/r/fusion

Photograph via snooOG

Discussion and news on advancements in the field of nuclear fusion energy and related technologies.

Nuclear Fusion on Reddit

Focused on advancements in the field of nuclear fusion.

Submissions should be related to nuclear fusion or plasma physics as currently understood by the scientific community.


Nuclear fusion is a nuclear reaction in which two or more atomic nuclei collide together at a very high speed and form a new nucleus. For light elements like hydrogen or helium the fused nucleus weights less than the sum of the original nucleus. The missing mass is released as energy in accordance with Einstein's mass-energy equivalence equations. Fusion is the process that powers active or "main sequence" stars.

Primer on fusion power

Current mainstream approaches include:


Related:

/r/fusion

18,854 Subscribers

9

Nuclear Plasma Control with Digital Twin (7:11)

1 Comment
2024/02/10
09:58 UTC

4

NearStar Fusion A Simple and Viable Solution for Clean Energy 1

5 Comments
2024/02/10
07:31 UTC

18

First pictures of the large fused silca tubes for Polaris

14 Comments
2024/02/09
18:13 UTC

6

Thea Energy stellarator article

0 Comments
2024/02/08
23:35 UTC

13

How to get more knowledgeable about Fusion?

Hello everyone, I am a 18 year old student in germany and over the past year or two I have informed myself about the absolute basics of fusion via the internet. But I am aware that I only know absolute surface stuff and probably not even all of that and I would like to know more. Are there any good ways for an absolute beginner to get more information about Fusion? So far I've mostly found wayyyy to oversimplified sources that explain too little or sources that are far beyond my understanding.

5 Comments
2024/02/08
18:18 UTC

1

I got this idea rattling around my head for a while please help me out with science

I'd hate to make this long since it seems most likely that i just don't know something that would make this idea stupid.. Buuuuuuuuuuuut :D it's been rattling around my head for a while and i need to hear somebody give me good reasons why it wouldn't work. Just please, be honest and gentle xD

I've been watching this yt vid from Isaac Arthur
https://www.youtube.com/watch?v=ChTJHEdf6yM

and under mechanism part 4:02 he starts going into rare quantum results that happen with diprotons which made me think.

If our fusion reactors can achieve higher temp then the sun and also don't cross the coulomb barrier then isn't there something else in effect as to how to increase the % success rate?

So here is the part that's been rattling in the old dust box:
To try to use quantum entanglement to boost the chance of that quantum result?

A bunch of lasers all around the fusion chamber that would hit the plasma field to try to increase that success rate?

Dunno.. Obviously i'm not a physicist :( just had to ask somebody who knows more about the topic.

p.s. forgive the spelling and amateurishness and all the other mistakes i surely made along the way in my haste to unrattle the dust bin

2 Comments
2024/02/08
16:34 UTC

13

OMEGA direct drive laser achieves fusion fuel hotspot gain and beats JET for second highest DT triple product

4 Comments
2024/02/08
15:33 UTC

0

Heat release from a fusion containment failure

As the title states, what would the effects be both local and further away in the event of a containment failure on a fusion reactor? Would that effect ozone or atmosphere, potential for warminbthe planet rapidly?

3 Comments
2024/02/08
15:31 UTC

0 Comments
2024/02/08
15:01 UTC

31 Comments
2024/02/08
14:28 UTC

0

Why doesn’t Elon set aside like $2 billion/year for fusion research?

36 Comments
2024/02/08
12:10 UTC

6

Fusion News, February 7, 2024 (9:09)

2 Comments
2024/02/08
10:01 UTC

4

Insurer doesn't want Fusion - and important talks in EU ahead

Yesterday I learned in a web meeting, that one insurance plans not to insure fusion plants, obviously confusing them with fission plants, which have a totally different, much higher risk and hazard level. Andrew Holland with FIA wants to discuss this of course. - And in March there will be important talks of FIA and EU fusion organizations Fusion for Energy and EuroFusion regarding PPP constructs for fusion.

