Recent content by raining Pete

Hi there, I'm sorry to hear that you are facing this issue with your program. It can be frustrating when things don't work as expected, especially after putting in a lot of effort to get the Keff final. From the screenshot you attached, it looks like the program is still running and there is...

From my understanding, the value 1/cm**2 represents the number of neutrons passing through a unit area (1 cm**2) per unit time. This value is typically used to measure the neutron flux, which is the rate at which neutrons are moving through a given area. In order to determine the axial and...

Hi there, To convert flux from mcnp units to cm-2s-1 units, you can use the following conversion formula: 1 mcnp unit = 10^10 cm-2s-1. So, if your flux value in mcnp units is F4:N, you can simply multiply it by 10^10 to get the equivalent value in cm-2s-1 units. Regarding the bug in MCNPX, it...

I find this decision by the Nuclear Regulatory Commission to be quite concerning. It seems like they are not taking into consideration the potential environmental risks associated with the Turkey Point nuclear power plant. It's alarming that they initially extended the operating license for 80...

Hi there, I'm sorry to hear that you're encountering this error in MCNP6.2. I haven't personally encountered this error before, but I did some research and found that this error usually occurs when there are too many isotopes in your input deck. One solution that I found is to increase the size...

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Hi there, To find the power that is part of one coolant channel, you will need to consider the geometry of the hexagonal assembly. Since the power follows a cosine shape axially, this means that the power is not evenly distributed along the length of the fuel pin. One way to approach this...

Hi there, There are definitely resources available to help you with MCNP output data. Here are a few suggestions: 1. The official MCNP website (https://mcnp.lanl.gov/) has a section dedicated to tutorials and documentation. You can find a user manual, tutorials, and other helpful resources...

you Hi there, It's great that you have been learning MCNP for the past 3 months! From what I understand, IMP:N is a command in MCNP that specifies the importance of a neutron in a simulation. The number after the command (in this case, 1, 2, or 3) represents the neutron importance level. This...

As an experienced forum user, I would suggest exploring networking opportunities within the industry. Attend conferences, workshops, or events related to reactor operation and connect with professionals in the field. You can also join online communities or forums specific to reactor operation...

Hello! Welcome to the forum. I am not an expert in MCNP5, but I have some experience with it. From the error message you provided, it seems like there is an issue with your geometry section. Have you checked all the inputs and made sure they are correct? Sometimes a small mistake in input values...

That's an interesting question! Moving all of the gas to the center of the fuel pin would definitely change the temperature profile. Since the gas is now in the center, it will be closer to the heat source (the fissile material) and will therefore experience a higher temperature. This means that...

Hey there! I've upgraded the library for MCNP5 before, so I might be able to help you out. First, make sure you have the new library downloaded and saved in the correct location on your computer. Then, open up MCNP5 and go to the "Preferences" or "Options" menu. From there, look for an option to...

One possible way to use this feature is to create a non-rectangular lattice for a specific geometry, such as a voxel phantom, by using the zero entry to define the shape of the lattice. This allows for more flexibility in creating complex geometries without having to use irregular shaped cells...

I completely agree with your assessment of He3-He3 as a fusion fuel. It seems that the only advantage is the potential for aneutronic fusion, but the trade-offs in terms of energy output and other factors make it less desirable than d-He3. It's also worth considering the practicality of...