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Photon detectors count photons of light. A photon detector has some surface that absorbs photons and produces some effect (current, voltage) proportional to the number of photons absorbed.
A photovoltaic cell consists of a layer of semiconductor (like selenium, Hg-Cd-Te, Cu2O, etc.) sandwiched between two metallic electrodes, with the exposed electrode thin enough to be transparent. Photons of light are absorbed by the semiconductor, forming electrons and holes that create a current proportional to the number of photons absorbed.
A phototube uses the photoelectric effect to generate a current from absorbed light. Light is absorbed by a metallic surface with a low work function. Electrons are emitted and attracted to a positively biased anode. Electronics measure the current, which is proportional to the number of photons absorbed.
What else can I help you with?
How do you make a photon cannon?
To make a Photon Cannon, one must first understand what a photon is. A photon is a light particle, plain and simple. A Photon cannon would be something that shoots out photons, like a strong flashlight or a laser pointer. By combining two mitheral hammers that cost 1610 gold in the game dota on warcraft 3 plus and extra 1200 gold for the recipie and this creates a stygien desolator which is more commonly known as the photon cannon and normally results in gg(good game).
Is a photon cannon real?
tape a bunch of flashlights together and rewire them so that you can turn them all on at once.Then get a focal lense that is big enough to fit over all of them. Get a mirror and reflect the light and there you go. Ninjas use Photon Cannons
What does a photon cannon look like?
A photon cannon is a fictional weapon often depicted as a sleek, futuristic device with a long barrel that emits a powerful beam of concentrated light energy. It is commonly seen in science fiction movies, video games, and literature as a form of high-tech weaponry.
What is the relationship between the work function, wavelength, and energy of a photon in the work function equation?
In the work function equation, the work function is the minimum energy needed to remove an electron from a material. The relationship between the work function, wavelength, and energy of a photon is that the energy of a photon is directly proportional to its frequency, which is inversely proportional to its wavelength. This means that a photon with higher energy (shorter wavelength) can provide enough energy to overcome the work function and eject an electron from the material.
What is Einstein's photoelectric equation?
E(photon energy)=K.E+Work Function
Who Family of Annie Jump Cannon?
Annie Jump Cannon worked in many places, but Harvard was were she did most of her work. (:
Who did Henrietta swan Levitt work with?
Annie Cannon
How do you work a cannon in Minecraft tekkit?
Power it with redstone
How can strain energy do work?
It can do alot of work. Eg. When you use a cannon launcher or slingshots. We pull it using the rubber and the stored energy pushes the cannon ball or rock and attacks.
What is a photon How does it work What is a photon's part in magnetism?
What: a photon is the boson that carries the electromagnetic force.How: I'm not sure there is an answer to this, the particle is a boson and carries a specific quanta of energy.What part: it carries the electromagnetic force in both electric and magnetic interactions between the objects involved.
Who named the photon?
Max Planck came up with the idea of a photon of energy, suggesting that instead of waves, each photon had a discrete amount, or a quantum hence the foundation of quantum mechanics. I assume it was him who gave it the name.
The light bearing packet of energy emitted by an electron is called a?
A packet of light energy is called a photon.
