Scientists have found some secrets of the Van Allen radiation belt (video)-www.bv2008.cn

The scientists found that the Van Allen radiation belt there are still some mystery in 2012, NASA launched a detailed study on the detector to them, this is the first time ever that the two spacecraft and the observation of the radiation belt, they can exchange information with each other to get more data in the United States to launch a satellite on the Van Allen radiation belt space Tencent news according to foreign media reports, the earth’s magnetic field can capture a large number of high-energy particles, these particles will gather and grow wide bands, like a giant donut generally around the earth. The radiation zone is the first satellite in 1958 1, American explorers discovered. As the leader of the project was James Van Allen of University of Iowa, the radiation belt was eventually named after him. In the January 31, 1958 launch of Explorer 1, cosmic ray detector using Allen Van very simple — just a Geiger counter (of a radiation detection instrument) and a tape memory. In the subsequent 1958 3 space mission – Explorer 3, Explorer 4 and pioneer 3, follow up the experiment to determine the two radiation belt around the earth. Radiation belt models for decades are so simple. In 2012, NASA launched a pair of detectors to study them in detail. This is the first time that two spacecraft have been observing the radiation belts at the same time. They can exchange information with each other for more data. Van Allen detector (formerly known as the "radiation belt storm detector") several target, including exploring the particle radiation band (ions and electrons) is how to speed up and transfer; electronic is how to disappear in the radiation zone; geomagnetic storms occur when the radiation belt is how to change. The mission had been planned for two years, but by August 2016, the probe would have been able to work well beyond two years of life expectancy. One of the concerns of the observations is the location of the Van Allen band. We already know that the radiation belt expands when the sun gets stronger. Before the launch of the probe, scientists believe that the inner radiation belt is relatively stable, only when the expansion will spread to the international space station and some satellites orbit. External radiation belt will fluctuate. It takes a few months to calibrate the instrument. But the team of relativistic electron proton telescopes called for their instruments almost immediately after launch (3 days later). The reason for this is that they hope to compare the results of the other spacecraft, the solar energy, the anomaly, and the magnetic field particle detector (SAMPEX) before and after the re-entry orbit. NASA said in February 2013 that it was a fortunate decision. When the instrument is turned on, it will catch up with the solar storm leading to the expansion of the radiation belt. No one has ever seen such a scene before, the particle has a new feature, showing an additional radiation into space. The space agency added that the Van Allen probe, after less than a few days of launch, has brought scientists with the possibility of rewriting textbooks. The data collected by the detector also show that the radiation belt protects the earth from high energy particles. The main author of the article, University of Colorado Dan B)相关的主题文章: