Nuclear Definition and 997 Threads

A person said: "However uranium-235 (U235) makes up only 0.72% of normal uranium metal and has to be separated from the remainder (mostlyuranium-238) in special factories which makes uranium-235 (U-235) a little more expensive. An uranium-235 (U-235) atomic has three neutrons less than an...

1. Consider the reaction that happens when a photon collides with an atomic electron in rest ##\gamma+e^{-} <---> K^{-} + v_{e}##. The masses of all particles can be considered as known. What is the minimal energy that the photon needs to have to make this reaction work?2. Conservation of four...

There are reports of a renewed reactor shutdown at Zaporizhya, the Ukraine's largest nuclear power station, as well as rumors of possible radiation leaks: http://www.zerohedge.com/news/2014-12-30/ukraine-hiding-huge-radiation-leak-largest-nuclear-power-plant-Europe Given wretched weather and a...

Hey all, I am in need of some guidance regarding an engineering degree. I'm currently a Navy Nuke and am set to leave the service in around 2 years. My schedule doesn't allow me to attend a brick and mortar school for the foreseeable future but I'd like to start working towards an engineering...

Homework Statement When we use ##J^{/pm} ## where ##/pm## gives the parity, some sources say ##J## is the spin and some say the total angular momentum, I'm confused ! Also in my notes we have ##P=(-1)^l##, but looking on this thread...

Hey anyone, I am not all that good at academics and so I'm in a bind. I want to be an engineer, but no way I can transfer into Purdue's main campus, just can't get my gpa up there. I can stay at the calumet branch and get a physics degree, but my love is nuclear energy. I come here because i...

I can't understand completely the concept of strong nuclear force and weak nuclear force,,,

I have a B.S. in physics. Am I qualified for entry-level jobs in nuclear engineering?

Suppose we define the total angular momentum as F = I+J where I is the nuclear spin angular momentum and J is the total electronic angular momentum. mF and mJ are the respective magnetic quantum numbers. The relevant F selection rules are delta_mF = 0, 1 and -1, delta_F = 0, 1 and -1. And...

Hello all, From those guys who worked with different materials especially reactor moderators and coolants, is it practicality possible to compress D2O between two metallic parts until it remains solid in room temperature? In otherwords wants to have D2O in solid at room temperature. Thanks in...

In a bosonic atom i.e. Hydrogen, why do we never observe quantum tunneling past the coulomb barrier leading to multiple atoms occupying the same area of space thus (due to Newton's law of universal gravitation) accelerating towards each other resulting in nuclear fusion?

We have just been informed by media in europe that an accident had happened (today?) at the south ukrainian nuclear plant Saporoschje (warzone). Ukrainian Energy Minister will inform the public asap. First rumors say it's not a security issue, it's a technical issue, whatever that means. Let's...

Hey guys, I've been asking around trying to see what schools on my list are 'reach', 'safety', or 'matches' for my profile. I was wondering if you guys could take a look and let me know if there's something that's too crazy or well within reach (or if I should just wait 'till next semester based...

Homework Statement Create a secondary graph that allows you to graphically determine the decay constant, k, for the observed nucklear decay of 137Ba*. Homework Equations 0.693/k = half life Something with an LN in it The Attempt at a Solution I have no idea what it means by "secondary graph"...

Homework Statement [/B] Suppose the main water pipe breaks in a nuclear power plant, shutting off the water flow. If the control rods fall immediately into place, stopping the chain reaction, is there still a problem? Yes, because radioactivity continues to create lots of thermal energy. (A)...

According with this article http://en.wikipedia.org/wiki/Optoelectric_nuclear_battery Can it be possible to make a similar battery but filled with tritium and coating or painting the photovoltaic surface with luminiscent substance as is done with tritium keychains...

Hey guys I got accepted into A&M's Nuclear Engineering program (undergraduate) for Spring 2015. I am interested in nuclear engineering because the whole idea of splitting the atom and the physics involved fascinates me, but I am not sure about the job prospects for nuclear engineering. I am very...

Homework Statement A neutron strikes a Plutonium-239 (239Pu) nucleus and creates Barium-142 (142Ba). What other element is created? Homework EquationsThe Attempt at a Solution I actually have no idea...could someone just start me off? Thanks!

I recently received by Ph.D. in physics. Most of my physics experience is experimental work with optics, ultrafast laser science, laser plasma physics (relatively weakly ionized and atmospheric density plasmas), and RF and microwave experiments. However, I would really like to get involved...

I've seen explanations that when a neutrino with a W+ Boson comes near a neutron, it affects one of the bottom quarks and changes it to a up quark which effectively turns the neutron into a proton. The neutrino then turns into an electron. Source: (2:20 onwards) I've seen other explanations...

All else being equal, which color clothing would be best if you are exposed to a nuclear explosion (far enough away where you're not instantly killed, but still subjected to significant radiant energy)? Black or white? It seems like black clothing would get hotter and could thus burn you by...

I am currently in my final year at college and wish to pursue a career in nuclear physics as this is something which strongly interests me. However, if it is possible i would rather skip the university part and take a different route into the career like an apprenticeship. i have found it hard...

This was one of the alchemists' big quests, and it is evident that it is impossible with the methods that they had available. But how feasible is it to do that with nuclear reactions? Especially nuclear reactions that start with relatively common materials, like hydrogen or carbon or silicon or...

