NOISE IN LOW-TEMPERATURE INDIUM ANTIMONIDE PHOTOCONDUCTIVE CELLS
Abstract
This report gives an account of a short experimental study of the noise power spectrum of lowtemperature indium antimonide photoconductive cells within the frequency range 20 c to 5 kc. The results from 10 cells showed that the noise power spectrum was of the form P varies as 1/f to the nth power below a certain frequency f sub b and a constant value above this frequency. Values for n and f sub b are presented. It was found that variation of the polarizing current through the cell changed the magnitude but did not alter the shape of the power spectrum, but that a microphonic effect which was induced by faulty cooling produced a marked increase in the value of n. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1961
- Accession Number
- AD0274473
Entities
People
- D.g. Lloyd
- H.s. Owen