Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Jeroen Belleman <jeroen@nospam.please>
Newsgroups: sci.electronics.design
Subject: Re: New fusion power system test creates 300,000 degrees C plasma
Date: Fri, 29 Nov 2024 20:51:22 +0100
Organization: A noiseless patient Spider
Lines: 50
Message-ID: <vid5og$17b08$1@dont-email.me>
References: <vicdtb$62j1$1@solani.org> <vici9s$13umg$1@dont-email.me>
 <vicmgh$j28b$1@solani.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Fri, 29 Nov 2024 20:47:29 +0100 (CET)
Injection-Info: dont-email.me; posting-host="d08feeff0bdc2cdd349bfd2a7fcf842d";
	logging-data="1289224"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/UDT+BZIYEYAfNhCJWNoD1"
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.13.0
Cancel-Lock: sha1:B+jz3hCy1WZB7QDlpG/aerEFeHM=
In-Reply-To: <vicmgh$j28b$1@solani.org>
Content-Language: en-US
Bytes: 3125

On 11/29/24 16:27, Jan Panteltje wrote:
> On a sunny day (Sat, 30 Nov 2024 01:15:15 +1100) it happened Bill Slowman
> <bill.sloman@ieee.org> wrote in <vici9s$13umg$1@dont-email.me>:
> 
>> On 30/11/2024 12:00 am, Jan Panteltje wrote:
>>> A nuclear fusion startup just reached a milestone
>>> in its bid to commercialize unlimited clean energy :
>>>    https://edition.cnn.com/2024/11/29/climate/nuclear-fusion-openstar/index.html
>>>
>>> ITER inside out :-)
>>
>> You really can't read, can you. It's got its plasma to 300,000 degrees
>> K, and ITER have got theirs to 150,000,000 degrees K, about 500 times
>> hotter. It maybe some kind of milestone for OpenStar, but they've got
>> lot of milestones to go before they'll have a product that they can sell.
>>
>> And they are still trying to fuse hydrogen or deuterium, which produces
>> a lot of neutrons.
>>
>> https://hb11.energy/
> 
> Looks a bit like that thing Larking was making stuff for, laser ignition
> Not much coming from that at all.
> Just playing stuff for kids/ training stuff for aspiring nuclear fishisicks..
> That was discussed here last year or so.
> 
>> is trying to fuse hydrogen and boron, which doesn't produce neutrons -
>> if the machine ever works it will last a whole lot longer than hydrogen
>> fusion machines, which will be damaged by the stray neutrons they
>> produce, if they ever work.
> 
> Would be nice to have small portable power sources, for in the home and cars etc etc.

> Plutonium is dangerous, but the Viking spacecraft are still working after many decades.
> [...]

It would be lovely to have 50kWTh or so of PU238 in the basement,
if it could be made cheaply enough. Power for a lifetime for the
whole house and then some.

238Pu and its decay daughters are predominantly alpha emitters,
which is easy to contain. An important problem would be to make
it fool-proof: Not an easy task. I wouldn't want it in a car,
for example.

Jeroen Belleman