There are many laboratories that work on solutions for the Kessler syndrome, where there are so much rubble in the low orbit that rockets are no longer able to reach them without being put into operation with hyperchic parts. Although we have not yet come to the point where we have lost access to space, a day will come when we will do anything about it. A new work by Kazunori Takahashi from Tohoku University in Japan deals with a new solution in which a kind of magnetic field is used, which are typically visible in fusion reactors to slow down debris with a plasma beam while balancing with the same and opposite thrust on the other side.
The researchers have worked on two main categories of systems for the type of deorbantating work that may be contacted with Kessler syndrome and not. Contact systems are physically contacted with the ruins, such as through a network or a grappling hook, and slow down the debris to a point where you can safely deorbodify. This method faces the challenge that most rubble turns uncontrollably and possibly destroy the satellite, who tries to contact with it if it moves unexpectedly – which the problem instead of solving it.
Therefore, contacts are not forms in the field, since a system that another satellite is de -grated, remains a few meters away and at the same time affects its speed. Usually they use systems such as lasers, ion rays or in the case of Dr. Takahashi’s invention plasma rays to slow down your intended goal to a point where it can be de -gray.
https://www.youtube.com/watch?v=dft7-ynsabc
Fraser discusses how to use the Kessler syndrome with Dr. Moriba Jah avoids
The problem with deorbibining systems based on plasma beam base is the third law of Newton -since the plasma is directed towards the goal, it drives the operational system from the one that is no longer existing and essentially acts as a small plasma thrust. If the distance between the two increases, the slowdown effect of the plasma decreases. To solve this problem, Dr. Takahashi together with Christine Charles, Rod Boswell and Akira Ando in 2018, a bi-drictional engine that counteracted the pressure power of the plasma, which slowly slowed the goal with the same strength in the opposite direction and enable it to keep its position.
In this original paper, however, the thrust was too weak to effectively impair some of the larger potential goals for such a mission. So Dr. Takahashi to improve design by implementing a “CUSP” type. These are typically used in fusion reactors to ensure that the plasma does not interact with the wall of the magnetic chamber. The “heights” of a field is a point at which two opposing magnetic fields meet and cancel, which leads to a quick change in the change of direction for the forces they are used. Ideally, this leads to a stronger plasma beam.
That happened when Dr. Takahashi has set up an experiment to test the new CUSP system with the previous “Straight-Field” system that had proven to be too weak. It was an improvement in force by 20%, which was exercised on the target plasma thrust, which led to a 17.1 -Mn printing on the same level of performance. When he increased the level of performance to 5 kW (compared to 3 in the original test), it showed an improved delay of around 25 mn, which is approaching the level of 30 mn, which is expected to slow down a 1 -ton debris in 100 days. It also had the additional advantage of using Argon as a fuel, which is cheaper compared to the Xenon, which is normally used for plasmakielers.
https://www.youtube.com/watch?v=d9jf41w1chi
Fraser discusses the difficulties of keeping satellites in orbit properly.
Despite this success, there is still a lot to do before this becomes a fully equipped system. The experiment was carried out in a vacuum chamber, whereby the plasma thrust was only 30 cm away from the finish, compared to the measuring devices that would be necessary in a real orbital environment. In fact, the rubble goal will also move compared to the deorbantating system if it slows down. Therefore, it must take up a balance between maintaining distance from a slowdown object and the further abandoning beam. And finally there is a disadvantage that it literally uses twice as much fuel as other solutions for which no engines are required.
With all of this, every new solution for this potentially catastrophic problem is welcome, and Dr. Takahashi will probably continue to work on the development of this prototype. One day you might even be able to observe a double throat plasma engine with a large piece of space scrap.
Learn more:
University of Tohoku – Improved drive system can help remove room remains without contact
K. Takahashi-bidirectional high-frequency plasma thrust of the type BIS control for contactless active space waste
Ut – orbital debris get out of control
Ut – a new method to capture high -resolution images of space waste
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