Campton
Updated: 3/31/2020
Campton
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Storyboard Text

  • Josh, Do you prepare for the "Campton Experiement" on Tuesday March,31? Professor send email about it last night.
  • Ye, I have seen the email, she might talk about it in tmr's class too. But you are right, lets get some prepare.
  • Check this, The Compton effect was discovered by Compton in 1932 when he was studying X-ray scattering through physical matter. In addition to the x-rays with the original wavelength λ0, the scattered light also generates x-rays with the wavelength λ> λ0, and the increment of the wavelength varies with the scattering angle.
  • So the wavelength it produces actually changes with the scattering angle, and even can be larger than the original wavelength. It seems this experiment will be very interesting.
  • Hi every one, we going to do campton exp today, please listen carefully for the Experiement
  • In this experiment, you need to use γ-ray to irradiate NaI (Tℓ) crystal to make visible photon, and generate electronic signals on the photomultiplier connected to it. This signal needs to be amplified by an amplifier and then output to an ADC for digitization and recording. After understanding the relationship between the number of gamma rays and the released energy, the energy-specific scattering angle of the main gamma rays will be determined.
  • How is the Experiment?
  • Is good, and I am doing my lab report now.
  • It seems to be another phenomenon that cannot be explained by classical physics theory. With the aid of Einstein's photon theory, the experimental phenomenon was satisfactorily explained from the perspective of photon-electron collision.
  • ReferencesPhysics Department – SUNY OswegoModern Physics LaboratoryExperiment 8https://baike.baidu.com/item/%E5%BA%B7%E6%99%AE%E9%A1%BF%E6%95%88%E5%BA%94The end
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