Induced radioactivity occurs when stable nuclei become radioactive due to exposure to ionizing radiation such as neutrons or gamma rays. This process can be harnessed for activation analysis, allowing for the determination of a sample's composition based on its isotopic makeup. Additionally, induced radioactivity poses risks in nuclear weapons contexts, particularly in creating long-lasting radioactive contamination.

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