Share Email Print

Proceedings Paper

Multialkali photocathodes grown by molecular beam epitaxy technique
Author(s): I. A. Dubovoi; A. S. Chernikov; Alexander M. Prokhorov; Mikhail Ya. Schelev; Victor N. Ushakov
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A new technique of bialkali photocathodes growth by molecular beam epitaxy (MI3E) has been developed. The photocathode film was deposited onto the substrate from molecular beams produced by simultaneously operating molecular sources of Sb, Na and K. Thus suggested procedure is noticeably differed from the classical one. Growth rate was about 1 A/sec and complete cycle of photocathode fabrication was 15-20 minutes. A special ultra high vacuum (UHV) chamber for MBE of multialkali photocathodes has been designed. The chamber is a part of UHV system consisting of an analysis vessel supplied with Auger and ESCA electron spectrometer and low energy electron diffractometer (LEED), the MBE chamber itself and a chamber for cold sealing of photocathodes with device body through indium ring. The system gives a possibility to carry out investigations of multialkali photocathode physics and to produce commercial devices. Developed technique can be used for fabrication of vacuum devices including streak tubes.

Paper Details

Date Published: 1 April 1991
PDF: 5 pages
Proc. SPIE 1358, 19th Intl Congress on High-Speed Photography and Photonics, (1 April 1991); doi: 10.1117/12.24018
Show Author Affiliations
I. A. Dubovoi, General Physics Institute (Russia)
A. S. Chernikov, General Physics Institute (Russia)
Alexander M. Prokhorov, General Physics Institute (Russia)
Mikhail Ya. Schelev, General Physics Institute (Russia)
Victor N. Ushakov, General Physics Institute (Russia)

Published in SPIE Proceedings Vol. 1358:
19th Intl Congress on High-Speed Photography and Photonics
Peter W. W. Fuller, Editor(s)

© SPIE. Terms of Use
Back to Top