Accession Number : AD0800044

Title :   STUDY OF SOLID-STATE AND TRAVELING-WAVE MASER TECHNIQUES.

Descriptive Note : Final rept.,

Corporate Author : AIRBORNE INSTRUMENTS LAB DEER PARK NY

Personal Author(s) : DeGruyl, J. ; Smith, J. G.

Report Date : AUG 1966

Pagination or Media Count : 68

Abstract : This program called for the development of an ultra low noise broadband traveling wave Maser. This MASER had four separate electronic devices incorporated into the overall package; the TWM superconducting solid state limiters, superconducting solenoid and a superconducting RF pump source. A TWM was designed which had an inherent bandwidth of 300 MHz and a noise temperature of less than 9 degrees K. A low level power limiter using the mechanism of impact ionization in bulk germanium was demonstrated. The magnetic field for the TWM was provided by a superconducting solenoid that can be switched into a persistent mode of operation. Theoretical studies were conducted to determine the feasibility of the use of superconducting tunnel junctions as an RF pump source for the MASER. Present state-of-the-art techniques were not considered adequate for accomplishment of the desired design parameters. Conventional klystrons were therefore provided for the pumping circuitry. (Author)

Descriptors :   (*MASERS, SEMICONDUCTOR DEVICES), BROADBAND, PARAMAGNETIC MATERIALS, RUBY, MAGNETIC FIELDS, HELIUM, IONIZATION, GERMANIUM, DIRECT CURRENT, C BAND, LIMITERS, PULSE MODULATION, SEMICONDUCTING FILMS, NOISE(RADIO).

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE