Nuclear Definition and 997 Threads

I am done with the first year calculus and physics courses and I think maybe I should be going on one subject to improve in that field. What actually is in my mind is I want to learn about a subject in graduate level then go on on this topic in my physics career. I am interested in the...

From which branch of physics like nuclear physics or theoretical physics the PhD will be more beneficial for career?

Is Structural Integrity Inc the best nuclear plant services company ? Which companies are the best rank NPP services company? Thank you!

It's known that the nuclear reaction rate (inside a Star) can be determined with $$R_{ab}=n_a n_b\left<\sigma v\right> \, \approx \, n_a n_b \Big(\frac{8}{\pi m_e}\Big)^{1/2} \frac{S(E_0)}{(k_BT)^{3/2}} \Delta \frac{\sqrt{\pi}}{2} e^{-3E_0/k_BT},$$ where ##k_B## is Boltzmann constant, ##T##...

In nuclear physics we have talked about the liquid drop model and the fermi gas model. My question is can a Fermi liquid and a Fermi gas be directly described using these models? Are they the same thing? i.e. If I wanted to decribe the difference between a fermi gas and a fermi liquid could I...

I am currently in Grade 10 in Australia and wish to pursue a career as a Nuclear Engineer. And unfortunately, there are no universities in Australia that offer Nuclear Engineering as a degree. Instead, I would have to obtain a degree in any other form of engineering (Mechanical) or science...

Homework Statement Use the shell model to determine the parity and spin assignments for all the stable isotopes of calcium. Homework Equations n/a The Attempt at a Solution The stable isotopes seem to be 40Ca, 42Ca, 43Ca, 44Ca, 46Ca, and 48Ca I believe all of those isotopes except 43Ca are...

Hi pf, Please could someone kindly answer a few questions about proton spin in the context of MRI. As I understand it when an external static magnetic field is applied to a patient the magnetic dipole moments of the protons in the hydrogen nuclei will experience a torque causing them to align...

I'm sorry for posting this another thread, but I accidentally posted under to wrong forum initially and could not figure out how to delete it :-(1. Homework Statement Find the missing isotope: Iodine-127 (n, alpha) My answer is Sb- 122 but it was wrong. Also, how would I go about finding the...

Hello everyone, I need some continuous-energy neutron cross sections libraries in ACE format for MCNP5 (endf66a, endf66b, endf66c, misc5xs) as well as the continuous-energy photon tables (mcplib, mcplib02, mcplib03, mcplib04). Here: http://www.oecd-nea.org/janisweb/search/endf , we have...

Hey guys, wasn't too sure where I should post this but here goes: Im currently taking a grade 11 introductory physics course in Ontario, Canada. We are currently learning the basics of nuclear physics. For most units, I'm able to foresee the thinking (hard) questions our teachers usually point...

Homework Statement (a) What processes changes atomic number by 1? What are the favourable conditions? How do you tell a neutrino is involved? How can we use this to understand the mass of this particle? (b) Use semi empirical mass formula to explain why odd-odd isobars are unlikely, while...

I know that nuclear engineering requires some quantum mechanics but I want to know how much. Are there any textbooks that can fulfill the requirements for quantum mechanics in terms of nuclear engineering? I have heard of this book and I am a fan of old fashioned...

I'm doing a paper on the strong nuclear force for a nuclear physics class. I want to give a good quantitative account for it. I'm very familiar with Lagrangian field theory but not so much with QFT or QCD. I don't have time to learn all of the ins and outs of QFT and for this paper and for this...

What are some standard math courses that nuclear engineers take in college? Do they do more math than calculus 2? Do they use a lot of geometry? What are some standard math books that they will read during their math studies? In general I am referring to the nuclear engineers that work in the...

I have a bachelor degree in Mechanical Engineering and I am interested in CFD. I have an admit offer for MS in Nuclear Engineering at UIUC with RA and MS in Mechanical Engineering at Stanford without any assistantship. Which one is a better option to choose considering the fact that I am not a...

