Microwave-induced thermoelastic pressure wave propagation in the cat brain
✍ Scribed by James C. Lin; Jenn-Lung Su; Yujin Wang
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 380 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0197-8462
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✦ Synopsis
This paper presents direct measurements of acoustic pressure wave propagation in cat brains irradiated with pulsed 2.45-GHz microwaves. Short rectangular microwave pulses (2 microseconds, 15 kW peak power) were applied singly through a direct-contact applicator located at the occipital pole of a cat's head. Acoustic pressure waves were detected by using a small hydrophone transducer, which was inserted stereotaxically into the brain of an anesthetized animal through a matrix of holes drilled on the skull. The measurements clearly indicate that pulsed microwaves induce acoustic pressure waves which propagate with an acoustic wave velocity of 1523 m/s.