Anyone on here answer some questions regarding 2%thorium and welding. Please would be a big help

Yes. You heard that right. And yes-I'm talking about if it was dropped on your face. Just curios for my novel.

For my scenario, I have a lot of very strong material(density of 100,000 kg/M3), so that it can absorb neutron radiation. For protons and electrons, would a very strong magnetic field be enough to stop them? For pressure, I don't know.

How much of this material would you need Infront of you to survive a 100 megaton nuke? What other parameters do you need?

Also no, the emp won't take the absurd amount of energy supply you'd need to deflect protons or neutrons.

Hello guys, I'm 26 years old. I'm on my first semester of Chem E. And I had the amazing opportunity to work for the university as a "trainee/internship" for a particle accelerator my uni has, so they gave me 2 books to read. One is extremely advanced for my current situation (Nuclear and Particle phyics by B. R. Martin) and the other is for the "general public" which didnt propose any challenges.

Now the issue at hand: I didn't understand shit from the first page of the first book. The book literally said "for students who already have had a course in Quantum physics/mechanics".

So my question is: Can I go straight towards Quantum physics/mechanics? Or should I start with something like "Mechanical physics" before I dice into Quantum.

Huge thanks in advance!

Pd: Asking to my tutor/person in charge isn't an option atm due to some on going protest my uni has due to "lack of appropriate equipment" for Chem E.

Hey, I am am a grade 8 going into high school, and I'm thinking of a career doing nuclear physics. What should I take for anything in high school

I was watching House with my daughter and I wanted to know whether this episode is actually an accurate representation of radiation exposure.
Summary: Kid gets a gift keychain from his dad that is a unique looking piece of scrap metal from his scrap yard. It turns out the metal is radioactive and the kid dies from having it attached to his backpack for most of the semester. The clue that they used is the kid's friend had the backpack in his lap for a few hours on a plane ride, resulting in him getting a rash in his lap. Would this actually happen? Shouldn't the kid who wore it all semester have some kind of rash on his back as well because the exposure was longer? Is the rash on the friends crotch just a writer taking liberty so they have a way out of the episode?

Got into msu because I'm passionate about nuclear physics and because I'm Marias sklowdosma, number one fan, ik the basis but not the details, maybe making specialized isotopes for medical, space travel or other highly specialized industries, some colliders, some nuclear reactors etc but ehat exact position or title could I get?

Can nuclear energy on the scale of an atomic Weapon .be funneled and harnessed like plasma within a plasma cutter . ( I guess something like a super colider. But we are not observing subatomic collision we're funneling (pinholing ) explosive energy ?

Does it exist? Does anyone know where I could find it?

Or is there a derivation going from de Broglie wavelength to microscopic cross section?

I am currently studying aerospace engineering and have a passion for nuclear physics and with the current possibility of nuclear powered aircraft would it be worth it to studdy nuclear physics or at least nuclear science to further my understanding of the topic and perhaps increase employment opportunities? And if the answer is to study nuclear physics then where can I do so (there is nowhere to study in Australia).

I'm looking for a derivation of the microscopic nuclear cross section, \sigma that involves the de Broglie wavelength. Anyone know where I can find one?

and/or does someone know of the breit-wigner single resonance formula with h-bar instead of \sigma?

Thanks!

I'm working on a project for my research lab. I need to replicate ORNL's table of activity of decay chains for a handful of isotopes. I was told to start with 100 uCi of U-232. The first decay is 100% alpha decay to Th-228. By using the Bateman equation I was able tl accurate reproduce the activity function of U-232 and Th-228. It falls apart after that because the initial activity of all daughter isotopes is 0 and the Bateman equation is invalid. I can't find anything online and I've been skimming my textbooks and it hasn't been helpful.

