Nuclear Definition and 997 Threads

I want to start a serious discussion here about our future on this small planet. This thread is especially dedicated to those of you, who are enthusiastic about atomic energy and energy crisis.

The independent particle energies for protons and neutrons around the exotic doubly magic core 132Sn are shown in the figure below, where π refers to protons and ν to neutrons. Using the nuclear shell model and using this figure as a guide, answer to the following questions: a)Estimate Jπ...

So as I understand it, there are five types of radiation: alpha particles, beta particles, sub-red light, visible light, and above-violet light. Sub-red light is basically like Superman's heat vision, while above-violet light includes UV light like the UV-A and UV-B that sunscreen protects you...

Uranium fission bombs have explosive power ofabout 10 000 tons of TNT. I understand that you can't make a uranium bomb with explosive power of 5 megatons of TNT brcause of the critical mass of U-235. Similarly you can't make an atomic fission weapon with explosive power of 10 tons of TNT...

Summary: I am looking for suggestions on an informative read surrounding nuclear energy I am a junior year physics student at UCSB looking to go to grad school for nuclear physics and eventually work with nuclear energy. My curriculum at UCSB does not offer any explicit classes surrounding...

Homework Statement:: nuclear/atomic physics research problem Relevant Equations:: research problem please Hi all Anyone who can help me to get a research problems based on advanced nuclear physics please... Thank you all

Youtuber Kyle Hill has created a great sequence of videos on nuclear disasters around the world: They include: - THERAC-25 Medical Device disaster where cancer outpatients received doses many times greater than what the doctors prescribed - The Demon Core: fissile material that scientists...

I spent the past several weeks making this 3D model of a nuclear power plant control room.

The "sleep hormone" melatonin, sold at health supplement stores, has been found to prevent radiation sickness from ionizing radiation: https://pubmed.ncbi.nlm.nih.gov/30073934/ There are also some other references for this findable with a Google search. But you don't want to be on melatonin...

Hi guys! I'm a master's student majoring in nuclear engineering in graduate school. I have a few questions while doing research, so I'm writing this here. My research is simple. We conduct neutron analysis to convert a research reactor using highly enriched uranium into a low enriched uranium...

Nuclear Fusion Breakthrough Confirmed: California Team Achieved Ignition BY JESS THOMSON ON 8/12/22 AT 9:20 AM EDT https://www.newsweek.com/nuclear-fusion-energy-milestone-ignition-confirmed-california-1733238 For those of us not literate in the field, how significant is this and what are the...

Me again! For a sci-fi story I'm working on, I've created a sci-fi technology called an Aneutronic Triple Alpha Fusion Reactor. It works via aneutronic fusion, in this case, fusing Deuterium with Helium 3, but it also mimics the triple alpha process found within stars to maximise fuel use...

Hello, I would like to know where I can find detailed control panels pictures of nuclear plants. Not necessarily the complete control room but the main panels. I need to be able to read switches, alarms lights, etc... Have a nice day! Thanks

Hi everyone, I'm from an Asian country, and graduated with M.Sc. degree in nuclear power engineering last year from a university in Russia. Since then, I have been looking for jobs related to nuclear engineering but no luck up till now. Seeing that nuclear energy is getting trendy now in...

A 4 ft diameter black hole (1.5 to 2 times the mass of Saturn) is headed toward Earth. Will Earth be able to defend itself using missiles with nuclear bombs? How to calculate such a problem?

Halves-lives and average lifetimes, when studying nuclear decay, are often expressed in years even though years are not standarized, at least in SI (as far as I know). Borrowing the convention from astronomy and astrophysics, I usually take 1 \mathrm{yr} to be equal to 365.25 days of 86400...

I'm learning about nuclear fission for fun, well based on my research, 82% of the time that uranium-235 absorbs a neutron it will fission, the uranium-235 will briefly turn into an excited uranium-236 and after that, it will split, the other 18% of the time it will just emit radiation and...

Hi guys! After many years of lurking quietly I finally have a question that I'd like to know, please. I'd like to know how much energy is needed to make a wormhole in terms of our current nuclear weapons, or how much mass is needed to turn into pure energy, maybe via antimatter annihilation...

good morning gentlemen, the Russia - Ukraine war really scares me, in case of nuclear disaster, with Putin's missiles, what are the worst damages? and which nations are most in danger?

When the US first developed nuclear weapons against the Nazis and Japan, their primary concern was whether the nuclear reactions can trigger the atmospheric nitrogen to fuse and burn the whole atmosphere. However this claim was instantly debunked by physicists. Their reasoning is that in order...

Summary: Since I did not start out in calculus 1 in my first semester of college I have to take an extra semester in my four years to get my bachelor's degree in Chemical Engineering and Clemson offers a minor in Nuclear engineering which would just add 15 more credit hours to my overall degree...

If I am not mistaken, binding energy is the energy required to separate the constituents of the nucleus, and is always a positive number. However, if splitting elementary particles in the nucleus apart requires energy, then why do fission reactions release energy?

What happens to the higgs field when say a fusion reaction occurs. Like if mass is converted into energy and the higgs field gives a particle mass what happens to higgs field. I doubt this, but is the higgs field the mechanism that converts mass into gamma rays. Go easy on me I only have a high...

How do I create a nuclear fission reactor? if you can link me up to any places to buy the things or any other sites that would be good.

hi guys I am recently taking a Nuclear structure course, and have a lot of questions regarding the nuclear rotor model. in most nuclear physics books the I have, the wave function associated with the rotor model of the nucleus is written in terms of the Wigner D functions , like the expression...

