ACOUSTICAL RESONANCE IN LOW PRESSURE ARCS (PART I). DEVELOPMENT OF PHOTOCONDUCTIVE CELLS FOR INFRARED COMMUNICATIONS SYSTEMS (PART II)
Abstract
Part I. The causes of insta ility in low pressure arcs of the type sometimes used in infrared communication systems were investigated. Part II. A study was made of detectors and their properties as used in infrared communicati n systems. Three investigations were active: (1) The frequency dependence of the noise from evaporated lead elenide photoconductors was determined at room temperature and at 196 K. (2) The noise from evaporated lead sulfide photoconductors was investigated. Sensitive areas were delineated by cutting through the film with different scribing tools. (3) The construction of a thermoelectric cooler for use with the detectors was treated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1961
- Accession Number
- AD0264084
Entities
People
- R.j. Cashman
Organizations
- Northwestern University