Accession Number : AD0429503


Title :   THE DEVELOPMENT OF A LOW-WORK-FUNCTION COLLECTOR FOR THERMIONIC ENERGY CONVERTERS.


Descriptive Note : Annual technical summary rept. no. 1, 15 Dec 6215 Dec 63,


Corporate Author : RADIO CORP OF AMERICA LANCASTER PA


Personal Author(s) : Hall,W B ; Hill,R J


Report Date : 15 Dec 1963


Pagination or Media Count : 70


Abstract : The construction and evaluation of a unique device for studying collectors of thermionic converters operating in the Ball-of-Fire mode are described. The test vehicle contains one emitter and a rotating disc on which six collectors are mounted. Without disturbing the vacuum condition, each collector may in turn be brought adjacent to the emitter and the electrode combination can be operated as a converter. The emitter temperature, collector temperature, cesium reservoir temperature, and interelectrode spacing may all be independently varied and measured. Preliminary data for the first set of collectors evaluated in this device are presented indicating that arccast tungsten produces the highest power and polycrystaline molybdenum produces the highest voltage at the highest power. (Author)


Descriptors :   WORK FUNCTIONS , ENERGY CONVERSION , VOLTAGE , TUNGSTEN , MOLYBDENUM , CESIUM , THERMIONIC EMISSION , VAPOR PRESSURE , TEST EQUIPMENT , ELECTRONIC EQUIPMENT , HYDROGEN , CESIUM COMPOUNDS , HIGH TEMPERATURE , LIQUID METALS , VACUUM APPARATUS , ELECTRIC POWER PRODUCTION , ELECTRONS


Distribution Statement : APPROVED FOR PUBLIC RELEASE