So as we all know (or at least I assume) Global Warming is real and happening, I am a teen, 17, and not trying to get answers for homework or anything like that. I just want to know, is it possible to create fusion using the temperature found at active Geo-thermal sites to reach the temp...

I just want to know what is the effect of proton spin & coloumbs repulsive force & nuclear interaction on binding energy. Plzz explain with derivation.

I just want to know what is the effect of proton spin & coloumbs repulsive force & nuclear interaction on binding energy. Please explain with derivation.

Hi, I'm currently doing an assignment on nuclear physics. One of the questions in said assignment is asking me to state the decays which usually happen within a nuclear power plant, as well as stating the fission products, explaining what's happening, and showing the equation. One of the sites...

hi there! I am nurul ain,new member here. I have a question regarding gamma ray detector, the high purity germanium detector or aka HPGe. What is meant by the detection efficiency at specific gamma-ray energy (εγ)? and whether the emission probability of the corresponding gamma-ray energy and...

Fukushima disaster aside, the USA has only 19% of its energy needs from nuclear plants: see here. Being a free energy, I wonder whether there are reasons, other than safety concerns, that prevents the US from depending more on nuclear energy?

Homework Statement Our instructor asked to find 6 nuclear fission equations related to 235u. I found only 1-2 example. But none of them has shown the steps about fragments to be stable and thermal energy created in that equation. I know it was a mistake. Please help me out. Homework...

So, my current understanding of spin is that when particles with a certain spin state hit a stern gerlach device, their wavefunction is split into components, deflection associated with one of the pure spin states aligned with the device. For spin 1/2 particles, there are only supposed to be two...

http://www.israelnationalnews.com/News/News.aspx/193175 The report http://www.spirit.kauwila.net/wordpress_kauilapele/Critical_Technology_Assessment_in_Israel_and_NATO_Nations_nuc_report.pdf

Can a PhD holder in nuclear physics get good opportunity in next 8-9 years? Are there chances for good career?

Did they read the recent physics papers about the atoms? Overall what sources of information did the old Manhatten Project Scientist like Edward Teller and Robert Oppenheimer use? I bet they must have really enjoyed what they did to be so good at it.

I am close to finishing learning calculus on my own, I am reading quick calculus https://www.amazon.com/dp/0471827223/?tag=pfamazon01-20 And I finished reading Merrill Physics and Principles(really liked the book) although I am still taking general physics class in HS...

1) Alpha particles can react with 48-Ca to produce protons. Consider a beam of alpha particles of current 20nA fired at a think target of Ca of thickness $$1mg/cm^2$$. A detector subtending a solid angle of 4*10^-3 steradians, records 20 protons per second. Determine the total cross section (in...

Can someone please explain to me why the answer to the following question is Krypton? A step by step solution would be ideal please! (b)The following reaction occurs in a nuclear reactor: 235U+01n →141Ba+X+301n+202.5MeV (i) Identify the element X. Many thanks! (Question is Q12 b part i...

Hi I’m a high school senior taking physics and had this crazy idea for nuclear waste disposal. Given: Space is a good place to put nuclear waste Rockets can malfunction possibly leading to their nuclear waste payload being being dispersed I thought of looking toward a rail gun. I found a...

Hi everyone, I hope this type of question is allowed on these forums. As part of my school curriculum, we are required to develop a research question in any field of science that we choose, and were given a reasonable length of time to do this. I, however, entered the school late and thus...

Homework Statement How close does the alpha particle gets to the nucleus in gold foil scatering experiment?Homework Equations Ek = 2.0 MeV W=F delta x F=(kq1q2)/r^2 W=(kq1q2)/r E=W=(kq1q2)/r The Attempt at a Solution E= (k(79)(2) e^2)/r 2.0MeV= (k(158)e^2)/r 2,000,000 eV = 8.99 Wm^2 c^-2 ((158)...

I have looked around for help with this, including on existing threads, but I can't quite find what I'm looking for. I know that in the nuclear shell model we fill the shells in the same way as with electrons, so 2 protons in the first and 6 in the second etc, with the same being true for...

