Raman Spectroscopic Analysis of Impregnated Cathodes

Two optical detection systems were used to obtain Raman spectra from impregnant samples, tungsten pellets, and cathode surfaces. The advantages of each system are described and their use for cathode diagnostics are explored. The Raman spectra from various impregnant samples are given and preliminary...

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Hauptverfasser:	Turcotte, S B, Mitchell, J R, Benner, R E, Grow, R W
Format:	Report
Sprache:	eng
Schlagworte:	CATHODES DIAGNOSIS(GENERAL) Electrical and Electronic Equipment IMPREGNATION LOW PRESSURE OPTICAL DETECTION OPTICAL EQUIPMENT PE61102F PELLETS RAMAN SPECTRA RAMAN SPECTROSCOPY SPECTROSCOPY SURFACES THERMIONIC EMISSION TUNGSTEN WURADC2305J917
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Beschreibung
Zusammenfassung:	Two optical detection systems were used to obtain Raman spectra from impregnant samples, tungsten pellets, and cathode surfaces. The advantages of each system are described and their use for cathode diagnostics are explored. The Raman spectra from various impregnant samples are given and preliminary data from tungsten pellets and cathodes at low pressure and at temperatures as high as 860 C are presented. Keywords: Thermionic cathodes, Raman spectroscopy. Sponsored in part by Contract N00014-86-K-0710.