What is a phase wand and how does it work in medical linear accelerator systems?

[bhaskar.udupi]

Hi all, I have recently come across term "phase wand between the magnetron and the accelerator, to provide reflected power from the accelerator to the magnetron to adjust the magnetron frequency to match the resonance frequency of the accelerator. this basicallly used in Medical Linear accelerator systems. I didn't understand how this phase wand works and design parameters.

Regards.
Bhaskara naik S

 

[sophiecentaur]

Hi.
Some context could help, if you want to encourage answers.

 

[Baluncore]

A "phase wand" is just a "tuned stub".
See: Reviews of Accelerator Science and Technology: Medical Applications of Accelerators,
Volume 2, page 89. By Alex Chao. (Google Books).