Journal of the Spectroscopical Society of Japan
Online ISSN : 1884-6785
Print ISSN : 0038-7002
ISSN-L : 0038-7002
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Volume 12, Issue 6
Displaying 1-4 of 4 articles from this issue
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  • Photometric Properties of Lamps
    Mamoru NONAKA
    1964 Volume 12 Issue 6 Pages 215-223
    Published: 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.215
    JOURNAL FREE ACCESS
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  • Spectrochemical Analysis of Steel in Argon Atmosphere
    Tsutomu TAKAHASHI
    1964 Volume 12 Issue 6 Pages 224-228
    Published: 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.224
    JOURNAL FREE ACCESS
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    Many interesting excitation phenomena are known to be observable in Quantovac and Vacuum Quantrecorder analysis of steel in argon atmosphere.For example, despite the cathode jet being there, no anode jet is seen when the discharge is of unidirectional, critically damped (e.g.10 μF, 50 μH, 3 Ω, 900 V) or overdamped (e.g.10 μF, 50 μH, 20 Ω, 900 V) type.A study is made on this phenomenon concerning the profiles of spectral lines, the change of counter electrode weight and the kind of counter electrode material.
    When the discharge was of the type mentioned above, an Ag counter electrode was found increased in weight owing to the evaporation of cathode material and the Ag line 1803.23Å failed to be observed.With the oscillatory discharge, however, the matter was very different.
    With the unidirectional discharge, not only Ag but Cu, Zn etc.as the counter electrode material gave equally satisfactory results in spectrochemical analysis of steel in argon atmosphere.
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  • After Glow and Pulse Excitation of He-Ne Gas Laser
    Norihito SUZUKI
    1964 Volume 12 Issue 6 Pages 229-235
    Published: 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.229
    JOURNAL FREE ACCESS
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    He-Ne gas laser is excited by pulse modulated R.f.and its after glow is measured.From the result, it is speculated that the output of the infrared laser (1.153 μ) is enhanced by the pulse excitation, and this enhancement is actually recongnized in laser operation.But visible laser (6328 Å) under a similar treatment is found not so much affected as the infrared laser.
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  • Causes of Error in Quantometric Analysis of Iron and Steel Part 2
    Effect of Sample Temperature and of Chilled Surface Segregation
    Hiroshi NEMOTO, Sakae KURATA
    1964 Volume 12 Issue 6 Pages 236-245
    Published: 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.236
    JOURNAL FREE ACCESS
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    A study is made concerning the accuracy of quantometric analysis of iron and steel when the standard and the sample are at different temperatures and when there is segregation on chilled sample surface.
    The obtained results are summarized as follows.
    (1) The intensity and most of the intensity ratios of all the spectral lines are affected by the sample temperature.
    When the temperature difference between the standard and the sample is under 40 deg.C, the error on observed results is within the allowable limit.But, when the low voltage spark method is used for Si, Mn, Cr and Mo in cast iron, the error may become serious.
    (2) When there is segregation on chilled surface, the removing of oxide surface film generally -ensures the analytical accuracy except for the cases of Cu and P for which the scraping off of at least 0.5 mm surface layer is needed to prevent from obtaining undue analytical values.
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