Plasma Definition and 681 Threads

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.

I'm not sure if this goes here or not, it kind of involves a few different disciplines so if it's in the wrong place, please could a moderator move it or let me know where to post it. The idea that I had and am still trying to flesh out, is of a spherical chamber. This chamber is lined with...

Ran across this about 2 months ago and have been following it closely. KesheFoundation led by a Mr. Keshe claims to have developed a reactor that manipulates plasma in a vortex that creates what they call Magravs or an interaction between the magnetic fields of two elements. They are claiming...

Hello, I'm a chemical engineer working in the shipping industry. In a few words,there are many technologies emerging lately due to a new Marine convention that forces all vessels to treat ballast water (disinfection) before discharging it in order to minimize consequences from the mix of...

Hi, I'm student of physics, i want to specialize in the areas of optics, quantum mechanics or plasma, but i want give an approach computational physics, therefore, my question is, which programing language is advisable for these areas of physics?. The options that most i read were fortran, C...

What exactly goes on in a QGP in regards to the particles and confinement? If quarks and gluons are normally confined, does this confinement suddenly not matter anymore? Does the plasma act like one big confined particle in a way? (Like one big nucleon or nucleus)

what is plasma in aerospace?? ive heard of graduate programs focusing on plasma. i thought this was physics, not aerospace engineering. can you please help me understand what this covers in a practical sense, what math is associated with this focus, and if it is practical

Sorry, I am not a physics major - I apologize in advance if this question is ignorant or if this was asked already. What would be the most effective as a Magnetohydrodynamics weapon? Assuming normal ionized air, would a liquid (liquid silver and salt water) or some type of plasma...

i'm studying the coulomb structure of 0.3um acrylic particles in He plasma. At low pressure, around 30 Pa, the negatively charged dust particles can be suspended above the negative RF electrode. However, at around 100-150Pa, all particles have fallen onto the electrode itself, making it...

Given the above quote reference Helium within our Heliosphere, I have a grouping of questions for the electromagnetic wise. If Earth and Jupiter were both placed within a dense Helium plasma region/field of our Heliosphere at the same time; and considering He plasma's high electrical...

are there any dependencies in these things? In different metals

Thanks, just curious ever since I watched Prometheus.

Here's the story, me and my boyfriend share things we learned from attending seminars. He told me that a speaker in one of the seminars he attended last month told them that by rubbing our two hands together, we could experience the presence of 'plasma' - the fourth state of matter. Here's...

Homework Statement The osmotic pressure (π) of the blood plasma necessary to induce absorption of water from interstitium (outside) to the capillary bed under circumstances shown on the picture (attached) has to be a. Less than 20 mmHg b. Between -1 and 20 mmHg c. Equal to 21 mmHg d. Greater...

A partnership of companies known as Plasmerg and Intelligentry have been making some, in my opinion, crazy claims they refer to as a Plasmic Transition Process. Nevertheless my curiosity keeps me honed in on their progress reports. They claim they use a mixture of five noble gasses [ie...

Is there an equation to find out the velocity of electrons and protons in a loop of plasma when a current is induced through it?Is the velocity just equal in magnitude and opposite in direction or is it opposite in direction and the velocity dependent on mass of the particles?(implying that an...

Suppose I have a plasma. Inside the plasma is a knotted flux tube in an electric field. Will it tend to move? Is this there a better forum for this question?

I'm taking a short course in plasma physics, and we've covered quickly the magnetic mirror. So the idea is that an ion, say a proton, moves along a helical path along parallel B-field lines - say in z-direction. Then the lines converge towards the z-axis, forming a shape like a bottleneck, with...

To anyone that can help me, Hello everyone. I am student from Mechanical Engineering and I am very new to electronic field. I currently doing my final year project which is developing the high voltage discharge circuit for the DBD plasma. The middle electronic elements is the representative...

i've been thinking about creating some sort of taser like weapon. As we know, taser range is limited by the length of the wire and the weight of the electrode. So it's only usefull over short distance. What intend to create is some sort of stunner beam. Here's how it'll work. the first part...

What is the lowest voltage required in order for Helium to become ionized? Is that equal the ionization energy in electron volt per mole (kJ/mole)? If so it's only about 24 eV for Helium. Typical voltages are around a few thousand volts for most commercial plasma globes, sometimes around 10,000...

Would a voltage amplification with the same power output increase plasma density and increase the magnetic field of the plasma, if the power output does not change? In the case of a USB plasma globe with a current flow of 300mA through 5 volt, amounts to 1,5W. CASE A: Ofcourse this...

This is not homework, but I'm developing a new machine and doing my own research as a mechatronical engineer. I'm trying to calculate the maximum volume of Helium gas that can be ionized into plasma if I apply a power of 1 watt, where the voltage is 1000 volt and the current is 0,1mA. DATA...

If I wanted to generate plasma to replicate the magnetic flux density of a i.e. N42 magnet, what would be the required volume of gas/plasma to achieve this? This magnet has a pull force of 12kg at the contact surface. I have chosen to use Helium, because it has the highest ionization energy...

I'm trying to calculate the maximum volume of Helium gas that can be ionized into plasma if I apply a power of 1 watt, where the voltage is 1000 volt and the current is 0,1mA. The ionization energy for Helium is 2372,3KJ/mol (1/2372,3*10^3)mole * 2372,3*10^3 J/mole = 1 Joule 1 Watt = 1...

