Searching for a response: Feynman's work on the amplifier theory.
D'Alessandro V., Daliento S., Di Mauro M., Esposito S., Naddeo A.
VII - Didattica e storia della fisica
Aula GSSI Ex ISEF - Sala Rossa - Martedì 24 h 09:00 - 12:00
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Feynman's work on the response of an amplifier performed at Los Alamos and described in a report of 1946 is studied. Motivation for this work was his involvement in the Manhattan Project, for which the necessity emerged of feeding the output pulses of counters into amplifiers. To deal with such a problem, Feynman designed a theoretical reference amplifier, providing a standard tool for comparing the operation of real devices. A general theory was elaborated, and then applied to practical problems. A special consideration deserves a mysteriously exceptional amplifier with best stability behavior, for which different physical interpretations are here envisaged.