Here's the Neutronics Scoping Tool, which allows you to dial in a certain core height, radius, enrichment, and power rating and see if it will go critical and how long it will run. Then, it estimates the fuel LCOE, average discharge burnup, and a whole lot more. www.youtube.com/watch?v=GQzD...
Neutronics Scoping Tool demonstration
YouTube video by What is Nuclear?
www.youtube.com
June 28, 2025 at 6:04 PM
Here's the Neutronics Scoping Tool, which allows you to dial in a certain core height, radius, enrichment, and power rating and see if it will go critical and how long it will run. Then, it estimates the fuel LCOE, average discharge burnup, and a whole lot more. www.youtube.com/watch?v=GQzD...
Link to the tool: whatisnuclear.com/neutronics-s...
Neutronics Scoping Tool
Plug in your reactor type, size, and enrichment and get info about how much fuel you need, how long it will run, how much leakage there is, etc.
whatisnuclear.com
June 28, 2025 at 6:04 PM
Link to the tool: whatisnuclear.com/neutronics-s...
Also, I have my very nice fountain pen filled with Antique Copper ink. I’m gonna be fancy while being wise for the neutronics kids. They may know more about neutron interaction & imaging than I ever will, but it’s Time 2 Learn about product safety design for release into commerce.
February 18, 2025 at 9:58 PM
Also, I have my very nice fountain pen filled with Antique Copper ink. I’m gonna be fancy while being wise for the neutronics kids. They may know more about neutron interaction & imaging than I ever will, but it’s Time 2 Learn about product safety design for release into commerce.
As a penance I added CANDU to the scoping tool whatisnuclear.com/neutronics-s...
July 3, 2025 at 4:39 PM
As a penance I added CANDU to the scoping tool whatisnuclear.com/neutronics-s...
This spring I'm reviving Physics 306: Nuclear Physics and Technology. Everything from shell models to reactor neutronics. Last time (2021) we talked about AP1000s, ESBWRs, and doomed SMR startups. Times have changed! Would love advice about how to teach the latest fusion and SMR R&D. #nukesky ⚛️🎢
July 22, 2026 at 2:27 PM
This spring I'm reviving Physics 306: Nuclear Physics and Technology. Everything from shell models to reactor neutronics. Last time (2021) we talked about AP1000s, ESBWRs, and doomed SMR startups. Times have changed! Would love advice about how to teach the latest fusion and SMR R&D. #nukesky ⚛️🎢
Toss up between that and Reactor Core Neutronics. That shit was brutal.
November 22, 2024 at 4:13 AM
Toss up between that and Reactor Core Neutronics. That shit was brutal.
🔬✨ La UNED inaugura el 'Fusion Neutronics Meeting 2025', epicentro mundial de la neutrónica aplicada a la fusión nuclear 🌍⚛️
April 7, 2025 at 3:13 PM
🔬✨ La UNED inaugura el 'Fusion Neutronics Meeting 2025', epicentro mundial de la neutrónica aplicada a la fusión nuclear 🌍⚛️
Hey TRISO modelers, when you build a neutronics input with TRISO fuel, what are your favorite ways to set a given packing fraction without cutting off particles on the edge of your pebble or compact? Does everyone just write a packing script?
May 17, 2025 at 11:57 AM
Hey TRISO modelers, when you build a neutronics input with TRISO fuel, what are your favorite ways to set a given packing fraction without cutting off particles on the edge of your pebble or compact? Does everyone just write a packing script?
Special Issue on Fusion Neutronics
@americannuclear.bsky.social @tandfresearch.bsky.social www.tandfonline.com/doi/full/10....
@americannuclear.bsky.social @tandfresearch.bsky.social www.tandfonline.com/doi/full/10....
Special Issue on Fusion Neutronics
Published in Fusion Science and Technology (Vol. 82, No. 4, 2026)
www.tandfonline.com
April 2, 2026 at 8:56 AM
Special Issue on Fusion Neutronics
@americannuclear.bsky.social @tandfresearch.bsky.social www.tandfonline.com/doi/full/10....
@americannuclear.bsky.social @tandfresearch.bsky.social www.tandfonline.com/doi/full/10....
Furthermore, we in the Nordics do have a lot of nuclear expertise. For example, one of the things that stymied Taiwan's nuclear program for almost a decade were simulation codes required for detailed neutronics calculations.
