1. often said radiation is divided into α.β.γ three kinds of:
①. α is a positively charged helium nucleus, is the mass of the relatively large particles in the air in the shorter range (1-2cm, so you have to pay attention to the distance of the measurements), a piece of paper or to the layer of skin will be able to absorb it completely. It is only dangerous if it is inhaled or ingested into the body
②. β particles are much smaller than the first, and can travel a long distance through materials or the human body. air for some distance. It can be fully absorbed by plastic, glass or metal plates. Usually they cannot penetrate the surface of the skin. However, receiving larger exposures to high-energy radiators can cause skin burns.
3. γ radiation is often unstable atoms in the radiation of β particles at the same time radiate a very high energy photons (similar to a form of electromagnetic radiation in the visible light) when it passes through the material, it will make the atoms ionized, mainly because it can be interacted with the electrons within the atom. It has a very strong penetrating ability, and only fairly thick, dense substances such as iron or lead can provide a good shield.
2. The national fixed environmental radiation standard upper limit of 12v/m, individual instruments or electrical appliances, etc. is 5v/m, do not think that you measured 9.449 is a very low value, although the human body is not up to the harm, but has exceeded the standard of individual instruments.
3. The cell phone is connected to the moment of radiation from single digits to 50, 60, this is only instant radiation, do not worry, after reading the first article should know that it is not enough to cause harm to the human body, his value is mainly with the distance between the phone and the base station, the geographic environment, the cell phone battery power (cell phone power left very little when the radiation is much higher than the radiation of the time of the full power), and so on. Because the cell phone is farther away from the base station to receive the signal instantly will need a lot of instant power to support. Your RF amplifier's power of 40W has a proportional relationship to the monitoring results.
4. Our instruments are imported price between 20-30 million, what do you mean, you consider yourself.
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