The mainland Chang'e 5 lunar probe retrieved 1731 grams of lunar soil samples on the moon, becoming the third country in the world to retrieve lunar samples, the world cheered, which is also one of the proudest places in the Chinese, China is no longer a poor and backward country, whether it is science and technology or economy, is the world leader.
So now, the most concerned question of the Chinese people is of course the lunar sample, what is the composition of this? Whether there is a difference with the lunar samples retrieved by the American Apollo program in the last century and the lunar samples retrieved by Russia in the last century, it is necessary to know that the lunar surface geology of the landing of the mainland Chang'e 5 is very young.
Therefore, in accordance with the requirements of high-precision, multi-element and non-destructive analysis, many scientists on the mainland have carried out neutron activation analysis of lunar samples based on the foundation of pool heaps and micro-reactors.
Neutron activation analysis research is to first bombard the sample to be analyzed with neutrons, and then through nuclear reactions to make a variety of elements of which generate radionuclides, by measuring the energy and intensity of the characteristic rays emitted by these nuclides, qualitative and quantitative analysis of the corresponding elements, with its high sensitivity, high accuracy, non-destructive and multi-element simultaneous analysis.
Neutron activation analysis is the most advanced and widely used material composition analysis method in the world, and the mainland has long had this technology, which is most suitable for application on lunar samples.
Now, the first research results on the Chang'e-5 lunar soil samples have been released, and on March 17, march 17, the Institute of Nuclear Physics of the China National Nuclear Energy Institute of the Atomic Energy Institute published a research paper on the analysis of neutron activation in the Chang'e 5 lunar soil on the world's most authoritative website - the Journal of the American Chemical Society.
The paper pointed out that the Chang'e-5 lunar sample contains a total of more than 40 kinds of elements, trace elements, trace elements and main elements and the elements in the American Apollo lunar samples are very different, the difference is very large, and these elements have obvious correlations, there are rules to follow.
Therefore, the Chang'e 5 lunar soil sample has a strong research value for scientific research, speaking of which, I am afraid that American scientists will drool again, and the United States has long wanted it.
In July 2021, two scientists from the China University of Geosciences in Wuhan saw through a microscope that the chang'e 5 lunar samples were colorful in color, gray, black, orange, white, yellow, brown, gold, white is plagiosite, gray-black is pyroxene, yellow is olivine, and brown is glass, which is typical basalt.
In September 2021, mainland scientists analyzed fragments of CE5-B1 and CE5-B2 from the Chang'e 5 sample and found mineral components such as ilmenite, olivine, plagioclase, and clindryl, which are 1.963 billion years old, 1 billion years younger than the US samples.
All in all, the research results of mainland scientists on the chang'e 5 lunar sample have once again impressed the world, once again let us understand the complex geological composition of the lunar surface, once again deepened our understanding of the formation of the moon, and once again accelerated the pace of human beings entering the era of "space mining".
The earth will eventually run out of resources one day, and the "space mining" era will one day come, and the continent's research results on the moon will benefit all mankind, help human beings get rid of the dependence on the earth's resources in advance, to know that there is a future clean energy source helium-3 on the moon, which is the best fuel for nuclear fusion, which can produce huge energy, but will not release radiation.
The mainland and Russia plan to build permanent bases on the moon, one is to conduct various scientific experiments, the other is to be tested by various harsh and inferior space environments, and the third is to try to collect clean energy helium-3 and other minerals. In short, the continent's construction of a permanent base on the moon will help humanity get out of the earth and into the vaster space.
The first research results on the Chang'e 5 lunar soil sample were released, which greatly affected our country. Interesting and informative scientific content, please pay attention to the only WeChat public account: Interesting Exploration