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NIF

Started by John Larkin July 17, 2012
http://www.theregister.co.uk/2012/07/16/nif_passes_500_trillion_watts/


-- 

John Larkin                  Highland Technology Inc
www.highlandtechnology.com   jlarkin at highlandtechnology dot com   

Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
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VME  analog, thermocouple, LVDT, synchro, tachometer
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John Larkin <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

> > http://www.theregister.co.uk/2012/07/16/nif_passes_500_trillion_watts/
hype. What counts is the energy: 1.85 megajoules. Gasoline is about 35 MJ/L, so that's 1.85/35 = 5.28e-2l, or about 52.8ml. 52.8 ml = 3.57 tablespoons. "http://www.convertaz.com/convert-ml-to-tablespoon-%28u.s.-customary%29/" NIF is often described as a promising new source of energy. That is very unlikely to happen. Regards, Mike
On Mon, 16 Jul 2012 20:27:14 -0700, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

> >http://www.theregister.co.uk/2012/07/16/nif_passes_500_trillion_watts/
Is that like "passing gas" ?:-) ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
Well, it's rather trivial to get more than 1.85 MJ from a shot of fusion, 
for any macroscopic quantity of material.  The equivalent volume of gasoline 
has no bearing on overall system efficiency.

Try a well reasoned criticism instead.

Tim

-- 
Deep Friar: a very philosophical monk.
Website: http://webpages.charter.net/dawill/tmoranwms

"Mike" <spam@me.not> wrote in message 
news:XnsA092F1B04B91Eidtokenpost@69.16.185.247...
> John Larkin <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote: > >> >> http://www.theregister.co.uk/2012/07/16/nif_passes_500_trillion_watts/ > > hype. What counts is the energy: 1.85 megajoules. > > Gasoline is about 35 MJ/L, so that's 1.85/35 = 5.28e-2l, or about 52.8ml. > > 52.8 ml = 3.57 tablespoons. > > "http://www.convertaz.com/convert-ml-to-tablespoon-%28u.s.-customary%29/" > > NIF is often described as a promising new source of energy. That is very > unlikely to happen. > > Regards, > > Mike
On 17/07/2012 1:45 PM, Mike wrote:
> John Larkin <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote: > >> >> http://www.theregister.co.uk/2012/07/16/nif_passes_500_trillion_watts/ > > hype. What counts is the energy: 1.85 megajoules. > > Gasoline is about 35 MJ/L, so that's 1.85/35 = 5.28e-2l, or about 52.8ml. > > 52.8 ml = 3.57 tablespoons. > > "http://www.convertaz.com/convert-ml-to-tablespoon-%28u.s.-customary%29/" > > NIF is often described as a promising new source of energy. That is very > unlikely to happen. > > Regards, > > Mike
Something's not right, where did the rest of the 500TW go? 500TW = 500TJ/sec, but no mention of the LASER pulse duration... 1.85MJ out is an awful efficiency, unless that was *per* LASER (192 of them = 355.2MJ ~= 11L of petrol), but still many orders of magnitude less energy out than was put in? *confused* ! Chris.
"Chris

> >>> http://www.theregister.co.uk/2012/07/16/nif_passes_500_trillion_watts/ >> > > Something's not right, where did the rest of the 500TW go? > > 500TW = 500TJ/sec, but no mention of the LASER pulse duration...
** Power = 500 exp 12 watts Energy = 1.85 exp 6 joules Pulse duration = 3.7 exp -9 seconds
> 1.85MJ out is an awful efficiency,
** There is no way to know the efficiency from the data given in the story. ... Phil
"Chris" <c@b.a> wrote in message 
news:wI5Nr.549$Oq4.439@viwinnwfe02.internal.bigpond.com...
> On 17/07/2012 1:45 PM, Mike wrote: >> John Larkin <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote: >> >>> >>> http://www.theregister.co.uk/2012/07/16/nif_passes_500_trillion_watts/ >> >> hype. What counts is the energy: 1.85 megajoules. >> >> Gasoline is about 35 MJ/L, so that's 1.85/35 = 5.28e-2l, or about 52.8ml. >> >> 52.8 ml = 3.57 tablespoons. >> >> "http://www.convertaz.com/convert-ml-to-tablespoon-%28u.s.-customary%29/" >> >> NIF is often described as a promising new source of energy. That is very >> unlikely to happen. >> >> Regards, >> >> Mike > > Something's not right, where did the rest of the 500TW go? > > 500TW = 500TJ/sec, but no mention of the LASER pulse duration...
Assuming evenly distributed energy, isn't it along the lines of: P = 500TW = 500TJ/sec E = 1.85MJ t = 1.85MJ / 500TW = 3.7nS
> > 1.85MJ out is an awful efficiency, unless that was *per* LASER (192 of > them = 355.2MJ ~= 11L of petrol), but still many orders of magnitude less > energy out than was put in? > > *confused* ! > > Chris.
"Dennis"


> Assuming evenly distributed energy, isn't it along the lines of: > > P = 500TW = 500TJ/sec > E = 1.85MJ > > t = 1.85MJ / 500TW = 3.7nS
** Is there a bad echo in here - or is he simply backing me up ? .... Phil
On Mon, 16 Jul 2012 20:27:14 -0700, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

> >http://www.theregister.co.uk/2012/07/16/nif_passes_500_trillion_watts/
ZZZzapety-doo-da. Very precise zappety-doo-da.
On Tue, 17 Jul 2012 14:18:37 +1000, Chris <c@b.a> wrote:

>*confused* ! > >Chris.
Read it again then, dufus.