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Thread: My fusion question

  1. #1 My fusion question 
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    If I could find a way to get two one ounce slugs of room temperature lithium metal to collide in a near vacuum ...
    What speed would I need to reach to create enough heat and pressure to achieve partial or complete fusion of said lithium?


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  3. #2  
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    What fusion reaction are you envisioning?


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  4. #3  
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  5. #4  
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    If I were to take 2 hemisphere slugs of deuterium that is coated in lithium 6 coated in deuterium that is also coated in a dense neutron reflector what speed would I have to make the deuterium cores collide to cause a large enough ignition of the cores to cause a subsequent outward bound chain reaction...
    I want to know to see if I can use this method in a Orion style propulsion device
    Kind of like a beefed up Daedalus spacecraft
    But without nuclear fallout
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  6. #5  
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    So in essence I am looking for a initial deuterium reaction to create neutron radiation to transmute the lithium 6 into tritum Wich is then blasted into the next deuterium shell to cause a deuterium tritum reaction Witch will breed even higher energy neutron radiation that can be used to breed more tritium and so one and so forth till you can reach sufficient yield to propel the craft off the ground
    Last edited by Sonicxfan83; March 4th, 2018 at 11:20 PM. Reason: Bad grammar
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  7. #6  
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    Quote Originally Posted by Sonicxfan83 View Post
    If I were to take 2 hemisphere slugs of deuterium that is coated in lithium 6 coated in deuterium that is also coated in a dense neutron reflector what speed would I have to make the deuterium cores collide to cause a large enough ignition of the cores to cause a subsequent outward bound chain reaction...
    I want to know to see if I can use this method in a Orion style propulsion device
    Kind of like a beefed up Daedalus spacecraft
    But without nuclear fallout
    The D-T reaction has a LOT of unwanted radiation in the form of high speed neutrons. These either hit air and slow down (releasing gamma radiation) or hit higher atomic number materials and transmute them into nuclear isotopes.
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  8. #7  
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    The blast plate for the Orion drive will be made of several inches of lead that will have a durable neutron reflective material
    The lead will absorb the gamma radiation and the Neutron reflector will deflected the neutron radiation away from the inhabited part of The super structure being launched into orbit
    In the case of transmuting the lead in the blast plate into a radioactive substance you can detach it and move it away from The Landing site or the craft itself while it's in orbit of the desired location for the superstructure
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  9. #8  
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    That's the only thing that has to be worried about is the irradiation of the land around the launch site
    However if you were to launch it on a island in the middle of the ocean the water will absorb the neutron radiation and the gamma radiation will not do much to the water the less you will only have to clean up the irradiated soil on the island itself as long as the island is remote enough
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  10. #9  
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    Lets do math.

    Deuterium fusion occurs at 10^6K or above. So for my own visualisation, 1.000.000K.

    1/2MV^2 = kinetic energy calculation. I will ignore mass because it is irrelevant. 1/2V^2 = cDT

    So... c is unknown... I need the specific heat for deuterium, in a plasma state, i think it is safe to assume that the energy needed until it reaches plasma is negligible..

    V is the actual unknown. DT = 1.000.000 roughly.

    (SQRT(cDT))*2=V

    Anyone can help? what is c?

    Edit: I found the value for hydrogen gas at 6000K. It is incorrect but i believe somewhat comparable to Deuterium. as 21 (kJ/(kg K)).. Again. i will try to ignore mass. which makes this a nonsense number. Joule/gram/k.. etc I will take number as is.

    (SQRT(21*1000000)*2)=9165(m/s). So both particles should hit eachother with this speed. And totally annihilate each-others speed.

    This number seems too low to me.. But even so, at this speed, no fusion will occur even if this was correct. As it would be the lowest possible speed necessary.
    Last edited by Zwolver; March 7th, 2018 at 04:23 AM.
    Growing up, i marveled at star-trek's science, and ignored the perfect society. Now, i try to ignore their science, and marvel at the society.

    Imagine, being able to create matter out of thin air, and not coming up with using drones for boarding hostile ships. Or using drones to defend your own ship. Heck, using drones to block energy attacks, counterattack or for surveillance. Unless, of course, they are nano-machines in your blood, which is a billion times more complex..
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