What Is the Radiation Belt?
The Van Allen radiation zone refers to the high-energy particle radiation zone that surrounds the earth in the near-cosmic space near the earth. It mainly consists of electrons up to several megaelectron volts and protons up to several hundred megaelectron volts captured in the geomagnetic field. Few percentages of heavy particles like O +. The Van Allen radiation zone is divided into two layers, the inner and outer layers. There is a Van Allen zone seam, and there is little radiation in the seam. The Van Allen radiation belt surrounds the earth in the middle. The high-energy particles in the Van Allen belt are harmful to manned space vehicles and satellites. The gap between the inner and outer belts is a safe area with less radiation. Discovered and named after American physicist James Van Allen in 1958.
- Van Allen radiation zone refers to the near layer near the earth
- Van Allen
- In 2013, Baker led a research team using the twin Van Allen detector launched by NASA in 2012 to discover a third, short-term "storage layer" between the inner and outer radiation zones, the latter It appears to occur and disappear during periods of intense space weather. [2]
- Generally speaking,
- Early 20th Century,
- The Van Allen Radiation Zone was first discovered by NASA's Explorer 1 spacecraft. Scientists have long been confused by many of these mysteries. Among them, the inner radiation zone is located in the range of 1,000 miles to 8,000 miles from the ground, and the stability is very good. However, the outer radiation bands located between 12,000 and 25,000 kilometers vary widely. During solar storms, the outer radiation band can expand more than 100 times and can devour communications satellites and scientific satellites, exposing them to harmful radiation.
- What is even more confusing is that the response of outer radiation to solar storms is not always the same. Sometimes the radiation band expands, sometimes it shrinks. The primary task of the CREPT satellite is to find out the physical mechanism of the lost electrons in the outer radiation zone.