I Question about X-ray power emitted by the Coolidge tube

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The discussion centers on a specific equation related to the energy spectrum of X-rays, particularly the variation of power emitted by a Coolidge tube as a function of X-ray energy. The original poster is seeking clarification and additional resources to better understand this theoretical expression. Participants suggest researching Kramers law or Kramers rule for bremsstrahlung as potential sources of information. The conversation emphasizes the need for accessible explanations and references to enhance comprehension of the topic. Overall, the focus is on finding reliable resources for understanding the energy spectrum in X-ray physics.
samy4408
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hello i found this equation in a course about x rays , and i couldn't find it anywhere else
they said that it is the theoretical expression of the energy spectrum , and dφ/dE is variation of the power emitted by the Coolidge tube as a function of the energy of the x ray. but i didn't understand it .
can someone point me to another source, where i can find this expression ?
thanks !
 
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Google Kramers law or Kramers rule for bremsstrahlung.
 
gleem said:
Google Kramers law or Kramers rule for bremsstrahlung.
thanks a lot !
 
Thread 'Why higher speeds need more power if backward force is the same?'

Thread 'Why higher speeds need more power if backward force is the same?'

Power = Force v Speed Power of my horse = 104kgx9.81m/s^2 x 0.732m/s = 1HP =746W Force/tension in rope stay the same if horse run at 0.73m/s or at 15m/s, so why then horse need to be more powerfull to pull at higher speed even if backward force at him(rope tension) stay the same? I understand that if I increase weight, it is hrader for horse to pull at higher speed because now is backward force increased, but don't understand why is harder to pull at higher speed if weight(backward force)...
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