Has to be said
atdavid"You hypothesis about penetration depth is based on one method of attentuation hence you make wrong assumptions about radio waves and water." It is so funny to see a user such as this who's entire technical and scientific education is confined to Wikipedia and the latest issue of Popular Science. |
What are X-rays? atdavid got interrupted. 😬 The point of X-rays, in the context of this discussion, is that photons of sufficient energy can penetrate deep within solid material. “The first way x-rays are produced is the result of the collision between the traveling electrons from the Cathode and the electrons in the glass atoms. When the fast moving Cathode electrons crash into the glass atom’s electrons, they can knock-off an electron — similar to the way a white billiard ball knocks-off a colored, stationary billiard ball. This collision causes the atoms to emit high-energy photons, which are the X rays. The second way x-rays are produced is result of the moving Cathode electron penetrating deep inside the glass atom — and hitting the the atom’s tiny nucleus. The nucleus is a thousand times denser than the layers of electrons surrounding it, so this collision resembles a collision between something like a SmartCar or a Mini Cooper and a reinforced concrete wall. The electron crashes into the nucleus and is immediately slowed down: all the kinetic energy it has is transferred to the nucleus, which emits high-energy photons. The X rays emitted by this 2nd mechanism is called ‘Breaking X Ray radiation’. In both cases, then, the result is not a radiation composed of physical particles — as in the case of Cathodic Rays — but an electromagnetic radiation, similar to visible light or Radio waves — except X-rays have a lot more energy.” |
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