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Cashman thallous sulfide cell.

|January 23, 2010

Summary

This summary is machine-generated.

Robert J. Cashman

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Area of Science:

Physics
Materials Science
Electrical Engineering

Background:

Thallous sulfide photoconductive cells existed but had limitations.
Robert J. Cashman's wartime research (1941-1945) sponsored by the Office of Scientific Research and Development (OSRD) focused on improving infrared technology.
Empirical methods were employed to optimize cell construction.

Purpose of the Study:

To investigate the historical significance of Robert J. Cashman's wartime work on photoconductive cells.
To document the development of photosensitive lead sulfide techniques.
To understand the impact on infrared systems and technology growth.

Main Methods:

Cashman learned to create photosensitive lead sulfide.
He empirically varied construction parameters to perfect a usable cell.
His work built upon existing thallous sulfide photoconductive cell technology.

Main Results:

Development of a technique for photosensitive lead sulfide.
Enabled the construction of infrared systems with enhanced thermal emission response.
Significantly increased interest and development in infrared technology.

Conclusions:

Cashman's wartime efforts, though not the first, were historically significant for advancing infrared technology.
The development of lead sulfide photoconductive cells improved thermal detection capabilities.
His empirical approach contributed to the rapid growth of infrared applications.