significance of these levels for the Irish population.

A group of soldiers are taking turns using a Geiger counter to find a small and harmless hidden source of radioactivity in a wide pit area.

* Since liquid metals have low moderating power and ratio and no other moderator is present, the primary interaction of neutrons with liquid metal coolants is the ( n, gamma ) reaction, which induces radioactivity in the coolant.

This releases a surge of neutron radiation which is highly dangerous to humans and causes induced radioactivity in the surroundings.

She / it was born as a result of radioactivity in the sun and is the true mastermind behind the Dark Kingdom.

The International Atomic Energy Agency said that radioactivity in the area was tolerable to humans for a limited period.

As an experiment, fires were set and the levels of the radioactivity in the air downwind of these fires was measured.

A classic example is radioactivity in scrap ; see the Goiânia accident and the Mayapuri radiological accident as examples of accidents involving radioactive materials, which entered the scrap metal industry and some details of the behavior of contaminating chemical elements in metal smelters.

The radioactivity in MBq per gram of each of the platinum group metals which are formed by the fission of uranium.