What kind of energy does a single positron have?

Question

What is it capable of? 10,000 joules?
I need to know for my study on nuclear fusion.
Any help is appreciated!

Answer 1

If you are studying nuclear fusion and dealing with positrons you have problems. Protons, yes. Positrons, no!! Check it out. A positron is an "electron" with opposing charge. Also, your estimate of 10,000 joules is way too much for a single particle. Most of the fusion products are on the order of 2+ MeV, or 2E6eV*1.6E-19J/eV=3.2E-13Joules.

Answer 2

It carries a charge equivalent to the charge on an electron, but is positive, not negative. When it annihilates with an electron, you get the energy associated with the discharge of the charge on the electron and positron as well as the conversion of the mass of the positron and the electron (both have the same mass) into pure energy using E=mc^2.
Also check www.wikipedia.org and search for positron.

Answer 3

An electron has the energy of 1.602 x 10^ -19 J. The positron is the anti-particle of an electron and has the opposite charge.

Answer 4

Parity violation in electron-electron scattering has been seen for the first time, adding to physicists' understanding of the elusive weak force. Parity is name for the proposition that if one viewed an interaction among particles in a special mirror that reflected in all three dimensions then physics would be the same in the ordinary and in the mirror world. Three of the four known physical forces---gravity, electromagnetic, and strong---respect (or "conserve") parity. The fourth force, the weak force, does not conserve parity, a fact established in the 1950s by watching the decays of cobalt nuclei. Since then parity violation has also been observed in other reactions, such as transitions between energy levels within atoms and electron-positron annihilations, but never before in low-angle, relatively low-energy electron-electron scattering.

Electrons are non-nuclear particles; so why do they scatter via any kind of nuclear force, much less the weak nuclear force? Because the weak and electromagnetic forces, though normally very different in their attributes (the electromagnetic force keeps atoms together and governs light, while the weak force exerts itself only at very short range, within about the size of a proton, and is responsible for some kinds of radioactivity) the two forces are still, properly speaking, parts of a single underlying "electroweak" force. Therefore even though electrons interact chiefly through the electromagnetic force, there is enough admixture of weak-force to make itself felt, albeit only in an experiment of great delicacy.

Researchers at SLAC scattered a high-energy beam of polarized electrons off electrons in a liquid hydrogen target and measured the fractional difference in scattering rates when the intrinsic spin of the beam electrons were lined up with or against the direction of the beam. The observed asymmetry not only demonstrated that a bit of parity-violating force was present (in keeping with theoretical ideas about the weak force) but also provided a measure---in fact, the first quantitative measure---of the electrons' "weak charge," a commodity, analogous to electric charge, and indicative of the strength of the weak interaction between two electrons.


Capacitor charges up when placed in an otherwise complete circuit.

Electrons build up on negative plate and distort the electron orbits of the atoms in the dielectric.

These exert a force on the free electrons on the positive plate pushing them back to electron deficient positive terminal of the source.

This flow of electrons into and out of capacitor give the appearance of current flow through it.

Warning: A capacitor or capacitor bank capable of discharging 25 J in less than 3 seconds, or 10 J in less than 0.5 seconds, can be lethal.

A capacitor or capacitor bank presents a potentially serious electrical hazard.

Energy is determined by:
Energy in Joules (J) = 1/2 CV2


Where:
C = Capacitance in farads
V = Voltage in volts
Remember:
Greater than 10 Joules is considered hazardous
Greater than 50 Joules is a lethal level
Relatively small capacitors can store potentially lethal charges



The higher the peak voltage, the smaller the capacitor must be to avoid being a hazard in excess of 10 joules.
At 10 VOLTS C= 200,000. MICROFARADS MAX
At 100 VOLTS C= 2,000. MICROFARADS MAX
At 1,000 VOLTS C= 20. MICROFARADS MAX
At 10,000 VOLTS C= . 200 MICROFARADS MAX = 200 PICOFARADS
At 5,000 VOLTS C= . 800 MICROFARADS MAX = 800 PICOFARADS



Excessive heating or explosion that may result if a capacitor is subjected to high currents.

Internal failure of one capacitor in a bank, which frequently results in an explosion when all of the other capacitors in the bank discharge into the fault. (Approximately 10 J is the threshold energy for explosive failure of metal cans.)

The liquid dielectric, which in many capacitors may be toxic.

Internal faults, which may rupture capacitor containers. Rupture of a capacitor container may create a fire hazard.

The combustion products of liquid dielectric in capacitors, which may be toxic. Polychlorinated biphenyl (PCB) dielectric fluids can release toxic gases when decomposed by fire or the heat of an electric arc.
The following practices are recommended when working with all capacitors, and must be utilized when working where accidental contact could occur with capacitors storing greater than 10 J:

Answer 5

It has it's rest mass energy mc^2, plus any kinetic energy and and potential energy if it's held in a gravitational or electric field. If it annihilates with an electron, you get 2* m *c^2 where m is the electron mass.

Answer 6

I think a positron is a hydrogen atom with a charged nucleus. It seems to me that it has an extra neutron in its nucleus.