Recent content by DEvens

Apologies for responding to the 2 year old post. When you use CardSharp what do you write? So, for example, I want to make an input with the usual bunch of cells and bunch of materials and bunch of data cards and such. Will I be writing Python code? Presumably then the Python code calls...

Somebody who thinks humans are an epidemic might benefit from taking mind altering drugs.

If you have no way of getting the number of particles started per second, then you cannot normalize to that basis. You can only report the results in terms of per-particle-started. You can still give a spectrum, but only normalized on the basis of per-particle-started. You can still do some...

SpaceX did 165 launches in 2025, including putting up 3000 Starlink satts. Including Starlink, SpaceX made a profit of about $8 billion last year. This is based on about 9 million subscribers to Starlink, and various launches for various other customers. The number of Starlink customers is...

You can probably get a library card at your local university for very little money, maybe free. A medium-to-big uni is likely to have the journals you want. University of Toronto, for example, charges $145 Cdn per year. You can get discounts for being a senior, for being a U of T grad, for...

My personal bias is not to use rpp or rcc. I prefer to use simple planes and cylinders. That's mostly because of what I have wanted to do with calculations later. For example, when I model a fuel bundle, I often want to use the end surface of the fuel pins for other purposes. It is then not...

Normalization of detectors is a thing. What you need is some way of knowing the number of particles per second in your real system. You mention a DT neutron source and you are using 14.1 MeV neutrons. So I am expecting you have an accelerator firing D's into a T target. You would need some way...

Alex A mentions there being no cell 1504. In the OP there is no surface 1504 either, it's a line number as printed out by MCNP. flashcflash mentions the user manual advising not to use the complement operator too much. This is correct. But the complement operator is the # sign. It indicates...

As Alex A said, your NPS is rather large. It will take a long time to run. As a usual method, you want to start with a small number of particles and see what your tally uncertainties come out as. If they get too few particles you can increase NPS. I would suggest starting with something like 1...

Ask the same questions about your neighbors. How do you know your neighbor is something beyond whatever you care to call mechanical or deterministic or material or whatever? Your neigbor is made of a collection of chemical reactions in a complicated mechanism. It may be subtle, but it is...

Sadly, used bookstores won't even take old textbooks for free. So, unless it's some really famous text that has some special significance, once you don't want it any more you likely are going to dump them or such. Digital is taking over. Fewer and fewer people want paper bound books any more...

It's a multiple choice question. Usually you are advised to look for the "most correct" answer. Ordinarily multiple choice are for cases where the number of students is very large and so the instructor does not have time to mark long-form questions. So if the answers are a bit, well, frayed...

The good thing about Python is, it's easy to get started coding. In a few hours you can be hacking stuff that runs. The *BAD* thing about Python is, it's easy to get started coding. In a few hours you can be hacking stuff that runs. So there's nothing to encourage you to look for good coding...

You should look first inside your own country. If there is nothing interesting to you there then look outside. Lots of countries will be reluctant to let non-citizens work in the space industry. There is something to be said for somebody who knows how to work hard and does so. Lots of guys...

That's for complex numbers. This one for calculus. https://www.amazon.com/Schaums-Solved-Problems-Calculus-Outlines/dp/0071635343/?tag=pfamazon01-20 And if that one is too easy, this one. https://www.amazon.com/Schaums-Outline-Advanced-Calculus-Outlines/dp/0071623663/?tag=pfamazon01-20...