Observation of Alpha-Induced Ballistic Phonon Time-of-Flight Using Multi-Channel Silicon Crystal Acoustic Detectors
We have developed a technique for producing double-sided multi-channel silicon crystal acoustic detectors (SiCADs). These detectors, which are operated at = 400 mK and use 40 nm thick films of supercond ucting Ti as the phonon sensors, have been used in time-coincidence experiments to study the propagation of alpha-induced ballistic phonons through 1 mm of crystalline Si.
Young, B. A., Cabrera, B., & Lee, A. T. (1990). Observation of alpha-induced ballistic phonon time-of-flight using multi-channel silicon crystal acoustic detectors. Physica B: Condensed Matter, 165–166, 7–8. https://doi.org/10.1016/S0921-4526(90)80853-B