Hi, I am doing my PHD in Nuclear/Particle Physics and I am getting all of the information I am using from papers, which are very specific. I feel like I am lacking general knowledge, which is likely to be tested in the defense. Do you know any book where I can get a better overview on Nuclear...

Let's keep this non-political, similar to the Fukushima thread. Thanks! https://finance.yahoo.com/news/1-ukraine-nuclear-power-plant-001225198.html

How sure were those involved with the first nuclear explosion test that there wouldn't be an unanticipated reaction of the explosion continuing beyond the material intended? I.e. that the Earth wouldn't go up in a ball of fire, the scientist's last utterance wouldn't be "Oops..."?

I have found articles that show T1 and T2 values for mineral oil and I compare them to mine and there is over 50% error also I know that T1>T2 but mine numbers don't follow that scheme.

Hello! I'm currently building a cloud chamber, my end goal is to make it powered by Peltier chips but that won't happen until I can make it work with dry ice. I've been able to achieve a supersaturated layer of isopropyl alcohol in the chamber, however, even with very radioactive uranite...

Hello! I have finished high school quite a few years ago. I did a physics course that went over nuclear fusion and fission, and I quite enjoyed it. However, I unfortunately no longer have those textbooks (I sold them on as many people do). Now I am doing a bit of programming in the field of...

hi guys I have read the other day about how the nuclear quadruple moment descries the deformation of the nucleus, however i can't get my head around how is that!, I am familiar with the multiple expansion in which we can describe the potential of an arbitrary charge distribution by the following...

What is the limitation of length of a fuel bundle in a nuclear reactor. Can we increase the length of bundle consequently reducing the number of bundles in a fuel channel?

How did you find PF?: I searched google for a Physics Forum I searches Google for a Physics Forum, to enable me to pose a question to people who know more about physics than I do. I have no detailed physics knowledge, but do read a lot of science articles, so understand most of the basics. A...

In this thread, @haruspex presented a very deliberate point about the role of electrons in a nuclear fission reaction (he might have said or meant something else but I will present my version of it). The problem that we have before us can be stated, as candidly as my linguistic faculty of mind...

Whats shielding effect and effective nuclear charge?

I was just wondering. If one used a shielded tungsten projectile and some small diameter nuclear devices could someone shoot a projectile into space by using a borehole drilled into the Earth like a cannon barrel?

Iron (Fe-56) is in terms of nuclear energy spent, which seems equivalent to saying its nuclides are the most tightly-bound. Does this also make Fe-56 the most stable nucleus, and is nuclear potential energy to stability a general correlation? Do more-stable nuclei generally have less nuclear...

Hi Of the 4 fundamental forces, I did not understand the weak nuclear force. Is the weak nuclear force attractive or repulsive or both? It works between two particles, that is, it is the interaction of two particles?

I am trying to find the mass flow rate of coolant through a channel within a hexagonal nuclear fuel assembly. I am given the specific heat of the fluid, the coolant inlet and outlet temperatures, the total power produced by a single fuel pin, the diameter of the fuel pin, the length of the fuel...

https://www.theregister.com/2021/11/15/wireless_information_transfer_with_fast_neutrons/ https://www.sciencedirect.com/science/article/pii/S0168900221009013 Not sure there are any practical uses, but interesting none the less...

Hi y'all, I'm a 3rd year undergraduate, finishing up a BS in physics and a BA in political science. I've been working at a computational physics lab since freshman year, my GPA is pretty good (3.73 right now), and I'm pretty involved in campus leadership. I love physics and the lab I'm working...

Hi, I have some questions about nuclear fuel, I hope I could get some direction here. Firstly, based on research I've done it appears that spent fuel rods come out of the reactor around 5000 F, is this true? Secondly, if the previous statement is true how does the water in the fuel pool not get...

Just joined the forum after youtubes algorithm suggested a story documenting the ‘Chicago Pile’. I ended up watching a bunch of other power plant videos becoming more confused with each one. I apologize up front as I know nothing about the field of nuclear physics and not even sure if I’ll even...

I think I have the answer, but when I calculate it out, I'm off by at least an order of magnitude. My process goes like this: The (looked up) specific activity of Ca-49 is ##1.63*10^7 TBq/g##, which is ##1.63*10^{16} KBq/g## The activity of the sample after 5 minutes rest is ##166KBq##, per...

I wonder whether the following description is physically accurate: White balls like the Moon appeared on the night sky, when the nukes detonated in the ionosphere. Computers and cellphones ceased to function, transformators were overloaded and smoked. As if ancient, cruel gods punished humanity...

Let's say we have a cylindrical fuel pin with fissile material in the middle, followed by a gas gap and cladding material. It is being cooled by water on the outside. The temperature drop through the fissile material should be parabolic due to heat generation, and the temperature drops through...

What are the most common types of cancer caused by exposure to excessive amounts of radiation?

https://phys.org/news/2021-08-major-nuclear-fusion-milestone-ignition.html Anybody know any more? Like what they did differently from earlier trials.

I thought the first step is to compute the loss of mass. ##\Delta m=m(_1^2\textrm{H})+m(_1^3\textrm{H})-m(_2^4\textrm{He})-m(_0^1\textrm{n})=2.0141018u+3.0160493u- 4.0026033u-1.0086650u=0.0188828u##. The corresponding reaction energy is ##0.0188828 \cdot 931,5MeV=17.54MeV\approx 2.81\cdot...