Nuclear Definition and 997 Threads

Homework Statement Consider energy generation in the Sun. Fusion through the pp cycle takes place within its core which has r = 0.2 Rs T = 1.3 x 10 ^ 7 K rho (density) = 1.1 x 10 ^ 5 kg m^-3 X (total mass fraction of hydrogen) = 0.34 The nuclear energy generation rate for the pp...

I am looking at this pretty chart: http://upload.wikimedia.org/wikipedia/commons/8/80/Isotopes_and_half-life.svg My question is, how sensitive is it to the variation of SM parameters? Imagine that I am sitting in front of some magic TV, where the image above is displayed. Below there are...

I need a detailed explanation as to how nuclear fusion works. How it produces energy and why? Be very specific as I have a general understanding.

I was wondering if anyone has any actual data on the surface temperature of a fuel rod as a function of time. I am really curious as I am trying out a model I found which uses the fractional calculus. Or if anyone could point in the right direction to find said data that would be great as well.

Hi, I'm new to posting on this forum, but I've been reading posts on here for a while :) Next weekend i am hosting an event to teach middle school kids about the field of Nuclear. I cover Radiation, Basic Atomic Structure, Fission, Fusion, fun jobs in Nuclear, ext. I need a fun name to...

I am having difficultly picking a major for myself. I have always enjoyed math and science (mostly calculus and physics). I currently go to Virginia Commonwealth University, which offers a nuclear engineering program. I have taken an immediate interest in changing my major to this program as it...

This really isn't a homework question per se, but I really don't want to post in the big boys' fora. I am learning about basic modern physics at school, as the title suggests, but I am very confused on one matter. Take the tritium nucleus as an example. If tritium nucleons are separate...

Hi, in nuclear reactors the water is heated while traveling through the core , now this heat comes from the nuclear reaction taking place in the core fuel assemblies, the part that I wnat to know is which of the elementary particles that come out of that reaction heat the water more and which...

Hi, everyone! I am undergraduate student from China. I am applying to pursue a PhD degree in United States next year. I am interested in nuclear materials, but the problem is that my home school offers little course on materials science. I am affraid that students of materials science may be...

Hey, sorry if this is the wrong place to post this, I'm new here I'm in high school and have read several books on nuclear physics, and have become very intrigued by it. I am wondering were to start in terms of good learning resources for physics and nuclear physics, and how to go about...

Where does the potential energy go if you carry uranium to a nuclear power plant on the top of a mountain and part of its mass becomes energy?

If using the nuclear radius equation: R = R0 A^(1/3) as shown half-way down this page: http://en.wikipedia.org/wiki/Atomic_nucleus r0 = 1.25 fm = 1.25 × 10−15 m Is this value for r0 always this value, irrespective of the material in question? For example, if it was gold, or some...

Question: A sample of radioactive substance K and a sample of another radioactive substances L have the same initial activity. the half life of K is TK and the half life of L is TL. After a time T, the activity of K was half the activity of L. Expression in term of T, TK, and TL.

Really, what I'm wondering is if the blast radius is a constant given an increase in output. I assume it is not. So I'm really at a loss as to how to calculate such a massive value. The scenario is the explosion occurs at sea level on a flat desert plane. Help?

we know that the full life of radioactive sample is infinity. and if we take one radioactive atom in the sample then it's full is measurable and short. it changes when when it emits sub atomic particles. which contradict each other. we need to know more. the dimension of radioactive constant...

Hello Im working on a project and I am looking for a place to find nuclear data. For example I'm Interested in Ferromagnetic substances in which the nuclear decay decreases by unit through Electron Capture Is there a place where i could sort data like this? Any info would be appreciated

I was wondering if anyone could give me any advice/past experiences about applying to the MIT phD nuclear engineering program. Any advice would be greatly appreciated, thanks.

Hey guys I had a quick question about working at a Nuclear Power Plant. I want to become one of the Nuclear inspectors but I don't know which degree to go for. Is it the Nuclear Engineer because I have been noticing that more when looking more into power plants. I was going to go for a PhD in...

Hi, I am a nuclear medicine major. Recently changed from nursing. This semester I am taking college physics I and in order to remain a full time student I took on a directed study in which you research a topic/solve problems and write a paper on the matter. I was told I should do it on...

Has anybody thought of it before? I mean even if it were energetically expensive to harness it it might actually create more than it takes since the energy source is raining down from the heavens anyway. Such a power plant would have to be placed at a high altitude though because most cosmic...

I have completed my graduation in Mathematics and enrolled myself in a MS course in Nuclear Engineering. I have intended to have a PhD or MPhil. Is there is any scope for students of mathematics to research in any topics grounded on mathematics in Nuclear Engineering? Please suggest me!

Can a nuclear engineer consider himself even a nuclear physicist or an expert in nuclear physics ? Are there some works in the aerospace industry for a nuclear engineer or an energy engineer ?

I have come across the Slater's Rules that is used to calculate the numerical value of effective nuclear charge of elements. Can somebody please show to me the calculation of effective nuclear charge of atoms of element down the group 2 by using the Slater's rule?? I calculate by using the...