Hi all In general sometimes we talk about plasma effects on satellites and radiation effects on satellites. Can someone tell the difference between the two? Thanks and Best Regards Hamza

Hello. I've experiment, which makes plasma using He-1 under atmoshpere & room temp,it's to show how DBD plasma emission energy. As I know that high intensity wave length of He-1 are 588nm,668nm,708nm..etc. If take a formula, ln(a) is propotional to -1/(T-ex). ln(a) is some value.(a has...

hey everyone.. I am looking to generate a laser induced plasma channel along the majority of the length of the laser beam and was looking for some advice and input... i was wondering if anyones done any experimentation with laser induced plasma channels and may have some information as to...

Plasma, the fourth state of matter, is a gas that consists of ions and free electrons. If you cooled plasma would it become a liquid? A solid? What would be the properties of this plasma? would you be able to magnetically separate it?

I am looking forward to apply for Plasma Physics program in PPPL(Princeton) and Univ of Michigan. But I am not sure about what sort of recommendation letters I should send. I have one strong recomendation from my undergrad project supervisor(the project is plasma diagnostics in Hall Effect...

Here is a glimpse of my current research. This is a kinetic simulation of electrostatic waves in a bump-on-tail plasma, with multiple resonances and some dissipation. Quasi-linear theory predicts a flattening of the velocity distribution over the range of resonant velocities of linearly unstable...

I was wondering, if plasma moves moves in the same direction as a magnetic field when placed in a magnetic field, it seems that plasma would be in a perpetual state of motion if suspended inside a torus created by ring magnets, such as a tokamak. Wouldn't this violate the laws of...

Hi, I've seen a video of the US navy test firing a rail gun and in the video there is a plasma plume that follows the projectile. I am unsure of what exactly is causing the plasma plume... specifically: Is it the electrical energy passing through the rails that ignites the air and...

Greetings: I am currently in the research phase of a project. I would like to get some feedback, opinions, and supporting data/information concerning the feasibility of a small volume (less than 1 cubic meter) plasma container device that would ideally be used to store energy up to 100...

Hello, Starting from the equilibrum equation of a steady-state plasma in a magnetic field: (1) \nabla P = \vec{J} \times \vec{B} where P = nkT is the plasma pressure, \vec{J} is the current and \vec{B} is the magnetic field, I am trying to solve for the magnetic field \vec{B} in terms of a...

I read the book Physics of The Impossible by Michio Kaku. It was there I first heard of plasma windows and I was like "hey that's like Halo and Mass Effect". The problem with plasma windows is that too much energy is needed to make it and that it would vapor your spaceship or soldier if you used...

I have been working on a circuit (similar to car ionizer circuit) for a pulsed plasma thruster, which is able to charged up a capacitor to voltage as high as 1.8kV. I have a diode which is able to block reverse voltage up to 2kV interfaced between the charging circuit and the discharged...

Hey does anyone know where I can access some of these either for free or if my school has a subscription then I can access them on their network. I will be joining a research group soon on the simulation of heat transfer in a tokamak and would like to be up to date with the literature.

Could thermite be used to bring certain types of matter to a plasma state? If so what materials would be easiest to render into a plasma? Inspired by the german experimental shockwave cannon from WWII... I got to wondering. If a 3 layered charge were used in such a weapon, one layer a...

Homework Statement In a cold plasma (neglecting thermal pressure) the background medium is motionless and uniform for the electrons: \rho_e = \rho_{e0} + \rho_{e1} v_e = v_{e1}\hat{z} where ρ is electron density and v is velocity. Subscript 0 denotes a constant value and 1 denotes a small...

Hello! Electric force is inversely proportional to the dielectric constant. In a textbook, this is said to be forty-fold greater for water than the phospholipid membrane. As such, ions are unlikely to cross the plasmamembrane. I assume this has something to do with preferring to stay in...

I am surprised by the result when I estimate the specific heat of the plasma produced by heavy ion collisions in the LHC: C(plasma) ~= 2e5 J/(g-K) (Details below.) This is ~1e6 times greater than C(lead)=0.13 J/(g-K) (1). Did I make a mistake? If not, can the physics experts who read this...

I'm using comsol 4 for plasma modeling but I've read that this module is just for low temperature plasma, does anybody knows the temperature limitation of the plasma in this module? I mean how much is the upper limitation of plasma temperature?

Hi, I need someone to rephrase the question or tell me what it is actually asking for because I am not sure I understand it clearly: Consider a plasma slab of width L. k_0 is the wave number in a vacuum, and k in the wave number in the plasma, where k satisfies the dispersion relation...

Hello everybody! I'm firstly at this forum, but need help, maybe somebody can help. please =) I need few advices at different question... 1. Can somebody give advice about good literature where clear describe collisional - radiative model of low temperature plasma(better if it is copper...

Homework Statement When a returning spacecraft re-enters the atmosphere, the shock wave and the friction that it generates lead to the ionisation of gas molecules just ahead of it and around it. Because of this, during the most intense phase of deceleration, radio communication signals...

Where can I find a list/chart of the temperatures at which elements reach the 4th state of matter known as plasma?

How exactly is plasma generated when space vehicles reenter Earth's atmosphere? How do the ions show up? I get how the air drag creates the initial heat, but from there I do not know. Have been searching the net for about 30min and came up with nada.

I have a question about plasma and its temperature: Which plasmas are hot plasma and which are cold plasmas.For example ionosphere ,Lightning,polar aurorae etc.

Hi, I need a book about laser plasma interactions for my thesis. I'm reading P. Gibbon book "Short Pulse Laser Interaction with Matter" and further reading the autor suggests to use Kruer book "The physics of laser plasma interaction". This book is not available in my university and before...