Acoustic Microscopy at Cryogenic Temperatures.
Abstract
This report described our progress on very high resolution acoustic microscopy in very low temperature liquid helium. During the past year we have recorded the first acoustic images at temperatures less than .2 K. The acoustic wavelength in helium was 2400 A, which was the shortest ever used in acoustic imaging. After several improvements to the microscope were made, the helium acoustic wavelength was reduced to 900 A and images recorded with sub-1000 A resolution. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1982
- Accession Number
- ADA119705
Entities
People
- Calvin Quate
- J. S. Foster
Organizations
- Stanford University