9 Comments
2024/02/08
09:46 UTC

7

Hey, starting a Nuclear Energy Newsletter – wanna join?

Hey r/fusion

Starting a “weekly” newsletter about Nuclear Energy. 

Go to http://nuclearupdate.com to join the newsletter.

(No spam ever! I promise)

Love you,

bengtoskar

3 Comments
2024/02/07
12:07 UTC

14

Plasma Fusion Scientists, got time for a few questions about AI from a student?

Hey everyone. I apologize if this is not the type of post that you normally see on this subreddit, but I could use some help and I'm OK if it costs me some karma.

I am working towards my associates in Physics, on my way to getting my PhD in Plasma Fusion. I'm currently in a technical writing class and our quarter-long project is a three part essay on what we'll be doing after we graduate: part one is a background essay explaining the area of research and its history, part two is a literary review summarizing and discussing the existing research that has been done on the area of research, and part three is a business use case that describes how the area of research will positively affect the industry or field of study.

The thing is, my first essay came out at 85% because I missed one of the explicit requirements. I realize that was a total miss on my part. So, to boost my grade I was hoping to get extra credit by doing an interview with someone in this field.

If you work in plasma fusion research and have time to answer a few questions about what you do, it would mean the world. DM me and I can send you my LinkedIn to confirm my identity, if you want.

I've written my questions below:

  1. Do you see AI/machine learning helping us to get closer to using plasma fusion energy for safe renewable power?
  2. What are the biggest hurdles in combining AI with plasma fusion experiments?
  3. Can AI accurately predict issues in fusion reactors before they happen? If yes, how can it be improved?
  4. How important is AI for controlling fusion reactors?
  5. Is it important for scientists to understand how AI models make predictions in fusion research?
  6. Do we use AI to study plasma? If yes, then can you offer a couple challenges that you see that need to be overcome?
  7. Do you have AI subject matter experts that work with you? If yes, then can you describe their role in the research process?
  8. Can you speak to the cost that collecting data plasma fusion experiments?

Thank you for your time.

11 Comments
2024/02/07
07:42 UTC

8

Internship with CFS / Career in Fusion with Economics Degree

I am currently interviewing for a senior year summer internship with CFS as a business analyst and although I know some about fusion and Helion vs CFS etc, I am concerned about the future of careers in fusion, specifically business roles.

I am very interested in development positions relating to renewable energy (solar, wind, storage) and already have a few offers for this summer for development positions. But now that I've started interviewing with CFS, I've become more interested in fusion. My main concern is the long-term viability of fusion and if I would pigeonhole myself by going straight into fusion out of college (even with how prestigious CFS is). I am mainly interested in project management but commercially viable fusion may never happen and if it does its 2030 at the earliest right?

Weighing these options, what do you all think? (yes I realize I don't even have an offer from CFS yet, just trying to gauge possibilities)

3 Comments
2024/02/06
20:39 UTC

9 Comments
2024/02/05
22:00 UTC

8

Will NSTX-U ever be fixed?

I thought they were supposed to be done upgrading a decade ago. How come they’re still fixing it? Or are they going to replace it instead with something more up-to-date like with HTS coils/etc?

10 Comments
2024/02/05
16:37 UTC

11

Areas to contribute?

I'm quite interested in contributing to the field and learning more about the topic. Where could I as a software developer contribute and is development of the field more concentrated in some geographical areas?

7 Comments
2024/02/04
07:35 UTC

0

Why not warm fusion. Cutaway into the microwave and hydrogen fuel cavity showing a metasurface reactor and heat exchange tube. #metasurface #nuclearfusion

26 Comments
2024/02/03
11:14 UTC

6

Avalanche Energy Technical Talk on Orbitrons at Canadian Workshop on Fusion Energy (CWFEST 2023)

0 Comments
2024/02/02
06:22 UTC

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