Making it short : Do gamma rays ALWAYS accompany a nuclear reaction?? I was thinking, since there are only three types of radioactive decay, alpha, beta and gamma. I don't quite understand how gamma radiation will always occur. Isn't it going to be just ONE of the three types? /Help :)

Hey guys, I'm getting a bit confused about nuclear fusion. I understand the basics of binding energy being the energy required to split the nucleons apart etc. and the fact that in nuclear fusion you are combining two particles e.g. (2 deuterium nuclei) with a lowish binding energy to form a...

Hello. I am wondering what the job field is like for nuclear engineers that aspire to work in plasma research and implementation or things like ion propulsion, etc. I do not want to work in a plant. Thank you.

Hey there, I'm currently about to start a postgraduatde MSc Nuclear Science and Technology course (with most subjects looking in safety, risk assesment, fuel cycles, design and a project in damage simulation) after completing BSc Chemistry and Molecular Physics with engineering experience...

Hello all! I've graduated my undergraduate Masters in Physics with astrophysics this summer, and am now looking into doing a postgraduate Masters in The Physics and Technology of Nuclear Reactors as the area holds great interest for me. The problem is I don't really know anything about the...

Hi All, I know that when an atom is heated up electrons are excited to higher energy levels and upon returning to their ground/original state they release photons, I was wondering if the same kind of thing happens during a nuclear transition and what sort of processes are going on in...

I know how Nuclear Power works so this will help you move a little faster with helping me. Whenever I see a Specs on how they Colldown a Reactor they show you a big Pump going into the Core and turns and goes back out. In this big Pump is Cold Watter and because it is going throu the water...

Hello, I'm an AS student and probably going to study A2. I was wondering if someone tell me how to work out these questions, step by step? Relationship between Radius of Nucleus And Mass Number 1. By assuming that the density of the nucleus is the same for all elements in the periodic table...

I'm currently trying to figure out which field of Physics I should study. I have a huge interest in learning Astrophysics and am open to learning about nuclear physics. My current college has a great program for studying Nuclear Physics and numerous internship and research possibilities for...

I am from India and i have a bachelors in mechanical engineering. I have recently given my GRE and TOEFL with scores of 313/340 (161-quant & 152-verbal & 3.5-AWA) in gre & 110/120 in TOEFL. I am planning for MS and probably PHD in nuclear engineering. I am not interested in either hydraulics or...

The Criticality Project is the work in progress of six Columbia University students under the guidance of a Professor of Physics, Emlyn Hughes Stationed in outside of Geneva, Switzerland, the K=1 team works in conjunction with CERN (The European Center of Nuclear Research) as it travels...

I know that gamma rays are a part of the electromagnetic spectrum and that they are also a type of nuclear radiation, created upon the decaying of a large, unstable nucleus. Is there any difference between these 2 definitions of gamma radiation? Is gamma radiation only created in the way...

Hello, new here. I'm not sure if I've placed this in the appropriate section, but here it goes. I have a few questions. 1) I know that when spent fuel rods come out of a reactor they are extremely hot and if not cooled, can meltdown. How long do they need to be cooled before they are...

Isn't there any better/more efficient methods of generating electricity from fission/fusion than basically using the heat to boil water to spin a turbine? I know that that there are different generations of nuclear reactor designs (with each more efficient than the last) that get better and...

Here goes another post about transitioning from Physics to Engineering... I am 22 years old, and I will graduate with my MS in Nuclear Physics in May (current GPA: 4.0/4.0). My thesis is primarily concerned with the software development of a silicon detector that's located on a heavy ion...

Okay I'm taking an Individual Learning Course in Ontario for SPH4U and this is a Support question: How much energy would be required to remove one neutron from nitrogen-14 isotope, given these masses? a) N-14 isotope 14.0031 u b) N-13 isotope 13.0057 u Homework Equations Knowns...

Hi everyone, I'm a counselor at a boy scout camp and we're looking at adding the Nuclear Science Merit Badge to our program. I had a couple questions about it for someone more knowledgeable than myself so hopefully someone here can help! -Two requirements involve the construction of a cloud...

We occasionally get questions related to codes and computational methods. There have been considerable advances in computational methods and computational systems in the field of nuclear energy and nuclear engineering. This thread serves to address previous developments and follow current...

A Lithium-6 sample (m = 12,0 mg) which was isolated in ampule V = 200 cm3,was loaded in nuclear reactor and irradiated by neutrons for a long time. Calculate the maximal pressure in reactor, T = 400 K. The equation is Li + n = T + α I calculated the energy of this reaction using formula...

Can anyone tell me who is a Mechanical Engineer and works in a Nuclear Power Plant, just what their daily duties include? How they like the work environment and such. I'm interested in knowing because as a student, my university has a Co-op program. Recently, I sent out my resume to FirstEnergy...

Hello, so I am currently in a respectable physics program at Queen's University in Canada. I have finished 3 years in the degree (after 4 years, long story...), but my former GPA was around 2.0, not nearly up to the 3.0 standard. I am now considering transferring to the nuclear engineering...

"For almost all nuclei, the binding energy/nucleon is roughly the same. Hence the total binding energy of a nucleus is roughly proportional to the number A of the constituents. Every constituent of the nucleus is more or less equally strongly bound unlike electrons in atoms where the mean...

Does it give a lot or is nuclear fission only powerful when you have a large quantity?

Much to my surprise, there is substantially less information on this topic on the internet than I initially thought there would be. Wikipedia has very little to go on, and I can't find any papers or serious discussions of this topic. There are many people asking similar questions on websites...