Well... the most used neutronics code today is Finnish.
Well... the most used neutronics code today is Finnish.
January 11, 2026 at 9:14 AM
Furthermore, we in the Nordics do have a lot of nuclear expertise. For example, one of the things that stymied Taiwan's nuclear program for almost a decade were simulation codes required for detailed neutronics calculations.
Well... the most used neutronics code today is Finnish.
Well... the most used neutronics code today is Finnish.
It's nice that openmc has some utilities to help, so that's a good approach for openmc. But what about other neutronics tools? nbviewer.org/github/openm...
Notebook on nbviewer
Check out this Jupyter notebook!
nbviewer.org
May 17, 2025 at 11:57 AM
It's nice that openmc has some utilities to help, so that's a good approach for openmc. But what about other neutronics tools? nbviewer.org/github/openm...
RISO fuel and a compact design are built for a simpler safety case than large reactors need. Zero-power testing proves the neutronics work.
August 24, 2026 at 4:00 AM
RISO fuel and a compact design are built for a simpler safety case than large reactors need. Zero-power testing proves the neutronics work.
Many former bottlenecks like good neutronics codes and sufficient computing power (which stumped the Taiwanese program for years) don’t really apply in this case.
September 25, 2025 at 11:14 AM
Many former bottlenecks like good neutronics codes and sufficient computing power (which stumped the Taiwanese program for years) don’t really apply in this case.
DRAGON (neutronics) and OpenFOAM (thermal-hydraulics).
"Tightly coupled neutronics and thermal-hydraulics using open-source software." Wu, Hsingtzu. PhD dissertation. University of Illinois at Urbana-Champaign. 2013. #FOSS #OpenAccess
"Tightly coupled neutronics and thermal-hydraulics using open-source software." Wu, Hsingtzu. PhD dissertation. University of Illinois at Urbana-Champaign. 2013. #FOSS #OpenAccess
Tightly coupled neutronics and thermal-hydraulics using open-source software
|
IDEALS
hdl.handle.net
November 27, 2024 at 9:54 PM
DRAGON (neutronics) and OpenFOAM (thermal-hydraulics).
"Tightly coupled neutronics and thermal-hydraulics using open-source software." Wu, Hsingtzu. PhD dissertation. University of Illinois at Urbana-Champaign. 2013. #FOSS #OpenAccess
"Tightly coupled neutronics and thermal-hydraulics using open-source software." Wu, Hsingtzu. PhD dissertation. University of Illinois at Urbana-Champaign. 2013. #FOSS #OpenAccess
📖 Lee la noticia completa aquí: https://www.uned.es/universidad/inicio/noticias/mostrarnoticia?noticia=la-uned-inaugura-el-fusion-neutronics-meeting-2025-epicentro-mundial-de-la-neutronica-aplicada-a-la-fusion-nuclear
April 7, 2025 at 3:13 PM
Excited for Jake today! For those of you into Open Source neutronic modelling / nuclear fusion he’ll be presenting his poster at a conference at MIT ossfe.github.io/OSSFE_2025/j...
A Complete Open Source Workflow for CAD Based Reactor Neutronics with Unstructured Mesh Tallying - OSSFE conference 2025 - March 18th
ossfe.github.io
March 18, 2025 at 7:46 AM
Excited for Jake today! For those of you into Open Source neutronic modelling / nuclear fusion he’ll be presenting his poster at a conference at MIT ossfe.github.io/OSSFE_2025/j...
Un orgullo para nuestra universidad. La inauguración del Fusion Neutronics Meeting 2025 en la UNED representa un reconocimiento internacional al trabajo de nuestros investigadores en el ámbito de la fusión nuclear y la neutrónica computacional.
