There are already 4 generations of nuclear fission reactors. (Compare https://en.wikipedia.org/wiki/Nuclear_reactor#By_generation.)
However among these, there does not seem to be a (maximum) safe nuclear fission reactor design, which immediately stops the nuclear chain reaction when the reactor...
Indeed, the list of nuclear propulsion designs in https://en.wikipedia.org/wiki/Nuclear_propulsion#Spacecraft is very interesting. However, a lot of these concepts are already pretty old (from right after WW2).
It would be interesting to have some kind of pre-screening scheme to evaluate them...
This xrf-setup sounds pretty perfect to me. Among others I have got a little 99,99% palladium bar, which I could use for it. The wavelength of Pd is statet 0.05859 nm in https://en.wikipedia.org/wiki/X-ray_fluorescence.
So are there special requirements for an xrf-tube?
Are there complete...
mfb and rive, you have mentioned very good points. Also infrared radiation could be brought into distinct direction by mirroring and thus generate thrust.
However this approach might be more tricky than the beta-negative isotope design, because beta radiation passes through a thin encasing that...
Thank you gleem!
However, the law situation for radioactive experimental source is terrrible in my country. Effectively it seems like everyone has a different opinion of what is allowed and what is not allowed. Last but not experimental source are much more expensive in Europe.
Is there a...
If I am allowed to repeat my first question, that has not been answered yet:
What is the more common label for "my" more or less obvious light-space-drive design? Nuclear powered direct photon drive? However, I do find anything in Google and it is not listed in...
Thanks for your calculations gleem! As far I could reproduce your calculations, they seem to be correct. Only wikipedia states 0.51 MeV for Cesium-137 beta-decay. (Other common medium lilfe isotopes like Strontium-90 or Cobalt-60 are in the same range, thus would not produce significantly more...
As notation in frequency does not seem to be self-explicating, I did some research for Geiger check sources myself.
Which of these geiger check sources on Ebay do you recommend for the calibration of my NaI(Tl) scintillator?
One of the main issues to send orbiters to (light years) faraway locations is the propulsion problem. Conventional chemical fuels cannot provide enough energy by weight to produce that much thrust.
Nuclear fission provides a lot of energy by weight, but usually radiation energy doe not produce...
I need one or more known and pure frequency signals for the calibration, so that I can map the electrical output signal of scintillator to them. The calibration signals could be either be gamma or x-ray. Ideally I need one gamma ray and one x-ray signal as calibration signals.
Hello!
I've got an gamma/x-ray NaI(Tl) Scintillator. It has a positive going signal design (Hamamatsu photomultiplier tube plus preamplifier).
I want to acquire its raw signal by a 250 MHZ digital oscilloscope and to process the signal myself using scientific programming.
What are the options...
Someone told me, that
nuclear fusion is overvalued anyway, as it were neutron rich, thus also producing radioactive contamination of the fusion reactor.
the really missing thing for a clean nuclear power technology would be some kind of "nuclear radiation to electrical energy converter"...
You are absolutely right - from the scientific point of view. Especially, as it would be magnitudes too much work to disprove any claimed theory.
However, the case of the Lockheed Martin compact fusion reactor is difficult. These guys are most probably working under militarily classified...