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Viewing 13 posts - 1 through 13 (of 13 total)
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  • Aquariumnerd
    Participant

    thanks 🙂 yeh i kind of remember the photoelectric effect and work fucntion stuff now from college i just forgot it quickly haha. 🙂

    in reply to: Are female scientists welcome here? #10379
    Aquariumnerd
    Participant

    sunny wrote:

    KSTAR? Are you in Korea, then?

    What are your duties there?

    washing up for the male scientist 😉 :p:p:p

    It is the other way around. They wash up for female scientists.
    only because they want them :p

    Aquariumnerd
    Participant

    Aquariumnerd wrote: im working on home fusion project. I just had an idea, The output of the crockford Walton voltage multiplier I’m building will carry about twenty ma at minus twenty kv. I want to measure the voltage. so if i use a five volt zener diode, i should be able to direct five volts through a circuit right. The excess currant flows through the diode. I will run a voltage to frequency converter, with a series low value resistor on the power bus. Converting te voltage to frequency to output through a tiny led to be picked up by an external circuit to convert the frequency to a voltage reading. I’m aware that corona from the circuit could destroy it but surely if i insulate the circuit with silicon sealant, it would be fine 😕 The only thing might be a surge in current form capacitors.
    The maximum heat dissipation of the diode will be only 0.1 watts, with five volts across it. So this sounds feasible :/

    I just realized i cant measure voltage like this. but i could measure current like this. This is because i don’t know the resistance in series, e.g. from the chamber or voltage.

    in reply to: Focus Fusion 1 on DVICE. #10291
    Aquariumnerd
    Participant

    digh wrote: Jamesr’s right they use the term neutron instead of proton to describe the process in the DVICE blog. Still they seem to get most of the broad brushstokes correct. More importantly its positive. Perhaps someone could respond to that issue and others (ERIC)? and we could get another blog out of them.

    maybe because a proton decays into a neutron or other way round, beta dacay :/

    Aquariumnerd
    Participant

    Breakable wrote:

    https://netfiles.uiuc.edu/mragheb/www/The Fusion Fission Hybrid Thorium Fuel Cycle Alternative.pdf

    Not much in here, but the idea itself is appealing to me.
    I believe in supporting a hybrid fusion-fission concept because would make it easier to get funding for fusion research and help it morph trough the chrysalis phase of the development. Same as the EV car development was helped by the hybrid concept.
    The drawback of this is that proliferation would be made easier, because neutron sources research would become more popular.
    But I think this is a small drawback, because in case fusion is developed it will be used for militarization in any case,
    so delaying the neutron sources research would just delay threat escalation of over-militarizing smaller rogue nations (such as NK) just for a little while.
    Dealing with those issues now does not depend on energy sources, but on the worldwide political process.

    Are you talking about nuclear bonbs. Sounds like it. The hydrogen bomb also used fission. The fision provides conditions for fusion. A chemical explosive creates a large force to smack the uranium plugs together basically. The uranium has a critical mass and undergoes fission. The huge energy output heats the hydrogen it contains ect. It was developed decades ago. I’m sure people have already considered this use of fission. But You would need a critical mass of thorium. Then you have many other issues. The fission its self would probably need tight control. For it to produce a temperature high enough for fusion, a nuclear bomb would be needed. The temperature in a nuclear reactor does not reach anything near millions of k lol.

    in reply to: Are female scientists welcome here? #10289
    Aquariumnerd
    Participant

    Brian H wrote: KSTAR? Are you in Korea, then?

    What are your duties there?

    washing up for the male scientist 😉 :p:p:p

    in reply to: Micro fusion #10288
    Aquariumnerd
    Participant

    rashidas wrote: Excuse my ignorance but is it possible to have miniature fusion? Just a few million atoms fusing together will provide all the energy needed for many applications. Any ideas?

    i remember from physics that the energy gain by the nuclei is independent of distance between electrodes because force* distance=E. But the decrease in the distance is proportional to the increase in force, as f=e*Q and since e=v/d, e increases in proportion to distance decrease. Think of it like the plates of a capacitor. Therefore, as f=qv/d and E=f*d, The d cancels when a simultaneous equation is solved. E=fqv so the energy gain is independent of distance between inner and outer grid of the plasma chamber. I would have thought that micro fusion is possible. It seems rather logical :/ Creating a small driver circuit wouldn’t be hard at all. I suppose the hydrogen could be sealed up in the fusion chamber. A vacuum implemented in the manufacturing process. The difficult thing is harvesting the energy.
    e=electric field strength.
    f=force,
    q-charge on nuclei, which is two electrons charge or near enough.
    E is energy.
    I’m sorry to see no one else bothered to answer. Some people are so rude.

    Aquariumnerd
    Participant

    thanks. I i find that very interesting :], what is it about the arrangement of electrons in the beryllium that means there is no or less photoelectric absorption, physics teacher never liked to talk about that. :/ and does the photoelectric absorption always result in the release of electromagnetic waves of a different wavelength :/ How broad would the range of wavelengths be released and what wavelength :/ For the home project i was thinking of something simple lol just to prove i am getting fusion. im getting closer, just ordered the microwave caps 😀

    Aquariumnerd
    Participant

    One more thing. I know this isn’t that relevant, but this is the lounge. If you don’t mind could everyone who is good at electronics post as many abbreviations like rss used on data sheets. and the meaning Its taking me ages to get good at reading them. If it where not for these abbreviations, i would probably be pro by now lolol.

    Aquariumnerd
    Participant

    thanks man. Could the xrays them self possibly used for imaging :/ With a number of sensors containing a photo phosphore and photo-diodes and collimator in-between etc or something :/ physics is all coming back to me :] Would the absorption by the walls be too much to produce a good image like this. Wouldn’t IR be cheaper anyway and better quality. Could someone explain to me, is the emittion of xrays anything like pair production, so i know its caused by the photoelectric effect but is there any way of pinpointing the virtual point at which the xray came from without a sensor all around the device :/ :/ Seems mad but just asking because it sounds possible. I just like to ask these things if u get me.

    Aquariumnerd
    Participant

    sorry keeps posting everything twice.

    Aquariumnerd
    Participant

    uploading pictures failed because of file size :/

    in reply to: My home project. #10274
    Aquariumnerd
    Participant

    Thanks. Yep i tried but it was very hard to get hold of one in the UK. all the ones on ebay are rated at 60hz and so running it would likely cause core saturation. I looked into converting mains with invertor ect but just wasnt worth it. I will look at the pics. Thanks.

Viewing 13 posts - 1 through 13 (of 13 total)