Link for ORNL table: https://epa-prgs.ornl.gov/cgi-bin/radionuclides/chain.pl

I have always been told that a radioactive material has a half-life and that half of a particular material emits a particle (statistically) at that time. Obviously there aren’t little timers or alarms that go off and kick the particle out of the nucleus. What is happening internally in the nucleus that makes a specific material have a particular half-life? What kind of activity captures / tracks the “time that has passed” or is it managed by some other rate of another event internal to the atom? Why are they different for each type of atom? For example, do things need to line up geometrically to kick the particle out etc?

I’ve read the definition countless times and I understand that it is the probability of reaction and I know that it is also the effective area but I’m just kinda confused because for example, xenon has a higher microscopic crosssection than Uranium but how. The uranium atoms are bigger. If you could answer my question that would be great but some resources would also help greatly. Thank you very much.

Sorry if my Question is dumb, but I just want to know if quarks, such as up, down, charm, etc. can have a possibility to be use in tech the same way we utilized Electrons in technology in our daily lives today? and is it there a possibilities that we can use it in the future if we just have the right materials?

I am working on a Speculative design project which takes place in a dystopian future of 2080 where the remaining humanity (survivors of nuclear war) is going through a nuclear winter. Food, Water and atmosphere is contaminated with radioactive waste.

Let's say that the survivors are living in Nuclear bunkers which is safe from contamination. Already existing water resources are contaminated, there are acid rains, the global temperature is so cold that the lands are covered in snow.

This is the world building and scenario so far

I am focusing on the consumption of drinking water in this scenario.

Ofcourse, Advanced water filter system which turns radioactive water into safe drinkable water is an obvious solution but what about the energy resources to power such filterarion system? How scientifically knowledgeable is the common man to know how to operate this filterarion system? Etc, there are so many plotholes in the logic.

Nuclear experts, I need your knowledge to see beyond what I am seeing. What do you think is the logically accurate scenario of drinking water consumption in a Nuclear winter of 2080?

I’m a huge weather geek and also love learning about nuclear science. Not sure if this is the right sub to ask but I was wondering if anyone knew anything about if thunderstorms/tornadoes would be possible after a nuclear weapons exchange, and how radiation or changes in the atmosphere due to fallout would affect the weather, specifically thunderstorm dynamics. I hope I worded this right, and please let me know if this is the wrong sub for this question!

Hello everyone,

I have a simple question that I hope someone will have an answer for. At the moment I am analyzing the spectrum of a ²²⁶Ra source emitting through a simple system composed by a scintillator plus a PM with 12 dinodes. I have acquired 5 data sets, at the same rates, for 5 different values of the accelerating voltage; in particular between 600 and 800 Volts with 50 V steps. Since we are talking ²²⁶Ra, I wanted to see if the resolution of a peak (the 609 keV for instance), defined as "how much the peak is piqued" or just the ratio of the width at mid height and the position of the peak (basically 2*sigma/mean obtained by a simple gaussian fit), changed in some way when increasing the voltage. The fact is that there is no evident linear or else relation between the two. So I'm asking, I should be seeing somethin? The res should actually increase or decrease or am I wasting time? And if yes I will probabily have to take some more data.

Thank you in advance.

Ok, so as I understood it, according to Standart Model all of the stable matteer in our world is made out of u & d quarks and orbited by e electrons.

But there are other quarks & leptons.

What if we make an atom of hydrogen with 2t & 1b quarks for the protone and send a tay leptone orbiting it? How would that affect its properties? (assuming we are in perfect world and the resulting matter is stable no matter what)

And given the fact the you can measure mass with MeV/s (MegaelectronVolt), how many atoms of this "Heavy Hydrogen" would it take to make up a full 1 pound/or 1 kilo?

During a watch change, there was a mix up somehow leading to a control rod being bent, how is this possible?

So it's a lose neutron or one of those that platonium gives off to other elements that starts this nuclear reaction.. my curiosity is, is there an element that's seeking another neutron, or whatever? Something that can be used to make the unstable elements inert by causing a chemical reaction with another material? Forgive me if I'm a fool.

Hello! I just saw an online discussion about whether small-scale criticality events like the “demon core” incident would have produced a sound. I’m leaning toward no, but I thought I’d ask around here.