A rotating sample holder to perform ultrasonic experiments at X-band frequencies within a cryostat of inner diameter 37 mm has been constructed. Details of 0.953 cm diam by 0.628 cm long brass reentrant cavities which are tuned and rotated from outside the cryostat are given. In a novel approach, two cavities are coupled to the same waveguide.
No takes yet. Share an insight, caveat, or question.
Dooley et al. (1968) studied this question.