Re: Inside Out Thermo Nuke

'sharp@xxxxxxxxxxx' wrote, in part:
| No matter what kind of reflection or collimation might occur, if the
| mechanism of thermal radiation diffusion will distribute the energy
| evenly in the time frame involved, any other mechanism is unnecessary
| and therefore irrelevant.

The high Z case IS opaque.

Consider the geometry, especially of the device used in 'Mike', since the
cylinder (tamper/LD/sparkplug) was so large.
* The cylinder of fusion fuel is of a larger diameter than the imploded
core.
* The x-rays MUST be delivered prior to the expansion shockwave.
THUS
* The x-rays can ONLY be delivered down the radiation channel by
reflection, sort of a reverse x-ray telescope.

The reference
https://netfiles.uiuc.edu/mragheb/www/NucE302/Nuclear%20World.pdf
implies such an arrangement.

This also implies an arrangement for much smaller thermonuclear devices.

I also can't remember if Richard Rhodes used the term hohlraum in "Black
Sun".

Phil Weldon

<sharp@xxxxxxxxxxx> wrote in message
news:1122073815.040162.46410@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Actually, I don't recall seeing what you are calling the 'folklore'
> description of how the radiation channel operates. It has been a while
> since I read Rhodes, but I thought he used the term hohlraum, which is
> a technical term which indicates how it works. Some popular
> descriptions might refer to reflection of the X-rays, but that is
> presumably just a simplified way of describing the absorption and
> re-emission. I have seen the misconception that the compression is
> caused by expansion of the foam filler, but that is a separate issue.
>
> Opacity of the channel longitudinally should be low. The foam filler
> is made up of hydrogen and carbon. The carbon will be fully ionized at
> around 5.7 million K, after which it should be almost transparent to
> the X-rays.
>
> No matter what kind of reflection or collimation might occur, if the
> mechanism of thermal radiation diffusion will distribute the energy
> evenly in the time frame involved, any other mechanism is unnecessary
> and therefore irrelevant.
>


.

Relevant Pages

  • Re: The Rest of the Story
    ... reflected power is dissipated in the source resistor. ... the arrival of the reflected wave. ... the source resistor dissipates 0.01523 J of energy. ... the source resistor dissipation with no reflection ...
    (rec.radio.amateur.antenna)
  • Re: The Rest of the Story
    ... - before the reflection arrives back at the generator, ... the reflected wave has an energy flow of Y watts. ... dissipated in the source resistor. ... increasing the dissipation in the source resistor, ...
    (rec.radio.amateur.antenna)
  • Re: Analyzing Stub Matching with Reflection Coefficients
    ... You should work on this generator since it would really help ... amount of reflection at the generator ... ... Pfor is not zero. ... no energy flowing. ...
    (rec.radio.amateur.antenna)
  • Re: Experiment#1
    ... then it means that the energy of the light beam is either lost ... photons strike will gain some energy,which means the mirrors will have ... I'm not an expert on the exact formulation of reflection but I think I can ...
    (sci.physics)
  • Re: The Extreme Failure of Poor Concepts in Discussing Thin Layer ...
    ... So what does cause the reflection of reflected energy ... > that wave cancellation of RF waves can cause reflections in exactly ... > the effect should be considered as a redistribution of light waves and ...
    (rec.radio.amateur.antenna)