Accession Number:

AD0256693

Title:

SOME EFFECTS OF ION BOMBARDMENT ON THE EMITTING PROPERTIES OF OXIDE-COATED CATHODES

Descriptive Note:

Corporate Author:

CORNELL UNIV ITHACA N Y

Personal Author(s):

Report Date:

1960-10-30

Pagination or Media Count:

1.0

Abstract:

An apparatus was developed with which it was possible to study the effect of ion bombardment by ions of oxygen, carbon monoxide, and argon on the emitting properties of oxide-coated ca hodes. A DESCRIPTION IS GIVEN OF THE DEVELOPMENT OF AN ION GUN CAPABLE OF DELIVERING AN ION CURRENT OF UP TO MICROAMPERESSQ CM ON A TARGET MAINTAINED AT A PRESSURE OF 10 o the -7th power mm Hg. This apparatus was used in an investigation of the ge eral effect of ion bombardment by oxygen, carbon monoxide, and argon. In order to explore the use of ionic deposition as a tool in studying the effect of chemical agents of the gas phase on the emission of oxide-coated cathodes, a detailed study was made of the effects of ion bombardment by oxygen and carbon monoxide as functions of 1 voltage of the pulse used to measure the emission, 2 ion beam density, 3 ion energy, 4 D-C CURRENT THROUGH THE CATHODE, A D 5 the temperature of the cathode. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE