Electrons give off photons, but when do they do this? Photons are given off when the "charge of the electron is different than the current electromagnetic field", and thus photons are given off. As electrons travel to the first stage of the semi-conductor, the electromagnetic field is present and different in charge so photons are given off. As it goes to the second level or middle of the conductor, the field is reduced by the plates and thus there is not enough of a "charge difference" in the field, so no photon is given off. As it progresses to the third plate, the field is now present again at it's strength and a photon is given off. This is why you see the photon until it passes through the middle of the semi-conductor etc., and then it disappears, and then reemerges in the last plate as the field is present again. Looking forward to someone measuring this, as this is how photons work in fields. Why do photons keep being given off and how do electrons keep doing this process? Space is charged by the electromagnetic force/field, so as the electron travels it gains electrical energy so it can keep giving off photons when the "change in charges is present". Electrons, all three types are a fundamental energy carriers and do not decay, as well as positive energy/matter consists of protons and neutrons that's also a fundamental force and do not decay. Yes conversions of a neutron to a proton can take place in certain instances, however it's not caused by decay itself.
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