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Short te xt c) Radiation shielding (protection of ionizing radiation). Practically three types of protection of ionizing radiations are discussed: protection by time, distance and material. This is obviously from the formula (4): X=K_(Y)ADelta t/r^2. Protection by time. The less the time period of ionizing radiations action the more protection is. Protection by distance. The further you are posed from the source of radiation, the less the dose of radiation. Protection by material. This kind of protection is based on different ability of materials to absorb different types of ionizing radiation. The sheet of paper or a layer of air in the same centimeters can protect from a-particles. Metallic aluminum plate or glass can become protection from beta - particles. The protection of the y-radiation and neutrons is the most complex , since these kinds of radiation have minor probability of interaction with particles of material and get deeper into it. Material in the end of the periodic tables of elements (lead) can protect us from x- and y- rays. Neutron radiation requires specifically complex protection Firstly, high-velocity neutrons are slowed down, for instance, in water. Then, materials, capable to absorb the neutrons are used: (}_{48)^113Cd+_(0)^1narrow ^114_(48)Cd Energy and, accordingly, a velocity of neutrons are necessary to be taken into account. The less velocity of neutrons is, the more probable a capture of the neutrons by an atom or a molecule of the material is. So it is necessary to decelerate neutrons . It can be made with interaction neutrons and an absorber.

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Short te xt
c) Radiation shielding (protection of ionizing radiation).
Practically three types of protection of ionizing radiations are discussed: protection by time, distance and
material. This is obviously from the formula (4):
X=K_(Y)ADelta t/r^2.
Protection by time. The less the time period of ionizing radiations action the more protection is.
Protection by distance. The further you are posed from the source of radiation, the less the dose of radiation.
Protection by material. This kind of protection is based on different ability of materials to absorb different
types of ionizing radiation.
The sheet of paper or a layer of air in the same centimeters can protect from a-particles. Metallic
aluminum plate or glass can become protection from beta - particles. The protection of the y-radiation and neutrons
is the most complex , since these kinds of radiation have minor probability of interaction with particles of
material and get deeper into it. Material in the end of the periodic tables of elements (lead) can protect us from
x- and y- rays.
Neutron radiation requires specifically complex protection Firstly, high-velocity neutrons are slowed
down, for instance, in water. Then, materials, capable to absorb the neutrons are used:
(}_{48)^113Cd+_(0)^1narrow ^114_(48)Cd
Energy and, accordingly, a velocity of neutrons are necessary to be taken into account. The less velocity
of neutrons is, the more probable a capture of the neutrons by an atom or a molecule of the material is. So it is
necessary to decelerate neutrons . It can be made with interaction neutrons and an absorber.

Short te xt c) Radiation shielding (protection of ionizing radiation). Practically three types of protection of ionizing radiations are discussed: protection by time, distance and material. This is obviously from the formula (4): X=K_(Y)ADelta t/r^2. Protection by time. The less the time period of ionizing radiations action the more protection is. Protection by distance. The further you are posed from the source of radiation, the less the dose of radiation. Protection by material. This kind of protection is based on different ability of materials to absorb different types of ionizing radiation. The sheet of paper or a layer of air in the same centimeters can protect from a-particles. Metallic aluminum plate or glass can become protection from beta - particles. The protection of the y-radiation and neutrons is the most complex , since these kinds of radiation have minor probability of interaction with particles of material and get deeper into it. Material in the end of the periodic tables of elements (lead) can protect us from x- and y- rays. Neutron radiation requires specifically complex protection Firstly, high-velocity neutrons are slowed down, for instance, in water. Then, materials, capable to absorb the neutrons are used: (}_{48)^113Cd+_(0)^1narrow ^114_(48)Cd Energy and, accordingly, a velocity of neutrons are necessary to be taken into account. The less velocity of neutrons is, the more probable a capture of the neutrons by an atom or a molecule of the material is. So it is necessary to decelerate neutrons . It can be made with interaction neutrons and an absorber.

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The text discusses the three main types of protection against ionizing radiation: protection by time, distance, and material. The formula provided, $X=K_{Y}A\Delta t/r^{2}$, is used to calculate the dose of radiation received. The text explains that the less time the radiation acts, the more protection is provided. Additionally, the further away from the source of radiation, the less the dose of radiation. The text also discusses the different materials that can provide protection against different types of ionizing radiation, such as alpha particles, beta particles, and gamma rays. The text concludes by discussing the specific protection required for neutron radiation, which involves slowing down the neutrons and using materials that can absorb them.
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