RADD 2501 Characteristic and Bremsstrahlung Production

RADD 2501 Characteristic and Bremsstrahlung Production -...

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1 X-ray machines operate by accelerating projectile electrons through large voltages towards a target material where they collide with atoms in the target. Three things happen when the projectile electrons hit the target – Characteristic X-rays are produced – Bremsstrahlung X-rays are produced – Anode (target) heating occurs Physics 108 – Lecture 31: X-Ray Production Anode 70,000V (+) 2 transformers wall plug projectile electron filament X-ray tube (also called vacuum tube or envelope) Cathode 0V (-) 2 Characteristic X-Ray Production W M Shell L Shell Target atom K shell Incoming projectile electron (high energy) Characteristic X-ray emission Outgoing projectile electron (lower energy) Ejected electron ionizes atom K X-ray L X-ray
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3 Characteristic X-Ray Spectrum Information These are produced when __________ shell electrons fill _________ shell vacancies due to the projectile electron hitting an electron and ejecting it from an __________ shell. K shell characteristic X-rays
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RADD 2501 Characteristic and Bremsstrahlung Production -...

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