A Logarithmic Recorder for Measuring Light Down to Low Intensities
Abstract
Ordinarily, photomultiplier tubes are used in photometers which have a linear response, with a consequent need for switching from high to low sensitivity ranges. To prevent injury to the multiplier tube and to avoid switching to various sensitivity levels, another electronic instrument has been developed and tested.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 03, 1950
- Accession Number
- AD1211776
Entities
People
- W. S. Jr Plymale
Organizations
- United States Naval Research Laboratory