Recent content by oksuz_

Thanks! I missed that part. Can you tell quantitatively what is the fraction of the interaction level that comes from the EM force compared to the strong force?

In the macroscopic world, ordinary elastic scattering is governed by the electromagnetic force. Since neutron is an uncharged particle, it cannot be the electromagnetic force. It cannot the gravitational force either. It should be either the strong or weak nuclear force. So, which one?

Thanks mfb, Do you have any resources in mind that you can suggest to me about the theory behind these interactions? I want to get some theoretical understanding of calculating these reactions' interaction cross-sections.

Hi, Which force does govern the neutron elastic scattering and capture reactions? It seems to me it is the strong nuclear force, but I am not sure about that.Thanks.

I am confused. The source below says that it is a fundamental particle, discovered 30 years ago. https://home.cern/news/news/experiments/w-boson-published-30-years-ago And, I still do not quite understand why its mass is huge compared to the decay product. Thanks.

In Beta+ decay, a W+ boson is created and it decays into positron and electron neutrino. Mass of W+ boson is ~ 80 GeV/c^2, however, the total mass of positron and electron neutrino is very small compared to it. So, what happens to the rest of the mass? Is it converted into kinetic energy of...

Not yet. I am working on it. Thanks.

I am already using this feature. Still, it takes quite a long time.

I did not try it since a big plane source would not be suitable for a real-world scenario (at least mine). The source will eventually be a neutron generator. It is going to provide a cone beam with proper shielding. But I can give it a try.

I tried rectangular parallelepiped, however, the time that it takes for the simulation to complete was pretty much the same with when a sphere was used. Even it was a little bit longer (I do not know why). I tried cone beam instead of a point source. The number of neutrons reaching the...

Hi, I did an MCNP simulation to see the neutron energy deposition in water. I used 14-MeV neutrons, and big enough water body to make sure all the neutrons stay in the water and give all their energies to water. I used F6 tally. However, I got energy deposition of around 10.3 MeV, not 14 MEV...

It is kind of a real-world scenario. So, I do not want to change the dimension of the geometry so much. There are three cells whose importance must be 1. Otherwise, MCNP gives an error. Please see the input file below.

I am using 14-MeV neutrons. You can see the simplified set-up below. Both the object and the detector contain Hydrogen and Carbon. As for the reactions, I am assuming all possible reactions inside the object. However, radiography tally is tallying neutron flux. So, I am not sure if every...

It is MCNP 6. I have been referring to the user manual version6.2, however, I could not locate the leakage in volume part in it. Could you elaborate this part a little bit more? Thank you in advance.

Hi, I have been doing some simulation with MCNP. They take a long time. I think there is a way to ignore some particle histories, which reduces the time for simulations. In my model, there is a point neutron source, an object, and a detector. Most of the neutrons do not reach the detector. So...