Recent content by Toast

The pseudo-material method modifies the MCNP material card in the MCNP input file. One would change the number density of the entries to reach an approximate mixture of materials with the same cross section as the desired material. Eg if you wanted Lithium at 500 degrees and only had cross...

Looks like the energy is shared between the products inversely proportional to their mass

Nuclear engineers don't have to just work on fission plants, they are hand in particle accelerators, submarines, hospitals, decommissioning, fusion research etc. Computing with engineering is a great combination and modern engineering is getting increasingly high tech, you could end up in...

it is per simulation source particle You should multiply it by the real world source strength. For example in a fusion reactor you might get 1e21 neutrons per second , so you would take the tally results and multiply it be 1e21 neutrons to get using of MeV per gram I typically go a little...

You will need some more equations to work out the number of scatters required Try this book by the DOE http://energy.gov/sites/prod/files/2013/06/f2/h1019v1.pdf It has a section on neutron moderation (page 23) and gives you the scattering equations you will need Are you allowed to use cross...

Fusion research has was originally carried out in secret by individual nations. However it was realized that separate nations were coming across the same problems and decided to join forces to make better progress on the common challenges. Declassification of fusion research happen in the 1958...

Yep good point you could lobby the government to divert money from ITER to your own program. I believe the US has government reviews fairly often to see if they still want to stay involved. http://www.firefusionpower.org/ Out of interest where would you rather see the money spent? Or perhaps...

Not all the R&D has been turned over to ITER. There is loads of non ITER related fusion R&D going on However if you are not happy with the distribution of funding you could start up your own fusion research company and compete for funding like these people did http://www.tokamakenergy.co.uk/...

Hi there Try this website for plotting and retrieving nuclear data http://jshimwell.com/ it is really easy to use It has ENDF data (QuantumPion is correct ENDF does not currently contain Os data) like most other sites The website also has other evaluations like EAF JEFF JENDL TALYS which do...

Hi there I have carried out a little activation analysis of fusion reactors. It is a fascinating subject To minimize activation in DT fusion devices advanced lo activation materials have been developed. Eurofer is an example of a modified steel that doesn't get activated as much as regular...

Roadmaps to achieving commercial fusion have been published. The plan in Europe is to build a large Demonstration power plant (DEMO) device extrapolated from ITER https://www.euro-fusion.org/wpcms/wp-content/uploads/2013/01/JG12.356-web.pdf Other ideas include smaller more compact spheromaks...

The date for first burning DT plasma is currently scheduled for 2032-2035 (most recent scheduled released in April 2016) However prior to this date there will be many other plasma experiments including DD and DT with different ratios Technically one could hang a light build in ITER now and...

People seam to obsess a little bit with physics being a "hard" subject, at least this is what most people tell me when they find out that I'm a physicist. I wouldn't let the perceived difficulty of physics put you off studying it. If you like the subject, are curious about how things work want...

Thanks very much for the answers. I just want to enrich one isotope at a time. So if I've understood correctly is my following example correct? For 1kg of P (product) enriched from a natural enrichment level of W183 = 14.31% up to 80% with a F (feed) of 50kg at the natural enrichment...

Dear all I'm trying to find the separative work units (SWU) required to enrich isotopically Tungsten. I've come across the SWU equation (http://www.fas.org/programs/ssp/nukes/effects/swu.html) SWU = P·V(Np) + W·V(Nw) – F·V(Nf) where V(x)=(2x-1)ln(x/(1-x)) and x is the...