Why is Radium Hot Spring, a radiation fountain, safe?

ByDuchamp

As the Fukushima Daiichi nuclear related news continues every day, interest in "radiation itself" is rising. While listening to radioactive related stories, I heard it on hot spring programs on TV and on hot springs etc.radiumThere are people who reminded me of hot springs.

Radium spa is legalRadiation fountain"It is defined as. Although I have an impression that it seems to be very dangerous when I say radioactive springs, I have examined why Radium hot springs are safe.

So, the details of radium spa are from the following.Bunkado Homepage | "Is radiation safe?"

I see! Nuclear AtoZ | Radiation | Type and impact of radiation |

In the first place, what is radiation is, in general, it has high energy with ionizationElectromagnetic wavesYaParticle beamIt refers to. "Ionization"Flicks off the orbital electrons of atoms and converts it into cations andFree electronIt is an action to separate into. Many people think that "radiation = exposure", but this is caused by ionization, which is one of the characteristics of radiation.

This figure showsJapan Radiation Public Safety AssociationIssued in January 2011 "Illustration "How about radiation?" - How to respond to questions of patients and pregnant womenWhat was posted on the 4th page of. It is like an image like this.


There are various kinds of radiation, such as alpha ray (alpha ray), beta ray (beta ray), gamma ray (gamma ray), and the properties vary depending on the type. For example, alpha rays that are particle beams can not pass through even about one sheet of paper. On the other hand, γ rays, which are electromagnetic waves, depend on their strength, but permeability is strong enough to prevent penetration if they are not dense substances such as concrete and lead.


With radium,uraniumIs a substance that can be formed in the process of collapsing while releasing energy, and the one in which the radium collapsedradonIt's called. Radon is a colorless and odorless gaseous substance which occupies more than half of natural radiation. Groundwater passing through a stratum containing high concentrations of radon becomes hot spring water containing radon, and legal "hot springs containing radon containing a certain amount or more" are treated as "radiation fountains" by law. And it is said that radiation fountains rich in radon are commonly called radium spa.

ByYasuhiro

Radon radiates alpha radiation even in radiation, but alpha rays have very high energy compared to gamma rays and beta rays. However, since α ray is too weak to penetrate paper, energy does not come out of the body even if it is taken into the body. Therefore, it will emit a large amount of energy directly to the cell and give a strong stimulus. By the way, 50% of the radon entering the body disappears in 30 minutes and most of the radon is discharged from urine etc in about 2 hours.

ByWajimacallit

For that reason, there is no such thing as the radiation dose in the air increases and the health increases as a result of the situation occurring in the Fukushima Daiichi Nuclear Power Plant, and as the value of environmental radiation increases, it is said that "rather it will have a good health impact" In principle it is impossible to think of. It is totally different thing.

(Reference:Japan Radiation Public Safety Association"Is radiation safe?")