RE: [TCML] Bremsstrahlung radiation - Thread closed

["Lau, Gary" <Gary.Lau@xxxxxx>]

Unless this discussion can be brought back to something involving the word "Tesla", let's consider this thread to be closed.

Thanks, Gary Lau
TCML co-moderator

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Chris Rutherford
> Sent: Thursday, January 07, 2010 11:36 AM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Bremsstrahlung radiation
> 
> Hi Jim,
> 
> Thanks for the response, its seems  magnetic energy storage is
> becoming viable, far fewer losses...
> 
> http://en.wikipedia.org/wiki/Superconducting_magnetic_energy_storage
> 
> Thanks
> 
> Chris
> 
> On Thu, Jan 7, 2010 at 4:11 PM, jimlux <jimlux@xxxxxxxxxxxxx> wrote:
> > Chris Rutherford wrote:
> >>
> >> Hi All,
> >>
> >> Just to add a little more context to my question (at the risk of going
> >> off topic)...  I was thinking about using highly accelerated heavy
> >> ions trapped in a circular orbit as a means of storing energy (in case
> >> I wanted to use my Tesla coil where no good power supply was
> >> available).  I discovered that if I did manage to store the energy I
> >> required, then this would be dissipated as Bremsstrahlung radiation.
> >> However I have been thinking that it may be possible to capture this
> >> energy and then re-use it to accelerate the ions again, thus
> >> re-cycling the energy, allowing the system to hold its 'charge' for
> >> longer.  In order to utilize the energy stored in the system for
> >> driving my Tesla coil, instead of recycling the Bremsstrahlung
> >> radiation for accelerating ions it could be converted in to electrical
> >> energy.  What do you think?  Could this work?  Is there a good way of
> >> converting x-rays in to electricity?  Any idea on the radius per a
> >> given storage capacity KWh? :)
> >>
> >> Thanks
> >>
> >> Chris
> >
> > Getting perilously close to perpetual motion machines here.
> > Quick answer, no, it cannot work, at least in any practical sense.
> >
> > Orbiting the ions requires a magnetic field, which requires some energy to
> > make, and if you use superconducting magnets, you need energy to keep the
> > magnets cold.
> >
> > The bremsstrahlung radiates in all directions, so you'd need to capture it
> > and convert it to some other convenient form.  So far, nobody has an
> > efficient way to convert energetic photons (which is what that radiation is)
> > into electricity.  multijunction solar cells are the ultimate today in doing
> > this and they're on the order of 30% efficient, but are optimized for
> > visible light photons.  Xray detectors are MUCH worse (you'll see quantum
> > efficiencies of 0.05, for instance, and that's without accounting for any of
> > the electrical losses, and for single photons, for the most part)
> >
> > Sure, you can absorb that energy and turn it into heat, and then turn the
> > heat into electricity, but then, you're working against the maximum Carnot
> > efficiency, which is a function of the hot and cold temperatures.  And, of
> > course, any practical scheme for turning heat into electricity has losses on
> > top...
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