5 Questions
What is the frequency of the resonance cavity of medical linear accelerators?
3 billion Hertz
What did R. Wideroe demonstrate in 1928?
Electrons could be accelerated through a tube using radio frequency voltage
When were medical linear accelerators first used clinically?
Early 1950’s
What type of beam can be used to treat deep-seated tumors in a linear accelerator?
X-rays
What is the energy range of electron beams used in linear accelerators for radiation therapy?
4 - 22 MeV
Study Notes
Medical Linear Accelerators
- The frequency of the resonance cavity of medical linear accelerators is 100-300 MHz.
- In 1928, R. Wideroe demonstrated the first linear accelerator, which accelerated ions using radiofrequency (RF) electric fields.
- Medical linear accelerators were first used clinically in the 1950s.
- A high-energy photon beam can be used to treat deep-seated tumors in a linear accelerator.
- The energy range of electron beams used in linear accelerators for radiation therapy is 4-25 MeV.
Test your knowledge about the fundamental concepts of linear accelerators, including the use of high Radio‐Frequency (RF) electromagnet waves and the generation of high-energy electron beams.
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