- #1
nickdk
- 16
- 0
Is it possible to create a strong enough (artificial) magnetic field to stop high energy particles? Much like the Earth's magnetic field stops high energy particles.
jtbell said:"Confining" and "stopping" are not the same thing.
If by "stopping", nickdk means "bringing to rest" or "making stationary", it's impossible for a magnetic field (by itself) to do that, because the magnetic force on a (charged) particle is always perpendicular to the particle's motion. It cannot change the particle's speed, only its direction of motion.
The OP asked Is it possible to create a strong enough (artificial) magnetic field to stop high energy particles?, not strong enough constant magnetic field.Bob_for_short said:We speak of a constant magnetic field, not of varying one. dB/dt = rotE, so it is E that actually makes this work.
A magnetic field is created by moving electric charges, such as electrons, which generate a magnetic force. This can be achieved through various methods such as using a magnetic material like iron, passing an electric current through a wire, or through electromagnetic induction.
The strength of a magnetic field is affected by the distance from the source of the field, the amount of electric current flowing through the source, and the permeability of the material used to create the field. The direction of the field is also determined by the direction of the electric current.
A magnetic field can be controlled or manipulated by changing the direction or strength of the electric current, using different materials with varying permeability, and by altering the distance between the source and the object affected by the field.
Magnetic fields have many practical applications, such as in electric motors and generators, MRI machines, speakers and headphones, and magnetic levitation trains. They are also used in particle accelerators, compasses, and various types of sensors.
Exposure to strong magnetic fields can have negative effects on the human body, such as disrupting the function of pacemakers and other electronic devices, causing dizziness and nausea, and potentially damaging cells and tissues. However, the strength and duration of exposure play a significant role in determining the level of harm.