🔬✨ La UNED inaugura el 'Fusion Neutronics Meeting 2025', epicentro mundial de la neutrónica aplicada a la fusión nuclear 🌍⚛️
April 7, 2025 at 3:16 PM
Un orgullo para nuestra universidad. La inauguración del Fusion Neutronics Meeting 2025 en la UNED representa un reconocimiento internacional al trabajo de nuestros investigadores en el ámbito de la fusión nuclear y la neutrónica computacional.
conducted a test program nicknamed KRUSTY (Kilopower Reactor Using Stirling TechnologY). This test was a full-scale nuclear demonstration to verify the Kilopower reactor neutronics during startup, steady state, and transient operations in a space simulated 2/5 ntrs.nasa.gov/api/citation...
ntrs.nasa.gov
August 6, 2025 at 6:36 PM
conducted a test program nicknamed KRUSTY (Kilopower Reactor Using Stirling TechnologY). This test was a full-scale nuclear demonstration to verify the Kilopower reactor neutronics during startup, steady state, and transient operations in a space simulated 2/5 ntrs.nasa.gov/api/citation...
Tell that to the Japanese and Germans! There are major ICF companies in both countries and the momentum is only growing. I don’t think the NWS can tamp this one down.
But also yes, no one has proven our the TBR. TBF we haven’t had anything to try with either! I am worried about tokamak neutronics..
But also yes, no one has proven our the TBR. TBF we haven’t had anything to try with either! I am worried about tokamak neutronics..
January 13, 2026 at 5:24 AM
Tell that to the Japanese and Germans! There are major ICF companies in both countries and the momentum is only growing. I don’t think the NWS can tamp this one down.
But also yes, no one has proven our the TBR. TBF we haven’t had anything to try with either! I am worried about tokamak neutronics..
But also yes, no one has proven our the TBR. TBF we haven’t had anything to try with either! I am worried about tokamak neutronics..
Thorium has a long history partly because the fuel cycle and neutronics can be elegant on paper, but engineering and licensing are different problems.
August 19, 2026 at 10:01 AM
Thorium has a long history partly because the fuel cycle and neutronics can be elegant on paper, but engineering and licensing are different problems.
Reactor core neutronics borrows a lot from statistical thermodynamics. The neutron transport equation is based on the Boltzmann equation if I remember correctly.
November 22, 2024 at 4:30 AM
Reactor core neutronics borrows a lot from statistical thermodynamics. The neutron transport equation is based on the Boltzmann equation if I remember correctly.
Sarkar, Koneru, Gupta, George, Kuley, Ansumali, Kaushal: Magnetohydrodynamic equilibrium and neutronics study on MAST-U using Jenga framework https://arxiv.org/abs/2605.09913 https://arxiv.org/pdf/2605.09913 https://arxiv.org/html/2605.09913
May 12, 2026 at 6:58 AM
Sarkar, Koneru, Gupta, George, Kuley, Ansumali, Kaushal: Magnetohydrodynamic equilibrium and neutronics study on MAST-U using Jenga framework https://arxiv.org/abs/2605.09913 https://arxiv.org/pdf/2605.09913 https://arxiv.org/html/2605.09913
👋Meet our plenary speakers of #IMOH2026! Outstanding representatives from leading European research institutions in #NeutronScience.
📅 October 13-15, 2026
📌University of the Basque Country, Leioa (Spain)
📝 Submit your abstract before June 6!
🔗 imoh.eu
#MaterialsScience #HiCANS #Neutronics
📅 October 13-15, 2026
📌University of the Basque Country, Leioa (Spain)
📝 Submit your abstract before June 6!
🔗 imoh.eu
#MaterialsScience #HiCANS #Neutronics
April 21, 2026 at 9:02 AM
👋Meet our plenary speakers of #IMOH2026! Outstanding representatives from leading European research institutions in #NeutronScience.
📅 October 13-15, 2026
📌University of the Basque Country, Leioa (Spain)
📝 Submit your abstract before June 6!
🔗 imoh.eu
#MaterialsScience #HiCANS #Neutronics
📅 October 13-15, 2026
📌University of the Basque Country, Leioa (Spain)
📝 Submit your abstract before June 6!
🔗 imoh.eu
#MaterialsScience #HiCANS #Neutronics
Uuh, hello, new followers! I'm not on here a ton right now as I finish my PhD, but I do Monte Carlo neutronics modeling coupled with other stuff, with a bit of optimization thrown in. I also have 2 cats, play with the SCA sometimes, and do random other nerdy things.
November 13, 2024 at 11:56 PM
Uuh, hello, new followers! I'm not on here a ton right now as I finish my PhD, but I do Monte Carlo neutronics modeling coupled with other stuff, with a bit of optimization thrown in. I also have 2 cats, play with the SCA sometimes, and do random other nerdy things.