Final answer:
Each photoelectron at the output phosphor generates significantly more light photons than it took to create it. This concept is part of the photoelectric effect and photon multiplication in photomultipliers, which is influenced by the light intensity and photon energy.
Step-by-step explanation:
The question pertains to the concept of photoelectric effect and photon multiplication in devices such as photomultipliers. In the process being described, when a photoelectron arrives at the output phosphor, it produces significantly more light photons than it took to create it. The exact number of light photons produced for each photoelectron can vary depending on the efficiency of the photomultiplier tube and the energy of the incident photons that caused the ejection of the photoelectron.
An increase in light intensity leads to an increase in the number of photons impacting a material, potentially allowing for more photoelectrons to be ejected with higher kinetic energy, according to the photoelectric effect. This process underlies many technologies including imaging and sensing applications.