Accession Number : AD0474195


Title :   THALLIUM BEAM TUBE RESEARCH.


Descriptive Note : Quarterly progress rept. no. 4, 1 May-31 Jul 65,


Corporate Author : VARIAN ASSOCIATES INC BEVERLY MA BEVERLY MICROWAVE DIV


Personal Author(s) : Lacey, Richard F.


Report Date : 31 JUL 1965


Pagination or Media Count : 13


Abstract : The goal of this contract is the construction of a laboratory model thallium beam tube for frequency control and timekeeping applications. It has been found possible to make an efficient, continuously operating oxidized tungsten ionizer that operates at a temperature where the dwell time of thallium on the ionizer surface is short enought to permit reasonable modulation frequencies. A low background pressure of oxygen is sufficient to keep the ionizer ribbon oxidized at these temperatures. A quadrupole state selector magnet was tested. (Author)


Descriptors :   , (*ELECTRON TUBES, THALLIUM), BEAM POWER TUBES, FREQUENCY, CONTROL, TIMING DEVICES, IONIZATION, CAVITY RESONATORS, PHASE SHIFT CIRCUITS, TUNGSTEN, MAGNETS, IONS.


Subject Categories : ELECTRICAL AND ELECTRONIC EQUIPMENT


Distribution Statement : APPROVED FOR PUBLIC RELEASE