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Author
Gershenzon, E. M.
;
Gol'tsman, G. N.
;
Semenov, A. D.
Title
Submillimeter backward wave tube spectrometer for measuring superconducting film transmission
Type
Journal Article
Year
1983
Publication
Pribory i Tekhnika Eksperimenta
Abbreviated Journal
Pribory i Tekhnika Eksperimenta
Volume
26
Issue
5
Pages
134-137
Keywords
BWO spectroscopy, spectrometer, transmission
Abstract
A spectrometer employing six backward wave tubes is described. It is intended for investigation of superconductors in the 0.2-3 mm range of wave lengths. During the measurement of the transmission spectrum it is possible to determine the energy gap for superconduct1ng films 50 to 4000 A thick. The transmission factor can vary from 10-1 to 10-9. Spectrum of relation of film transmission factors in superconducting and normal states is measured for determining the energy gap 2 Δ. The transmission spectrum obtained by means of a computer for vanadium film 300 A thick is given as an example. The energy gap 2 Δ = 1.4 MeV
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Russian
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ISSN
0032-8162
ISBN
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Conference
Notes
Субмиллиметровый спектрометр с лампами обратной волны для измерения пропускания сверхпроводниковых пленок
Approved
no
Call Number
Serial
1713
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