Hello The textbooks about nuclear physics I have read don't explain too much about the Yukawa's model. For example, the textbook Structure of the Nucleus -by Preston and Bhaduri- finish the Yukawa's model with open questions about the "mesonic effects" by virtual pions. And my doubt: are the...

Hello! I am just months away from finishing High School and both, nuclear and astronautical engineering are the careers I am striving towards to. The thing is that I have read so many bad things and prospects for nuclear engineering, that I am not sure if it is a viable career. I want to study...

hi I am a second year community college student and I'm interested nuclear engineering. Is there any material like books or online sources that I can read to see if I want to go into this field?

I am majoring in renewable energy and planning on specializing in nuclear engineering. I want to know what course line or what courses does a nuclear engineer have to know ?

I have a basic understanding about the fissioning process in atom bombs and in nuclear reactors but that's not what my question is about. It's about a nuclear pile of a radio-active material. A pile of the element to power a space station of considerable size like say 500,000 Metric Tons. Is it...

Hi there, Sorry if thisis a stupid question its just been bugging me for a while and I am not a scientist as such so need help with the answer... nuclear fission is where two atoms collide and release energy yes? nuclear fusion is where two atoms combine to release energy and a new isotope...

Hi, I'm in my final year at an Australian high school and I plan on completing at Bachelors in Science Majoring in Physics as my undergraduate course. My career aspiration is one day work researching nuclear fusion, though I am happy to work with fission reactors, they're just not my first...

So I am a senior nuclear engineer with a good GPA and I've actually taken some extra math (PDEs) and physics (nuclear physics and astrophysics) courses over the years. I am extremely interested in detection in general. I have worked at a national lab designing and building neutron detectors and...

hello, i am new in this forum , :) i want to ask if anyone know how to calculate the nuclear spin of an atom in general, i searched in google i didnt find any method of calculation :/ can anyone help me please, thanks

Is more force required at smaller distances like the nucleous of an atom? Since strong force applies itself at the level of the atom does that prove that more force is required at smaller distances to attract according to the inverse square law? Does strong nuclear force obey the inverse square...

I have a B.S. in Mechanical Engineering (graduated 2009), and I've been working for the DoD for a little over 5 years now, and lead a small design team. During that time I've completed my M.S. in Nuclear Engineering (graduated August 2014 with a 4.0 GPA). Now that the dust has settled, I'm...

So, I bought a copy of "Command and Control" and I found out that a made for TV movie about this incident called "Disaster at Silo 7" came out on VHS format and is pretty hard to find. Amazon had 4 copies but 40 dollars for a pretty old VHS tape that probably has low quality is not something I...

I am interested in doing research in controlled nuclear fusion , i am doing my electrical engineering 4th year in India. Since no college in my country offers post graduation in fusion related fields , i have decided to do M.Tech in Nuclear science and technology in Indian Institute of Technolgy...

South Africa is set to get a nuclear power plant, following the signing of a cooperation deal with Russia recently. Both sides noted that the nuclear power plant will have a production capacity of up to 9.6 GW based on Russian Technology, by 2030. Read more here...

I'm interested in pursuing a Nuclear Engineering degree, and I was wondering if the job actually involves any drafting. I'm still a lowly undergrad, and far from a Masters, but I still have the opportunity to take such drafting classes now. Is it useful at all? I mean, the program I looked at...

Hey Guys! I joined the forums here recently, and have a vast appreciation and love for the study of Radioactive and Nuclear physics. I'm currently in high school, and am wondering what advice you guys have for my planned career path. My questions are: What tests or classes are best for college...

Homework Statement In a nuclear reactor, each atom of uranium (235 amu) releases about 200 MeV when it fissions. What is the change in mass when 1.0 kg of uranium 235 is fissioned?Homework Equations E = mc2 The Attempt at a Solution I found the energy released per kg based on the numbers...

Certainly fission is a prime example of entropy. But what about fusion? Doesn't fusion look like a process that goes from a disordered state to an ordered one? Out of chaos comes order!

how images of body organisms are are formed in positron emission tomography...?

I was looking through some universities offering Master courses in Nuclear science and other related fields like nuclear energy, nuclear physics, particle physics, theoretical physics, fission/fusion etc. Which are the top 5 universities for masters? I'm confused as to apply to which. I'm...

What is the general difference between the two (for someone who is still new to nuclear physics) and which one produces the highest net energy? Which of these has the highest potential for the future?

I'm only beginning to scratch the surface of higher level Physics and, despite my usual haunt being the EE area, I enjoy reading the responses and discussion in this section of the forum. I was talkin' to a friend about Fusion power and he asked me why it wasn't used instead of Fission. Now...

What is nuclear evaporation (e.g. proton or neutron evaporation)? Someone can explain? Thank you very much, Matt

What is difference between beta particle and electron? I mean in spin, mass or other properties.

How W- boson decay into electron and anti neutrino?

Hi, everyone. I am a student studying physics in one of colleges in Wisconsin, and this school has a program called Dual Engineering. Through this program, I will get a physics BS degree and study one type of engineering in UW-Madison for another BS. I really debate myself these days...

Homework Statement What is the cross section if the density of atoms in a material is 10^26 metres-3, and 0.04% of a beam of neutrons is stopped in a 2 cm slab of the material ? Homework Equations Sigma = event rate per nuclei / incident flux The Attempt at a Solution I have...