Induced radioactivity - a radioactive substance that occurs under irradiation of ionizing radiation , usually neutrons or protons.

1. Dmitri Popov. PhD, Radiobiology.
MD (Russia)
Advanced Medical Technology and Systems Inc.
Radiation Protection against
Postradiation Induced Radioactivity.

2. Induced Radioactivity.
 Induced radioactivity - a radioactive substance
that occurs under irradiation of ionizing radiation ,
usually neutrons or protons.

3. Induced Radioactivity
 At the irradiation by particles ( neutrons , protons
, gamma rays ) stable nuclei can be converted
into radioactive nuclei with different half-life ,
which continue to radiate long time after
cessation of exposure.
Especially strong radioactivity that are induced by
neutron irradiation .

4. Induced Radioactivity.
 This effects are due to the following properties of
the particles in order to cause a nuclear reaction
with the formation of radioactive nuclei , gamma
rays and the charged particles have higher
energy (not less than several MeV).

5. Induced Radioactivity.
 Neutrons are captured by nuclei at any energy ,
moreover, the maximum probability of neutron
capture is low energy . Therefore , spreading in
the material , the neutron can get into a lot of
cores sequentially until captured by another
nucleus , and the probability of neutron capture is
almost equal to one.

6. Induced Radioactivity.
Absorption of neutrons does not necessarily lead
to the appearance of induced radioactivity .
Many nuclei can capture a neutron to form stable
nuclei , such as boron - 10 could become a stable
boron- 11 ( if the neutron capture the nucleus
does not lead to the formation of lithium and
alpha particles ) , light hydrogen ( VS) - in a
stable deuterium.
In such cases, there is no induced radioactivity.
https://ru.wikipedia.org/wiki/

7. Induced Radioactivity.
 The process of conversion of non-radioactive
nuclei in to a radioactive substance and creation
of radioactive isotopes by radiation is called
Activation.

8. Induced Radioactivity.
 Based on the effect of induced radioactivity was
founded a powerful method for determining the
composition of the substance , called activation
analysis .
 The sample is irradiated with a neutron flux
( Neutron activation analysis ) or gamma - rays
( Gamma- activation analysis ) or proton
( Proton activation analysis ).

9. Induced Radioactivity
 This induced radioactivity in the human tissue
sample , the nature of which , with the same
nature of exposure is completely determined by
the isotopic composition of the sample.
Studying the gamma-ray emission spectrum of a
sample can be very accurately determine its
composition.
The limit of detection of different elements
depends on the intensity of radiation and up to
10-4-10-7 % for gamma activation analysis and to
10-5-10-10 % for neutron activation analysis .

10. Induced Radioactivity
 One of the effects of a nuclear explosion is
radioactive contamination . The main contribution
to the radioactive contamination of making
fragments of nuclear fission of uranium or
plutonium , but partly radioactive contamination is
provided by the induced radioactivity.

11. Induced Radioactivity
 Especially strong induced radioactivity in the
explosion of fusion ( including neutrons) charges.
As the neutron yield more energy per unit and
this energy is several times higher than that of
nuclear weapons , and the average energy of the
neutrons is also higher , which makes possible
the addition reactions of threshold.

12. Induced Radioactivity.
 The explosion of the neutron bomb with a
capacity of 1 kt exploded around 700 meters from
the MILITARY Tank not only kills the crew of
neutron radiation , but also creates an induced
radioactivity in the armor , enough to obtain a
lethal dose of a new crew for the day.
 Bodies of irradiated mammals can create Induced
Radioactivity as well.

13. Induced Radioactivity.
 The principle of induced radioactivity is the basis
of Cobalt Bomb- possible object of interest for
terrorists. This is the kind of nuclear weapons ,
which is a major factor affecting radioactive
contamination . It is a thermonuclear bomb with a
shell of cobalt, which under the influence of
neutron radiation explosion created the isotope
cobalt- 60 - the strongest gamma-ray source with
a half-life of 5.27 years. Being sprayed by a
nuclear explosion over a large area , cobalt -60
would make them permanently unfit for habitation
.

14. Induced Radioactivity.
 Radiation Protection.
 Under way.

15. Induced Radioactivity.
 Радиоактивность наведённая. Атомная
энциклопедия. Архивировано из
первоисточника 13 мая 2012.
 Колотов В. П. Теоретические и
экспериментальные подходы к решению задач
активационного анализа, гамма-спектрометрии
и создания малоактивируемых
материалов. Дисс. ... д. хим.
н. (2007). Архивировано из первоисточника 13
мая 2012.
 П. Д. Смит. Кобальтовая бомба.

16. Induced Radioactivity.
 https://ru.wikipedia.org/wiki/Наведенная_радиоак
тивность