I was doing my homework and really got stuck on one question. Not looking for just an answer as that is useless, I really want to understand how to do this problem as I have no idea how to involve some of the givens. UO_2 is a common fuel for reactors. If the fuel is enriched to 4 atomic percent...

Hello all, I'm trying to answer a question about a meson and a proton interacting to form a neutron and an unknown meson- to be determined. The equation is : (Anti up and strange) + (uud) --> udd + (xy) I arrived at strange and anti down OR anti strange and down. Are both possibilities...

Homework Statement (This isn't a typical problem here so feel free to suggest an alternative forum category or website.) I'm trying to do research for a paper about nuclear waste and depleted uranium storage by the DOD. I have a lot of questions I need to answer before I can get too far into...

Homework Statement I have two questions. 1.The definition of binding energy is the work needed to split the nucleus into its constituent protons and neutrons. The strong nuclear force keeps the nucleus together hence is it right for me to say the binding energy is equal to the energy of the...

Is the weak nuclear force really a force? How can an electron be ejected from a nucleus which has many protons; wouldn't positive charges hold it back?

So I'm in Grade 9 and I have been thinking about careers and I've found myself to most interested in Nuclear and Theoretical Physics. I was wondering if I could do both as a career without dying from exhaustion. Also if I could work it out how many additional years of schooling is it after Grade...

Hi everyone. I'm just looking for an online description of the nuclear magnetic resonance machine, with explanations of all components, and their physical principles...anyone can help me? Giving me any link to a website talking about it? In addiction, could be this be a valid topic for a...

Hi, sorry if this is a novice question. I've recently been introduced to Q value in nuclear and particle physics and all the places I've looked at define it as the change in rest energy between the initial particles and final particles. ##Q=E_f-E_i=(m_f-m_i)c^2## But this doesn't take into...

Ok, so nuclear fusion is given by the formula E=MC2, where E = Energy, M = Rest mass and C = 299792458. To my understanding, this means that if two protons collide under the incredibly high speeds/temperatures(like they do in the sun), they will fuse, having reduced mass and that mass is...

Because there are only so many characters I can put in the title I will future explain down here. I want to do design/work on many things... I don't know how likely it is for me to do these things, but I want to work on electric motors, generators, nuclear reactors, Combustion engines, steam...

If nuclear waste is more radioactive than the nuclear fuel it is derived from, why can't it be used in a reactor?

Homework Statement [/B] b) For a Form factor of form ##\theta_{(1-r)}## and ##\frac{1}{1 + e^{\frac{r-R}{a}}}##, how will these change when ##r \rightarrow 2r##? c) How would one accelerate and observe scattered protons? Homework EquationsThe Attempt at a Solution Part(b) [/B] Rate of...

Homework Statement http://www.boredofstudies.org/wiki/images/b/bb/Sci_phys_quanta_strong_force.png I had a question where I was given the strong nuclear force graph and asked to add the electrostatic force to the graph. It was a graph showing the forces between two protons. It was a three mark...

Homework Statement Knowing the Z (number of protons) of an element, how can I find N (number of neutrons) or A (mass number) of the element? Homework Equations I tried to use the semi-empirical mass formula EB = ανΑ - αsA2/3 - αcZ2/A1/3 - αΑ(Α-2Ζ)2/Α - δ(Α,Ζ) for this. The Attempt at a...

This isn't really my area (I'm a mechanical engineering graduate), but I thought maybe somebody on the forum could give me feedback or help redirect my thinking if this is not right. So, neutrinos are famous for not really doing anything, just kind of being there (by this I mean being the...

Show by direct calculation that Eqs. (4-134) and (4-137) in the textbook by Duderstadt and Hamilton hold, i.e.:(a) ∫ dΩΩiΩj= 4π/3 δij; i,j = x,y,z; 4π(b) ∫ dΩΩxΩyΩz = 0, if l, m, or n is odd. 4π The integrals are over 4π. This is part of the derivation of the diffusion equation...