Can Gamma Ray Energy Be Reduced to Visible Light Through Material Interaction?

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Discussion Overview

The discussion revolves around the possibility of reducing the energy and frequency of gamma rays to that of visible light through interactions with materials. Participants explore theoretical and practical aspects of this concept, including the mechanisms involved in such transformations.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the feasibility of reducing gamma rays to visible light and maintaining that state, prompting clarification on the terms used.
  • Another participant explains that gamma rays cannot change their energy directly but can interact with matter to produce visible light through various processes.
  • A follow-up inquiry seeks to clarify whether the frequency of gamma rays can be decreased after emission from an unstable nucleus, specifically mentioning lead as a potential material.
  • One suggestion involves using the Doppler effect, indicating that moving away from the gamma ray source at relativistic speeds could shift the frequency to visible light, though this would require extreme velocities.
  • A participant asserts that if the frequency were reduced sufficiently, the radiation would no longer be classified as gamma rays.
  • Further elaboration on the processes involved indicates that gamma rays can transfer energy to electrons in a material, which then lose energy and emit lower-energy photons, potentially including visible light.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of reducing gamma rays to visible light, with some suggesting potential mechanisms while others challenge the premise. The discussion remains unresolved regarding the practicality of these ideas.

Contextual Notes

There are limitations in the assumptions made about the interactions between gamma rays and materials, as well as the conditions under which frequency reduction might occur. The discussion does not resolve the mathematical or physical implications of the proposed mechanisms.

ryanuser
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Hi, my question is that would it be possible to reduce the energy and frequency of gamma rays to visible light then maintain it at that level?
 
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What do you mean with "reduce" and "maintain"? Gamma rays cannot just change their energy, but they can collide with matter and get converted to something else, visible light can be produced in those processes.
 
Thanks for your response, even though you may have not understood my question you have answered what I needed to know. Furthermore what are those process?
 
Actually what I meant there was after the gamma rays are emitted from an unstable nucleus, can we decrease its frequency so the frequency becomes same as visible light? Can lead be useful?
 
You could run away from the gamma ray very quickly, allowing the Doppler shift to shift it to visible light. But the speed at which you would have to be traveling away from the source would be very close to the speed of light.

You'd have to reduce the frequency by about 6 orders of magnitude...which requires velocities at something like .999999999999c ...
 
No. And it you did, It wouldn't be Gamma any more.
 
ryanuser said:
Thanks for your response, even though you may have not understood my question you have answered what I needed to know. Furthermore what are those process?
Photons change frequency or are absorbed when they interact with matter.

Clearly starlight stays visible for a long time - billions of years in some cases.
 
ryanuser said:
Furthermore what are those process?
Interaction with material.
As an example, the gamma rays can transfer a part of their energy to electrons, those electrons lose their energy by passing close to other charged objects (atoms in the material), emitting photons at lower energy. Some of them can be visible light.
 

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